Publications

Displaying 201 - 300 of 512
  • Karadöller, D. Z., Sumer, B., Ünal, E., & Ozyurek, A. (2021). Spatial language use predicts spatial memory of children: Evidence from sign, speech, and speech-plus-gesture. In T. Fitch, C. Lamm, H. Leder, & K. Teßmar-Raible (Eds.), Proceedings of the 43rd Annual Conference of the Cognitive Science Society (CogSci 2021) (pp. 672-678). Vienna: Cognitive Science Society.

    Abstract

    There is a strong relation between children’s exposure to
    spatial terms and their later memory accuracy. In the current
    study, we tested whether the production of spatial terms by
    children themselves predicts memory accuracy and whether
    and how language modality of these encodings modulates
    memory accuracy differently. Hearing child speakers of
    Turkish and deaf child signers of Turkish Sign Language
    described pictures of objects in various spatial relations to each
    other and later tested for their memory accuracy of these
    pictures in a surprise memory task. We found that having
    described the spatial relation between the objects predicted
    better memory accuracy. However, the modality of these
    descriptions in sign, speech, or speech-plus-gesture did not
    reveal differences in memory accuracy. We discuss the
    implications of these findings for the relation between spatial
    language, memory, and the modality of encoding.
  • Karadöller, D. Z., Sumer, B., & Ozyurek, A. (2021). Effects and non-effects of late language exposure on spatial language development: Evidence from deaf adults and children. Language Learning and Development, 17(1), 1-25. doi:10.1080/15475441.2020.1823846.

    Abstract

    Late exposure to the first language, as in the case of deaf children with hearing parents, hinders the production of linguistic expressions, even in adulthood. Less is known about the development of language soon after language exposure and if late exposure hinders all domains of language in children and adults. We compared late signing adults and children (MAge = 8;5) 2 years after exposure to sign language, to their age-matched native signing peers in expressions of two types of locative relations that are acquired in certain cognitive-developmental order: view-independent (IN-ON-UNDER) and view-dependent (LEFT-RIGHT). Late signing children and adults differed from native signers in their use of linguistic devices for view-dependent relations but not for view-independent relations. These effects were also modulated by the morphological complexity. Hindering effects of late language exposure on the development of language in children and adults are not absolute but are modulated by cognitive and linguistic complexity.
  • Kaufeld, G. (2021). Investigating spoken language comprehension as perceptual inference. PhD Thesis, Radboud University Nijmegen, Nijmegen.
  • Kember, H., Choi, J., Yu, J., & Cutler, A. (2021). The processing of linguistic prominence. Language and Speech, 64(2), 413-436. doi:10.1177/0023830919880217.

    Abstract

    Prominence, the expression of informational weight within utterances, can be signaled by
    prosodic highlighting (head-prominence, as in English) or by position (as in Korean edge-prominence).
    Prominence confers processing advantages, even if conveyed only by discourse manipulations. Here
    we compared processing of prominence in English and Korean, using a task that indexes processing
    success, namely recognition memory. In each language, participants’ memory was tested for target
    words heard in sentences in which they were prominent due to prosody, position, both or neither.
    Prominence produced recall advantage, but the relative effects differed across language. For Korean
    listeners the positional advantage was greater, but for English listeners prosodic and syntactic
    prominence had equivalent and additive effects. In a further experiment semantic and phonological
    foils tested depth of processing of the recall targets. Both foil types were correctly rejected,
    suggesting that semantic processing had not reached the level at which word form was no longer
    available. Together the results suggest that prominence processing is primarily driven by universal
    effects of information structure; but language-specific differences in frequency of experience prompt
    different relative advantages of prominence signal types. Processing efficiency increases in each case,
    however, creating more accurate and more rapidly contactable memory representations.
  • Kempen, G. (1993). Die Architektur des Sprechens [Abstract]. In O. Herzog, T. Christaller, & D. Schütt (Eds.), Grundlagen und Anwendungen der Künstlichen Intelligenz: 17. Fachtagung für Künstliche Intelligenz, Humboldt-Universität zu Berlin, 13.-16. September 1993 (pp. 201-202). Berlin: Springer Verlag.
  • Kempen, G. (1998). Comparing and explaining the trajectories of first and second language acquisition: In search of the right mix of psychological and linguistic factors [Commentory]. Bilingualism: Language and Cognition, 1, 29-30. doi:10.1017/S1366728998000066.

    Abstract

    When you compare the behavior of two different age groups which are trying to master the same sensori-motor or cognitive skill, you are likely to discover varying learning routes: different stages, different intervals between stages, or even different orderings of stages. Such heterogeneous learning trajectories may be caused by at least six different types of factors: (1) Initial state: the kinds and levels of skills the learners have available at the onset of the learning episode. (2) Learning mechanisms: rule-based, inductive, connectionist, parameter setting, and so on. (3) Input and feedback characteristics: learning stimuli, information about success and failure. (4) Information processing mechanisms: capacity limitations, attentional biases, response preferences. (5) Energetic variables: motivation, emotional reactions. (6) Final state: the fine-structure of kinds and levels of subskills at the end of the learning episode. This applies to language acquisition as well. First and second language learners probably differ on all six factors. Nevertheless, the debate between advocates and opponents of the Fundamental Difference Hypothesis concerning L1 and L2 acquisition have looked almost exclusively at the first two factors. Those who believe that L1 learners have access to Universal Grammar whereas L2 learners rely on language processing strategies, postulate different learning mechanisms (UG parameter setting in L1, more general inductive strategies in L2 learning). Pienemann opposes this view and, based on his Processability Theory, argues that L1 and L2 learners start out from different initial states: they come to the grammar learning task with different structural hypotheses (SOV versus SVO as basic word order of German).
  • Kempen, G., & Harbusch, K. (1998). A 'tree adjoining' grammar without adjoining: The case of scrambling in German. In Fourth International Workshop on Tree Adjoining Grammars and Related Frameworks (TAG+4).
  • Kempen, G. (1993). A cognitive architecture for incremental syntactic processing in sentence understanding and sentence production [Abstract]. In Abstracts of the International Conference on the Psychology of Language and Communication. Glasgow: University of Glasgow.
  • Kempen, G. (1993). Mensentaal als computertaal. Onze Taal, 62, 275-277.
  • Kempen, G. (1993). Naar geautomatiseerde Nederlandstalige informatiediensten. In N. Van Willigen (Ed.), RABIN uitGELUID: Tien persoonlijke bijdragen na zes jaar advisering over bibliotheken en informatie (pp. 42-51). Den Haag: RABIN.
  • Kempen, G. (1998). Sentence parsing. In A. D. Friederici (Ed.), Language comprehension: A biological perspective (pp. 213-228). Berlin: Springer.
  • Kempen, G. (1993). Spraakkunst als bouwkunst [Inaugural lecture]. Leiden: University of Leiden.
  • Kempen, G. (1993). Zinsontleding kan een exact vak worden. Levende Talen, 483, 459-462.
  • Kidd, L., & Rowland, C. F. (2021). The effect of language-focused professional development on the knowledge and behaviour of preschool practitioners. Journal of Early Childhood Literacy, 21(1), 27-59. doi:10.1177/1468798418803664.

    Abstract

    The purpose of this project was to investigate the effectiveness of a language-focused professional development programme on the knowledge and behaviour of preschool practitioners (sometimes called early years practitioners) in the UK. In Study 1 we determined whether the training received by practitioners is effective in improving their knowledge of how to support children’s language and communicative development. In Study 2 we tested whether trained practitioners, and practitioners from centres with embedded Language Champions, were able to implement the techniques they had been taught. For this, we video-recorded practitioners interacting, one to one, with 2- and 3–4-year-old children in their centres. We conclude that (1) practitioners retain the knowledge they have been taught, both about how children learn and about how to promote this learning, and that (2), in some respects, this knowledge translates well into practice; practitioners in centres with embedded Language Champions and trained practitioners used language-enriching behaviours when interacting with children more often than did untrained practitioners. We discuss how the translation of some techniques into overt behaviour could be made more effective

    Additional information

    Supplemental_material.pdf
  • Kinoshita, S., & Verdonschot, R. G. (2021). Phonological encoding is free from orthographic influence: evidence from a picture variant of the phonological Stroop task. Psychological Research, 85, 1340-1347. doi:10.1007/s00426-020-01315-2.

    Abstract

    The phonological Stroop task, in which the participant names the color of written distractors, is being used increasingly to study the phonological encoding process in speech production. A brief review of experimental paradigms used to study the phonological encoding process indicated that currently it is not known whether the onset overlap benefit (faster color naming when the distractor shares the onset segment with the color name) in a phonological Stroop task is due to phonology or orthography. The present paper investigated this question using a picture variant of the phonological Stroop task. Participants named a small set of line drawings of animals (e.g., camel) with a pseudoword distractor printed on it. Picture naming was facilitated when the distractor shared the onset segment with the picture name regardless of orthographic overlap (CUST–camel = KUST–camel < NUST–camel). We conclude that the picture variant of the phonological Stroop task is a useful tool to study the phonological encoding process, free of orthographic influence.

    Additional information

    426_2020_1315_MOESM1_ESM.docx
  • Kinoshita, S., Yu, L., Verdonschot, R. G., & Norris, D. (2021). Letter identity and visual similarity in the processing of diacritic letters. Memory & Cognition, 49(4), 815-825. doi:10.3758/s13421-020-01125-2.

    Abstract

    Are letters with a diacritic (e.g., a) recognized as a variant of the base letter (e.g., a), or as a separate letter identity? Two recent masked priming studies, one in French and one in Spanish, investigated this question, concluding that this depends on the language-specific linguistic function served by the diacritic. Experiment 1 tested this linguistic function hypothesis using Japanese kana, in which diacritics signal consonant voicing, and like French and unlike Spanish, provide lexical contrast. Contrary to the hypothesis, Japanese kana yielded the pattern of diacritic priming like Spanish. Specifically, for a target kana with a diacritic (e.g., (sic), /ga/), the kana prime without the diacritic (e.g., (sic), /ka/) facilitated recognition almost as much as the identity prime (e.g., (sic) = (sic)), whereas for a target kana without a diacritic, the kana prime with the diacritic produced less facilitation than the identity prime (e.g., (sic) < (sic)). We suggest that the pattern of diacritic priming has little to do with linguistic function, and instead it stems from a general property of visual object recognition. Experiment 2 tested this hypothesis using visually similar letters of the Latin alphabet that differ in the presence/absence of a visual feature (e.g., O and Q). The same asymmetry in priming was observed. These findings are consistent with the noisy channel model of letter/word recognition (Norris & Kinoshita, Psychological Review, 119, 517-545, 2012a).
  • Kita, S., van Gijn, I., & van der Hulst, H. (1998). Movement phases in signs and co-speech gestures, and their transcription by human coders. In Gesture and Sign-Language in Human-Computer Interaction (Lecture Notes in Artificial Intelligence - LNCS Subseries, Vol. 1371) (pp. 23-35). Berlin, Germany: Springer-Verlag.

    Abstract

    The previous literature has suggested that the hand movement in co-speech gestures and signs consists of a series of phases with qualitatively different dynamic characteristics. In this paper, we propose a syntagmatic rule system for movement phases that applies to both co-speech gestures and signs. Descriptive criteria for the rule system were developed for the analysis video-recorded continuous production of signs and gesture. It involves segmenting a stream of body movement into phases and identifying different phase types. Two human coders used the criteria to analyze signs and cospeech gestures that are produced in natural discourse. It was found that the criteria yielded good inter-coder reliability. These criteria can be used for the technology of automatic recognition of signs and co-speech gestures in order to segment continuous production and identify the potentially meaningbearing phase.
  • Klein, W. (2021). Another analysis of counterfactuality: Replies. Theoretical Linguistics, 47, 313-349. doi:10.1515/tl-2021-2028.
  • Klein, W. (2021). Another way to look at counterfactuals. Theoretical Linguistics, 47, 189-226. doi:10.1515/tl-2021-2019.

    Abstract

    Counterfactuals such as If the world did not exist, we would not notice it have been a challenge for philosophers and linguists since antiquity. There is no generally accepted semantic analysis. The prevalent view, developed in varying forms by Robert Stalnaker, David Lewis, and others, enriches the idea of strict implication by the idea of a “minimal revision” of the actual world. Objections mainly address problems of maximal similarity between worlds. In this paper, I will raise several problems of a different nature and draw attention to several phenomena that are relevant for counterfactuality but rarely discussed in that context. An alternative analysis that is very close to the linguistic facts is proposed. A core notion is the “situation talked about”: it makes little sense to discuss whether an assertion is true or false unless it is clear which situation is talked about. In counterfactuals, this situation is marked as not belonging to the actual world. Typically, this is done in the form of the finite verb in the main clause. The if-clause is optional and has only a supportive role: it provides information about the world to which the situation talked about belongs. Counterfactuals only speak about some nonactual world, of which we only know what results from the protasis. In order to judge them as true or false, an additional assumption is required: they are warranted according to the same criteria that warrant the corresponding indicative assertion. Overall similarity between worlds is irrelevant.
  • Klein, W. (2021). Das „Heidelberger Forschungsprojekt Pidgin-Deutsch “und die Folgen. In B. Ahrenholz, & M. Rost-Roth (Eds.), Ein Blick zurück nach vorn: Frühe deutsche Forschung zu Zweitspracherwerb, Migration, Mehrsprachigkeit und zweitsprachbezogener Sprachdidaktik sowie ihre Bedeutung heute (pp. 50-95). Berlin: De Gruyter.
  • Klein, W. (1998). Ein Blick zurück auf die Varietätengrammatik. In U. Ammon, K. Mattheier, & P. Nelde (Eds.), Sociolinguistica: Internationales Jahrbuch für europäische Soziolinguistik (pp. 22-38). Tübingen: Niemeyer.
  • Klein, W. (1993). Ellipse. In J. Jacobs, A. von Stechow, W. Sternefeld, & T. Vennemann (Eds.), Syntax: Ein internationales Handbuch zeitgenössischer Forschung [1. Halbband] (pp. 763-799). Berlin: de Gruyter.
  • Klein, W. (1998). Assertion and finiteness. In N. Dittmar, & Z. Penner (Eds.), Issues in the theory of language acquisition: Essays in honor of Jürgen Weissenborn (pp. 225-245). Bern: Peter Lang.
  • Klein, W. (1993). L'Expression de la spatialité dans le langage humain. In M. Denis (Ed.), Images et langages (pp. 73-85). Paris: CNRS.
  • Klein, W. (1993). Learner varieties and theoretical linguistics. In C. Perdue (Ed.), Adult language acquisition: Cross-linguistic perspectives. Cambridge: Cambridge University Press.
  • Klein, W. (Ed.). (1998). Kaleidoskop [Special Issue]. Zeitschrift für Literaturwissenschaft und Linguistik, (112).
  • Klein, W. (1998). The contribution of second language acquisition research. Language Learning, 48, 527-550. doi:10.1111/0023-8333.00057.

    Abstract

    During the last 25 years, second language acquisition (SLA) research hasmade considerable progress, but is still far from proving a solid basis for foreign language teaching, or from a general theory of SLA. In addition, its status within the linguistic disciplines is still very low. I argue this has not much to do with low empirical or theoretical standards in the field—in this regard, SLA research is fully competitive—but with a particular perspective on the acquisition process: SLA researches learners' utterances as deviations from a certain target, instead of genuine manifestations of underlying language capacity; it analyses them in terms of what they are not rather than what they are. For some purposes such a "target deviation perspective" makes sense, but it will not help SLA researchers to substantially and independently contribute to a deeper understanding of the structure and function of the human language faculty. Therefore, these findings will remain of limited interest to other scientists until SLA researchers consider learner varieties a normal, in fact typical, manifestation of this unique human capacity.
  • Klein, W. (1993). Some notorious pitfalls in the analysis of spatial expressions. In F. Beckman, & G. Heyer (Eds.), Theorie und Praxis des Lexikons (pp. 191-204). Berlin: de Gruyter.
  • Klein, W., & Vater, H. (1998). The perfect in English and German. In L. Kulikov, & H. Vater (Eds.), Typology of verbal categories: Papers presented to Vladimir Nedjalkov on the occasion of his 70th birthday (pp. 215-235). Tübingen: Niemeyer.
  • Klein, W. (1993). Wie ist der Stand der germanistischen Sprachwissenschaft, und was können wir tun, um ihn zu verbessern? Zeitschrift für Literaturwissenschaft und Linguistik, 90/91, 40-52.
  • Klein, W., & Perdue, C. (1993). Utterance structure. In C. Perdue (Ed.), Adult language acquisition: Cross-linguistic perspectives: Vol. 2 The results (pp. 3-40). Cambridge: Cambridge University Press.
  • Klein, W. (1998). Von der einfältigen Wißbegierde. Zeitschrift für Literaturwissenschaft und Linguistik, 112, 6-13.
  • Kochari, A. R., Lewis, A. G., Schoffelen, J.-M., & Schriefers, H. (2021). Semantic and syntactic composition of minimal adjective-noun phrases in Dutch: An MEG study. Neuropsychologia, 155: 107754. doi:10.1016/j.neuropsychologia.2021.107754.

    Abstract

    The possibility to combine smaller units of meaning (e.g., words) to create new and more complex meanings (e.g., phrases and sentences) is a fundamental feature of human language. In the present project, we investigated how the brain supports the semantic and syntactic composition of two-word adjective-noun phrases in Dutch, using magnetoencephalography (MEG). The present investigation followed up on previous studies reporting a composition effect in the left anterior temporal lobe (LATL) when comparing neural activity at nouns combined with adjectives, as opposed to nouns in a non-compositional context. The first aim of the present study was to investigate whether this effect, as well as its modulation by noun specificity and adjective class, can also be observed in Dutch. A second aim was to investigate to what extent these effects may be driven by syntactic composition rather than primarily by semantic composition as was previously proposed. To this end, a novel condition was administered in which participants saw nouns combined with pseudowords lacking meaning but agreeing with the nouns in terms of grammatical gender, as real adjectives would. We failed to observe a composition effect or its modulation in both a confirmatory analysis (focused on the cortical region and time-window where it has previously been reported) and in exploratory analyses (where we tested multiple regions and an extended potential time-window of the effect). A syntactically driven composition effect was also not observed in our data. We do, however, successfully observe an independent, previously reported effect on single word processing in our data, confirming that our MEG data processing pipeline does meaningfully capture language processing activity by the brain. The failure to observe the composition effect in LATL is surprising given that it has been previously reported in multiple studies. Reviewing all previous studies investigating this effect, we propose that materials and a task involving imagery might be necessary for this effect to be observed. In addition, we identified substantial variability in the regions of interest analyzed in previous studies, which warrants additional checks of robustness of the effect. Further research should identify limits and conditions under which this effect can be observed. The failure to observe specifically a syntactic composition effect in such minimal phrases is less surprising given that it has not been previously reported in MEG data.
  • Kong, X., Postema, M., Schijven, D., Carrion Castillo, A., Pepe, A., Crivello, F., Joliot, M., Mazoyer, B., Fisher, S. E., & Francks, C. (2021). Large-scale phenomic and genomic analysis of brain asymmetrical skew. Cerebral Cortex, 31(9), 4151-4168. doi:10.1093/cercor/bhab075.

    Abstract

    The human cerebral hemispheres show a left–right asymmetrical torque pattern, which has been claimed to be absent in chimpanzees. The functional significance and developmental mechanisms are unknown. Here, we carried out the largest-ever analysis of global brain shape asymmetry in magnetic resonance imaging data. Three population datasets were used, UK Biobank (N = 39 678), Human Connectome Project (N = 1113), and BIL&GIN (N = 453). At the population level, there was an anterior and dorsal skew of the right hemisphere, relative to the left. Both skews were associated independently with handedness, and various regional gray and white matter metrics oppositely in the two hemispheres, as well as other variables related to cognitive functions, sociodemographic factors, and physical and mental health. The two skews showed single nucleotide polymorphisms-based heritabilities of 4–13%, but also substantial polygenicity in causal mixture model analysis, and no individually significant loci were found in genome-wide association studies for either skew. There was evidence for a significant genetic correlation between horizontal brain skew and autism, which requires future replication. These results provide the first large-scale description of population-average brain skews and their inter-individual variations, their replicable associations with handedness, and insights into biological and other factors which associate with human brain asymmetry.
  • Konishi, M., Verdonschot, R. G., & Kakimoto, N. (2021). An investigation of tooth loss factors in elderly patients using panoramic radiographs. Oral Radiology, 37(3), 436-442. doi:10.1007/s11282-020-00475-6.

    Abstract

    Objectives The aim of this study was to observe the dental condition in a group of elderly patients over a period of 10 years in order to clarify important risk factors. Materials and methods Participants were elderly patients (in their eighties) who took panoramic radiographs between 2015 and 2016, and for whom panoramic radiographs taken around 10 year earlier were also available. The number of remaining and lost teeth, the Eichner Index, the presence or absence of molar occlusion, the respective condition of dental pulp, dental crowns, alveolar bone resorption, as well as periapical lesions were investigated through the analysis of panoramic radiographs. Additionally, other important variables were collected from patients' medical records. From the obtained panoramic radiograph sets, the patients' dental condition was investigated, and a systematic comparison was conducted. Results The analysis of the panoramic radiographs showed that the number of remaining teeth decreased from an average of 20.8-15.5, and the percentage of patients with 20 or more teeth decreased from 69.2 to 26.9%. A factor analysis investigating tooth loss risk suggested that tooth loss was associated with the bridge, P2 or greater resorption of the alveolar bone, and apical lesions, and gender (with males having a higher risk compared to females). Conclusions Teeth showing P2 or greater alveolar bone resorption, bridge, and apical lesions on panoramic radiographs are most likely to be lost in an elderly patient's near future. Consequently, this group should be encouraged to visit their dental clinics regularly and receive comprehensive instruction on individual self-care methods.
  • Konishi, M., Fujita, M., Shimabukuro, K., Wongratwanich, P., Verdonschot, R. G., & Kakimoto, N. (2021). Intraoral ultrasonographic features of tongue cancer and the incidence of cervical lymph node metastasis. Journal of Oral and Maxillofacial Surgery, 79(4), 932-939. doi:10.1016/j.joms.2020.09.006.

    Abstract

    Purpose: The purpose of this study was to investigate the relationship between the visual characteristics of tongue lesion images obtained through intraoral ultrasonographic examination and the occurrence of late cervical lymph node metastasis in patients with tongue cancer.
    Patients and Methods: This study investigated patients with primary tongue cancer who were examined using intraoral ultrasonography at Hiroshima University Hospital between January 2014 and December 2017. The inclusion criteria were squamous cell carcinoma, curative treatment administration, lateral side of tongue, surgery or brachytherapy alone, no cervical lymph node or distant metastasis as primary treatment, and treatment in our hospital. The exclusion criteria were carcinoma in situ, palliative treatment, dorsum of tongue, and multiple primary cancers. The follow-up period was more than 1 year. The primary endpoint was the occurrence of late cervical lymph node metastasis, and the primary predictor variables were age, gender, longest diameter, thickness, margin or border shapes of the lesion, and treatment methods. The relationship between the occurrence of late cervical lymph node metastasis and the longest diameter, thickness, margin types, and border types as evaluated through intraoral ultrasonography were assessed. The data were collected through a retrospective chart review.
    Results: Fifty-four patients were included in this study. The analysis indicated that irregular lesion margins were significantly associated with the occurrence of late cervical lymph node metastasis (P < .0001). The cutoff value for late cervical lymph node metastasis was 21.2 mm for the longest diameter and 3.9 mm for the thickness.
    Conclusions: The results of this study indicates that the irregular lesion margin assessed using intraoral ultrasonography may serve as an effective predictor of late cervical lymph node metastasis in N0 cases. (C) 2020 American Association of Oral and Maxillofacial Surgeons
  • Konishi, M., Fujita, M., Takeuchi, Y., Kubo, K., Imano, N., Nishibuchi, I., Murakami, Y., Shimabukuro, K., Wongratwanich, P., Verdonschot, R. G., Kakimoto, N., & Nagata, Y. (2021). Treatment outcomes of real-time intraoral sonography-guided implantation technique of 198Au grain brachytherapy for T1 and T2 tongue cancer. Journal of Radiation Research, 62(5), 871-876. doi:10.1093/jrr/rrab059.

    Abstract

    It is often challenging to determine the accurate size and shape of oral lesions through computed tomography (CT) or magnetic resonance imaging (MRI) when they are very small or obscured by metallic artifacts, such as dental prostheses. Intraoral ultrasonography (IUS) has been shown to be beneficial in obtaining precise information about total tumor extension, as well as the exact location and guiding the insertion of catheters during interstitial brachytherapy. We evaluated the role of IUS in assessing the clinical outcomes of interstitial brachytherapy with 198Au grains in tongue cancer through a retrospective medical chart review. The data from 45 patients with T1 (n = 21) and T2 (n = 24) tongue cancer, who were mainly treated with 198Au grain implants between January 2005 and April 2019, were included in this study. 198Au grain implantations were carried out, and positioning of the implants was confirmed by IUS, to ensure that 198Au grains were appropriately placed for the deep border of the tongue lesion. The five-year local control rates of T1 and T2 tongue cancers were 95.2% and 95.5%, respectively. We propose that the use of IUS to identify the extent of lesions and the position of implanted grains is effective when performing brachytherapy with 198Au grains.
  • Köster, O., Hess, M. M., Schiller, N. O., & Künzel, H. J. (1998). The correlation between auditory speech sensitivity and speaker recognition ability. Forensic Linguistics: The international Journal of Speech, Language and the Law, 5, 22-32.

    Abstract

    In various applications of forensic phonetics the question arises as to how far aural-perceptual speaker recognition performance is reliable. Therefore, it is necessary to examine the relationship between speaker recognition results and human perception/production abilities like musicality or speech sensitivity. In this study, performance in a speaker recognition experiment and a speech sensitivity test are correlated. The results show a moderately significant positive correlation between the two tasks. Generally, performance in the speaker recognition task was better than in the speech sensitivity test. Professionals in speech and singing yielded a more homogeneous correlation than non-experts. Training in speech as well as choir-singing seems to have a positive effect on performance in speaker recognition. It may be concluded, firstly, that in cases where the reliability of voice line-up results or the credibility of a testimony have to be considered, the speech sensitivity test could be a useful indicator. Secondly, the speech sensitivity test might be integrated into the canon of possible procedures for the accreditation of forensic phoneticians. Both tests may also be used in combination.
  • Koutamanis, E., Kootstra, G. J., Dijkstra, T., & Unsworth., S. (2021). Lexical priming as evidence for language-nonselective access in the simultaneous bilingual child's lexicon. In D. Dionne, & L.-A. Vidal Covas (Eds.), BUCLD 45: Proceedings of the 45th annual Boston University Conference on Language Development (pp. 413-430). Sommerville, MA: Cascadilla Press.
  • Krämer, I. (1998). Children's interpretations of indefinite object noun phrases. Linguistics in the Netherlands, 1998, 163-174. doi:10.1075/avt.15.15kra.
  • Kuijpers, C. T., Coolen, R., Houston, D., & Cutler, A. (1998). Using the head-turning technique to explore cross-linguistic performance differences. In C. Rovee-Collier, L. Lipsitt, & H. Hayne (Eds.), Advances in infancy research: Vol. 12 (pp. 205-220). Stamford: Ablex.
  • Kupisch, T., Pereira Soares, S. M., Puig-Mayenco, E., & Rothman, J. (2021). Multilingualism and Chomsky's Generative Grammar. In N. Allott (Ed.), A companion to Chomsky (pp. 232-242). doi:10.1002/9781119598732.ch15.

    Abstract

    Like Einstein's general theory of relativity is concerned with explaining the basics of an observable experience – i.e., gravity – most people take for granted that Chomsky's theory of generative grammar (GG) is concerned with the basic nature of language. This chapter highlights a mere subset of central constructs in GG, showing how they have featured prominently and thus shaped formal linguistic studies in multilingualism. Because multilingualism includes a wide range of nonmonolingual populations, the constructs are divided across child bilingualism and adult third language for greater coverage. In the case of the former, the chapter examines how poverty of the stimulus has been investigated. Using the nascent field of L3/Ln acquisition as the backdrop, it discusses how the GG constructs of I-language versus E-language sit at the core of debates regarding the very notion of what linguistic transfer and mental representations should be taken to be.
  • Lattenkamp, E. Z., Hörpel, S. G., Mengede, J., & Firzlaff, U. (2021). A researcher’s guide to the comparison of vocal production learning. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 376: 20200237. doi:10.1098/rstb.2020.0237.

    Abstract

    Vocal production learning (VPL) is the capacity to learn to produce new vocalizations, which is a rare ability in the animal kingdom and thus far has only been identified in a handful of mammalian taxa and three groups of birds. Over the last few decades, approaches to the demonstration of VPL have varied among taxa, sound production systems and functions. These discrepancies strongly impede direct comparisons between studies. In the light of the growing number of experimental studies reporting VPL, the need for comparability is becoming more and more pressing. The comparative evaluation of VPL across studies would be facilitated by unified and generalized reporting standards, which would allow a better positioning of species on any proposed VPL continuum. In this paper, we specifically highlight five factors influencing the comparability of VPL assessments: (i) comparison to an acoustic baseline, (ii) comprehensive reporting of acoustic parameters, (iii) extended reporting of training conditions and durations, (iv) investigating VPL function via behavioural, perception-based experiments and (v) validation of findings on a neuronal level. These guidelines emphasize the importance of comparability between studies in order to unify the field of vocal learning.
  • Lattenkamp, E. Z., Linnenschmidt, M., Mardus, E., Vernes, S. C., Wiegrebe, L., & Schutte, M. (2021). The vocal development of the pale spear-nosed bat is dependent on auditory feedback. Philosophical Transactions of the Royal Society of London, Series B: Biological Sciences, 376: 20200253. doi:10.1098/rstb.2020.0253.

    Abstract

    Human vocal development and speech learning require acoustic feedback, and
    humans who are born deaf do not acquire a normal adult speech capacity. Most
    other mammals display a largely innate vocal repertoire. Like humans, bats are
    thought to be one of the few taxa capable of vocal learning as they can acquire
    new vocalizations by modifying vocalizations according to auditory experiences.
    We investigated the effect of acoustic deafening on the vocal development of the
    pale spear-nosed bat. Three juvenile pale spear-nosed bats were deafened, and
    their vocal development was studied in comparison with an age-matched, hear-
    ing control group. The results show that during development the deafened bats
    increased their vocal activity, and their vocalizations were substantially altered,
    being much shorter, higher in pitch, and more aperiodic than the vocalizations
    of the control animals. The pale spear-nosed bat relies on auditory feedback
    for vocal development and, in the absence of auditory input, species-atypical
    vocalizations are acquired. This work serves as a basis for further research
    using the pale spear-nosed bat as a mammalian model for vocal learning, and
    contributes to comparative studies on hearing impairment across species.
    This article is part of the theme issue ‘Vocal learning in animals and
    humans’.
  • Lattenkamp, E. Z., Nagy, M., Drexl, M., Vernes, S. C., Wiegrebe, L., & Knörnschild, M. (2021). Hearing sensitivity and amplitude coding in bats are differentially shaped by echolocation calls and social calls. Proceedings of the Royal Society B: Biological Sciences, 288(1942): 20202600. doi:10.1098/rspb.2020.2600.

    Abstract

    Differences in auditory perception between species are influenced by phylogenetic origin and the perceptual challenges imposed by the natural environment, such as detecting prey- or predator-generated sounds and communication signals. Bats are well suited for comparative studies on auditory perception since they predominantly rely on echolocation to perceive the world, while their social calls and most environmental sounds have low frequencies. We tested if hearing sensitivity and stimulus level coding in bats differ between high and low-frequency ranges by measuring auditory brainstem responses (ABRs) of 86 bats belonging to 11 species. In most species, auditory sensitivity was equally good at both high- and low-frequency ranges, while amplitude was more finely coded for higher frequency ranges. Additionally, we conducted a phylogenetic comparative analysis by combining our ABR data with published data on 27 species. Species-specific peaks in hearing sensitivity correlated with peak frequencies of echolocation calls and pup isolation calls, suggesting that changes in hearing sensitivity evolved in response to frequency changes of echolocation and social calls. Overall, our study provides the most comprehensive comparative assessment of bat hearing capacities to date and highlights the evolutionary pressures acting on their sensory perception.

    Additional information

    data
  • Law, R., & Pylkkänen, L. (2021). Lists with and without syntax: A new approach to measuring the neural processing of syntax. The Journal of Neuroscience, 41(10), 2186-2196. doi:10.1523/JNEUROSCI.1179-20.2021.

    Abstract

    In the neurobiology of language, a fundamental challenge is deconfounding syntax from semantics. Changes in syntactic structure usually correlate with changes in meaning. We approached this challenge from a new angle. We deployed word lists, which are usually the unstructured control in studies of syntax, as both the test and the control stimulus. Three-noun lists (lamps, dolls, guitars) were embedded in sentences (The eccentric man hoarded lamps, dolls, guitars…) and in longer lists (forks, pen, toilet, rodeo, graves, drums, mulch, lamps, dolls, guitars…). This allowed us to perfectly control both lexical characteristics and local combinatorics: the same words occurred in both conditions and in neither case did the list items locally compose into phrases (e.g. ‘lamps’ and ‘dolls’ do not form a phrase). But in one case, the list partakes in a syntactic tree, while in the other, it does not. Being embedded inside a syntactic tree increased source-localized MEG activity at ~250-300ms from word onset in the left inferior frontal cortex, at ~300-350ms in the left anterior temporal lobe and, most reliably, at ~330-400ms in left posterior temporal cortex. In contrast, effects of semantic association strength, which we also varied, localized in left temporo-parietal cortex, with high associations increasing activity at around 400ms. This dissociation offers a novel characterization of the structure vs. meaning contrast in the brain: The fronto-temporal network that is familiar from studies of sentence processing can be driven by the sheer presence of global sentence structure, while associative semantics has a more posterior neural signature.

    Additional information

    Link to Preprint on BioRxiv
  • Lemen, H., Lieven, E., & Theakston, A. (2021). A comparison of the pragmatic patterns in the spontaneous because- and if-sentences produced by children and their caregivers. Journal of Pragmatics, 185, 15-34. doi:10.1016/j.pragma.2021.07.016.

    Abstract

    Findings from corpus (e.g. Diessel, 2004) and comprehension (e.g. De Ruiter et al., 2018) studies show that children produce the adverbial connectives because and if long before they seem able to understand them. However, although children's comprehension is typically tested on sentences expressing the pragmatic relationship which Sweetser (1990) calls “Content”, children also hear and produce sentences expressing “Speech–Act” relationships (e.g. De Ruiter et al., 2021; Kyratzis et al., 1990). To better understand the possible influence of pragmatic variation on 2- to 4- year-old children's acquisition of these connectives, we coded the because and if Speech–Act sentences of 14 British English-speaking mother-child dyads for the type of illocutionary act they contained, as well as the phrasing following the connective. Analyses revealed that children's because Speech–Act sentences were primarily explanations of Statements/Claims, while their if Speech–Act sentences typically related to permission and politeness. While children's because-sentences showed a great deal of individuality, their if-sentences closely resembled their mothers’, containing a high proportion of recurring phrases which appear to be abstracted from input. We discuss how these patterns might help shape children's understanding of each connective and contribute to the children's overall difficulty with because and if.
  • Levelt, W. J. M. (1993). Die konnektionistische Mode. In J. Engelkamp, & T. Pechmann (Eds.), Mentale Repräsentation (pp. 51-62). Bern: Huber Verlag.
  • Levelt, W. J. M. (1993). Accessing words in speech production: Stages, processes and representations. In W. J. M. Levelt (Ed.), Lexical access in speech production (pp. 1-22). Cambridge, MA: Blackwell Publishers.

    Abstract

    Originally published in Cognition International Journal of Cognitive Science, Volume 42, Numbers 1-3, 1992 This paper introduces a special issue of Cognition 011 lexical access in speech production. Over the last quarter century, the psycholinguistic study of speaking, and in particular of accessing words in speech, received a major new impetus from the analysis of speech errors, dysfluencies and hesMions, from aphasiology, and from new paradigms in reaction time research. The emerging theoretical picture partitions the accessing process into two subprocesses, the selection of an appropriate lexical item (and "lemma") from the mental lexicon, and the phonological encoding of that item, that is, the computation of a phonetic program for the item in the context of utterance These two theoretical domains are successively introduced by outlining some core issues that have been or still have to be addressed. The final section discusses the controversial question whether phonological encoding can affect lexical selection. This partitioning is also followed in this special issue as a whole. There are, first, four papers on lexical selection, then three papers on phonological encoding, and finally one on the interaction between selection and phonological encoding.
  • Levelt, W. J. M., Praamstra, P., Meyer, A. S., Helenius, P., & Salmelin, R. (1998). An MEG study of picture naming. Journal of Cognitive Neuroscience, 10(5), 553-567. doi:10.1162/089892998562960.

    Abstract

    The purpose of this study was to relate a psycholinguistic processing model of picture naming to the dynamics of cortical activation during picture naming. The activation was recorded from eight Dutch subjects with a whole-head neuromagnetometer. The processing model, based on extensive naming latency studies, is a stage model. In preparing a picture's name, the speaker performs a chain of specific operations. They are, in this order, computing the visual percept, activating an appropriate lexical concept, selecting the target word from the mental lexicon, phonological encoding, phonetic encoding, and initiation of articulation. The time windows for each of these operations are reasonably well known and could be related to the peak activity of dipole sources in the individual magnetic response patterns. The analyses showed a clear progression over these time windows from early occipital activation, via parietal and temporal to frontal activation. The major specific findings were that (1) a region in the left posterior temporal lobe, agreeing with the location of Wernicke's area, showed prominent activation starting about 200 msec after picture onset and peaking at about 350 msec, (i.e., within the stage of phonological encoding), and (2) a consistent activation was found in the right parietal cortex, peaking at about 230 msec after picture onset, thus preceding and partly overlapping with the left temporal response. An interpretation in terms of the management of visual attention is proposed.
  • Levelt, W. J. M. (1962). Motion breaking and the perception of causality. In A. Michotte (Ed.), Causalité, permanence et réalité phénoménales: Etudes de psychologie expérimentale (pp. 244-258). Louvain: Publications Universitaires.
  • Levelt, W. J. M., & Plomp, R. (1962). Musical consonance and critical bandwidth. In Proceedings of the 4th International Congress Acoustics (pp. 55-55).
  • Levelt, W. J. M. (1993). Lexical access in speech production. In E. Reuland, & W. Abraham (Eds.), Knowledge and language: Vol. 1. From Orwell's problem to Plato's problem (pp. 241-251). Dordrecht: Kluwer.
  • Levelt, W. J. M. (Ed.). (1993). Lexical access in speech production. Cambridge, Mass.: Blackwell.

    Abstract

    Formerly published in: Cognition : international journal of cognitive science, vol. 42, nos. 1-3, 1992
  • Levelt, W. J. M. (1993). Lexical selection, or how to bridge the major rift in language processing. In F. Beckmann, & G. Heyer (Eds.), Theorie und Praxis des Lexikons (pp. 164-172). Berlin: Walter de Gruyter.
  • Levelt, W. J. M., & Schiller, N. O. (1998). Is the syllable frame stored? [Commentary on the BBS target article 'The frame/content theory of evolution of speech production' by Peter F. McNeilage]. Behavioral and Brain Sciences, 21, 520.

    Abstract

    This commentary discusses whether abstract metrical frames are stored. For stress-assigning languages (e.g., Dutch and English), which have a dominant stress pattern, metrical frames are stored only for words that deviate from the default stress pattern. The majority of the words in these languages are produced without retrieving any independent syllabic or metrical frame.
  • Levelt, W. J. M. (1993). The architecture of normal spoken language use. In G. Blanken, J. Dittman, H. Grimm, J. C. Marshall, & C.-W. Wallesch (Eds.), Linguistic disorders and pathologies: An international handbook (pp. 1-15). Berlin: Walter de Gruyter.
  • Levelt, W. J. M. (1993). Spreken als vaardigheid. In C. Blankenstijn, & A. Scheper (Eds.), Taalvaardigheid (pp. 1-16). Dordrecht: ICG Publications.
  • Levelt, W. J. M. (1998). The genetic perspective in psycholinguistics, or: Where do spoken words come from? Journal of Psycholinguistic Research, 27(2), 167-180. doi:10.1023/A:1023245931630.

    Abstract

    The core issue in the 19-century sources of psycholinguistics was the question, "Where does language come from?'' This genetic perspective unified the study of the ontogenesis, the phylogenesis, the microgenesis, and to some extent the neurogenesis of language. This paper makes the point that this original perspective is still a valid and attractive one. It is exemplified by a discussion of the genesis of spoken words.
  • Levelt, W. J. M. (1993). Timing in speech production with special reference to word form encoding. Annals of the New York Academy of Sciences, 682, 283-295. doi:10.1111/j.1749-6632.1993.tb22976.x.
  • Levinson, S. C., & Brown, P. (1993). Background to "Immanuel Kant among the Tenejapans". Anthropology Newsletter, 34(3), 22-23. doi:10.1111/an.1993.34.3.22.
  • Levinson, S. C. (1998). Deixis. In J. L. Mey (Ed.), Concise encyclopedia of pragmatics (pp. 200-204). Amsterdam: Elsevier.
  • Levinson, S. C. (1998). Minimization and conversational inference. In A. Kasher (Ed.), Pragmatics: Vol. 4 Presupposition, implicature and indirect speech acts (pp. 545-612). London: Routledge.
  • Levinson, S. C. (1993). La Pragmatica [Italian translation of Pragmatics]. Bologna: Il Mulino.
  • Levinson, S. C. (1993). Raumkonzeptionen mit absoluten Systemen. In Max Planck Gesellschaft Jahrbuch 1993 (pp. 297-299).
  • Levinson, S. C. (1998). Studying spatial conceptualization across cultures: Anthropology and cognitive science. Ethos, 26(1), 7-24. doi:10.1525/eth.1998.26.1.7.

    Abstract

    Philosophers, psychologists, and linguists have argued that spatial conception is pivotal to cognition in general, providing a general, egocentric, and universal framework for cognition as well as metaphors for conceptualizing many other domains. But in an aboriginal community in Northern Queensland, a system of cardinal directions informs not only language, but also memory for arbitrary spatial arrays and directions. This work suggests that fundamental cognitive parameters, like the system of coding spatial locations, can vary cross-culturally, in line with the language spoken by a community. This opens up the prospect of a fruitful dialogue between anthropology and the cognitive sciences on the complex interaction between cultural and universal factors in the constitution of mind.
  • Levshina, N. (2021). Cross-linguistic trade-offs and causal relationships between cues to grammatical subject and object, and the problem of efficiency-related explanations. Frontiers in Psychology, 12: 648200. doi:10.3389/fpsyg.2021.648200.

    Abstract

    Cross-linguistic studies focus on inverse correlations (trade-offs) between linguistic variables that reflect different cues to linguistic meanings. For example, if a language has no case marking, it is likely to rely on word order as a cue for identification of grammatical roles. Such inverse correlations are interpreted as manifestations of language users’ tendency to use language efficiently. The present study argues that this interpretation is problematic. Linguistic variables, such as the presence of case, or flexibility of word order, are aggregate properties, which do not represent the use of linguistic cues in context directly. Still, such variables can be useful for circumscribing the potential role of communicative efficiency in language evolution, if we move from cross-linguistic trade-offs to multivariate causal networks. This idea is illustrated by a case study of linguistic variables related to four types of Subject and Object cues: case marking, rigid word order of Subject and Object, tight semantics and verb-medial order. The variables are obtained from online language corpora in thirty languages, annotated with the Universal Dependencies. The causal model suggests that the relationships between the variables can be explained predominantly by sociolinguistic factors, leaving little space for a potential impact of efficient linguistic behavior.
  • Levshina, N. (2021). Conditional inference trees and random forests. In M. Paquot, & T. Gries (Eds.), Practical Handbook of Corpus Linguistics (pp. 611-643). New York: Springer.
  • Levshina, N., & Moran, S. (2021). Efficiency in human languages: Corpus evidence for universal principles. Linguistics Vanguard, 7(s3): 20200081. doi:10.1515/lingvan-2020-0081.

    Abstract

    Over the last few years, there has been a growing interest in communicative efficiency. It has been argued that language users act efficiently, saving effort for processing and articulation, and that language structure and use reflect this tendency. The emergence of new corpus data has brought to life numerous studies on efficient language use in the lexicon, in morphosyntax, and in discourse and phonology in different languages. In this introductory paper, we discuss communicative efficiency in human languages, focusing on evidence of efficient language use found in multilingual corpora. The evidence suggests that efficiency is a universal feature of human language. We provide an overview of different manifestations of efficiency on different levels of language structure, and we discuss the major questions and findings so far, some of which are addressed for the first time in the contributions in this special collection.
  • Levshina, N., & Moran, S. (Eds.). (2021). Efficiency in human languages: Corpus evidence for universal principles [Special Issue]. Linguistics Vanguard, 7(s3).
  • Levshina, N. (2021). Communicative efficiency and differential case marking: A reverse-engineering approach. Linguistics Vanguard, 7(s3): 20190087. doi:10.1515/lingvan-2019-0087.
  • Long, M., Moore, I., Mollica, F., & Rubio-Fernandez, P. (2021). Contrast perception as a visual heuristic in the formulation of referential expressions. Cognition, 217: 104879. doi:10.1016/j.cognition.2021.104879.

    Abstract

    We hypothesize that contrast perception works as a visual heuristic, such that when speakers perceive a significant degree of contrast in a visual context, they tend to produce the corresponding adjective to describe a referent. The contrast perception heuristic supports efficient audience design, allowing speakers to produce referential expressions with minimum expenditure of cognitive resources, while facilitating the listener's visual search for the referent. We tested the perceptual contrast hypothesis in three language-production experiments. Experiment 1 revealed that speakers overspecify color adjectives in polychrome displays, whereas in monochrome displays they overspecified other properties that were contrastive. Further support for the contrast perception hypothesis comes from a re-analysis of previous work, which confirmed that color contrast elicits color overspecification when detected in a given display, but not when detected across monochrome trials. Experiment 2 revealed that even atypical colors (which are often overspecified) are only mentioned if there is color contrast. In Experiment 3, participants named a target color faster in monochrome than in polychrome displays, suggesting that the effect of color contrast is not analogous to ease of production. We conclude that the tendency to overspecify color in polychrome displays is not a bottom-up effect driven by the visual salience of color as a property, but possibly a learned communicative strategy. We discuss the implications of our account for pragmatic theories of referential communication and models of audience design, challenging the view that overspecification is a form of egocentric behavior.

    Additional information

    supplementary data
  • Long, M., Shukla, V., & Rubio-Fernandez, P. (2021). The development of simile comprehension: From similarity to scalar implicature. Child Development, 92(4), 1439-1457. doi:10.1111/cdev.13507.

    Abstract

    Similes require two different pragmatic skills: appreciating the intended similarity and deriving a scalar implicature (e.g., “Lucy is like a parrot” normally implies that Lucy is not a parrot), but previous studies overlooked this second skill. In Experiment 1, preschoolers (N = 48; ages 3–5) understood “X is like a Y” as an expression of similarity. In Experiment 2 (N = 99; ages 3–6, 13) and Experiment 3 (N = 201; ages 3–5 and adults), participants received metaphors (“Lucy is a parrot”) or similes (“Lucy is like a parrot”) as clues to select one of three images (a parrot, a girl or a parrot-looking girl). An early developmental trend revealed that 3-year-olds started deriving the implicature “X is not a Y,” whereas 5-year-olds performed like adults.
  • Lopopolo, A. (2021). Properties, structures and operations: Studies on language processing in the brain using computational linguistics and naturalistic stimuli. PhD Thesis, Radboud University Nijmegen, Nijmegen.
  • Lopopolo, A., Van de Bosch, A., Petersson, K. M., & Willems, R. M. (2021). Distinguishing syntactic operations in the brain: Dependency and phrase-structure parsing. Neurobiology of Language, 2(1), 152-175. doi:10.1162/nol_a_00029.

    Abstract

    Finding the structure of a sentence — the way its words hold together to convey meaning — is a fundamental step in language comprehension. Several brain regions, including the left inferior frontal gyrus, the left posterior superior temporal gyrus, and the left anterior temporal pole, are supposed to support this operation. The exact role of these areas is nonetheless still debated. In this paper we investigate the hypothesis that different brain regions could be sensitive to different kinds of syntactic computations. We compare the fit of phrase-structure and dependency structure descriptors to activity in brain areas using fMRI. Our results show a division between areas with regard to the type of structure computed, with the left ATP and left IFG favouring dependency structures and left pSTG favouring phrase structures.
  • Lowndes, R., Molz, B., Warriner, L., Herbik, A., De Best, P. B., Raz, N., Gouws, A., Ahmadi, K., McLean, R. J., Gottlob, I., Kohl, S., Choritz, L., Maguire, J., Kanowski, M., Käsmann-Kellner, B., Wieland, I., Banin, E., Levin, N., Hoffmann, M. B., Morland, A. B. and 1 moreLowndes, R., Molz, B., Warriner, L., Herbik, A., De Best, P. B., Raz, N., Gouws, A., Ahmadi, K., McLean, R. J., Gottlob, I., Kohl, S., Choritz, L., Maguire, J., Kanowski, M., Käsmann-Kellner, B., Wieland, I., Banin, E., Levin, N., Hoffmann, M. B., Morland, A. B., & Baseler, H. A. (2021). Structural differences across multiple visual cortical regions in the absence of cone function in congenital achromatopsia. Frontiers in Neuroscience, 15: 718958. doi:10.3389/fnins.2021.718958.

    Abstract

    Most individuals with congenital achromatopsia (ACHM) carry mutations that affect the retinal phototransduction pathway of cone photoreceptors, fundamental to both high acuity vision and colour perception. As the central fovea is occupied solely by cones, achromats have an absence of retinal input to the visual cortex and a small central area of blindness. Additionally, those with complete ACHM have no colour perception, and colour processing regions of the ventral cortex also lack typical chromatic signals from the cones. This study examined the cortical morphology (grey matter volume, cortical thickness, and cortical surface area) of multiple visual cortical regions in ACHM (n = 15) compared to normally sighted controls (n = 42) to determine the cortical changes that are associated with the retinal characteristics of ACHM. Surface-based morphometry was applied to T1-weighted MRI in atlas-defined early, ventral and dorsal visual regions of interest. Reduced grey matter volume in V1, V2, V3, and V4 was found in ACHM compared to controls, driven by a reduction in cortical surface area as there was no significant reduction in cortical thickness. Cortical surface area (but not thickness) was reduced in a wide range of areas (V1, V2, V3, TO1, V4, and LO1). Reduction in early visual areas with large foveal representations (V1, V2, and V3) suggests that the lack of foveal input to the visual cortex was a major driving factor in morphological changes in ACHM. However, the significant reduction in ventral area V4 coupled with the lack of difference in dorsal areas V3a and V3b suggest that deprivation of chromatic signals to visual cortex in ACHM may also contribute to changes in cortical morphology. This research shows that the congenital lack of cone input to the visual cortex can lead to widespread structural changes across multiple visual areas.

    Additional information

    table S1
  • Lutzenberger, H., De Vos, C., Crasborn, O., & Fikkert, P. (2021). Formal variation in the Kata Kolok lexicon. Glossa: a journal of general linguistics, 6. doi:10.16995/glossa.5880.

    Abstract

    Sign language lexicons incorporate phonological specifications. Evidence from emerging sign languages suggests that phonological structure emerges gradually in a new language. In this study, we investigate variation in the form of signs across 20 deaf adult signers of Kata Kolok, a sign language that emerged spontaneously in a Balinese village community. Combining methods previously used for sign comparisons, we introduce a new numeric measure of variation. Our nuanced yet comprehensive approach to form variation integrates three levels (iconic motivation, surface realisation, feature differences) and allows for refinement through weighting the variation score by token and signer frequency. We demonstrate that variation in the form of signs appears in different degrees at different levels. Token frequency in a given dataset greatly affects how much variation can surface, suggesting caution in interpreting previous findings. Different sign variants have different scopes of use among the signing population, with some more widely used than others. Both frequency weightings (token and signer) identify dominant sign variants, i.e., sign forms that are produced frequently or by many signers. We argue that variation does not equal the absence of conventionalisation. Indeed, especially in micro-community sign languages, variation may be key to understanding patterns of language emergence.
  • Mak, M., & Willems, R. M. (2021). Eyelit: Eye movement and reader response data during literary reading. Journal of open humanities data, 7: 25. doi:10.5334/johd.49.

    Abstract

    An eye-tracking data set is described of 102 participants reading three Dutch literary short stories each (7790 words in total per participant). The pre-processed data set includes (1) Fixation report, (2) Saccade report, (3) Interest Area report, (4) Trial report (aggregated data for each page), (5) Sample report (sampling rate = 500 Hz), (6) Questionnaire data on reading experiences and participant characteristics, and (7) word characteristics for all words (with the potential of calculating additional word characteristics). It is stored on DANS, and can be used to study word characteristics or literary reading and all facets of eye movements.
  • Mak, M., & Willems, R. M. (2021). Mental simulation during literary reading. In D. Kuiken, & A. M. Jacobs (Eds.), Handbook of empirical literary studies (pp. 63-84). Berlin: De Gruyter.

    Abstract

    Readers experience a number of sensations during reading. They do
    not – or do not only – process words and sentences in a detached, abstract
    manner. Instead they “perceive” what they read about. They see descriptions of
    scenery, feel what characters feel, and hear the sounds in a story. These sensa-
    tions tend to be grouped under the umbrella terms “mental simulation” and
    “mental imagery.” This chapter provides an overview of empirical research on
    the role of mental simulation during literary reading. Our chapter also discusses
    what mental simulation is and how it relates to mental imagery. Moreover, it
    explores how mental simulation plays a role in leading models of literary read-
    ing and investigates under what circumstances mental simulation occurs dur-
    ing literature reading. Finally, the effect of mental simulation on the literary
    reader’s experience is discussed, and suggestions and unresolved issues in this
    field are formulated.
  • Mamus, E., Speed, L. J., Ozyurek, A., & Majid, A. (2021). Sensory modality of input influences encoding of motion events in speech but not co-speech gestures. In T. Fitch, C. Lamm, H. Leder, & K. Teßmar-Raible (Eds.), Proceedings of the 43rd Annual Conference of the Cognitive Science Society (CogSci 2021) (pp. 376-382). Vienna: Cognitive Science Society.

    Abstract

    Visual and auditory channels have different affordances and
    this is mirrored in what information is available for linguistic
    encoding. The visual channel has high spatial acuity, whereas
    the auditory channel has better temporal acuity. These
    differences may lead to different conceptualizations of events
    and affect multimodal language production. Previous studies of
    motion events typically present visual input to elicit speech and
    gesture. The present study compared events presented as audio-
    only, visual-only, or multimodal (visual+audio) input and
    assessed speech and co-speech gesture for path and manner of
    motion in Turkish. Speakers with audio-only input mentioned
    path more and manner less in verbal descriptions, compared to
    speakers who had visual input. There was no difference in the
    type or frequency of gestures across conditions, and gestures
    were dominated by path-only gestures. This suggests that input
    modality influences speakers’ encoding of path and manner of
    motion events in speech, but not in co-speech gestures.
  • Manhardt, F. (2021). A tale of two modalities. PhD Thesis, Radboud University Nijmegen, Nijmegen.
  • Manhardt, F., Brouwer, S., & Ozyurek, A. (2021). A tale of two modalities: Sign and speech influence in each other in bimodal bilinguals. Psychological Science, 32(3), 424-436. doi:10.1177/0956797620968789.

    Abstract

    Bimodal bilinguals are hearing individuals fluent in a sign and a spoken language. Can the two languages influence each other in such individuals despite differences in the visual (sign) and vocal (speech) modalities of expression? We investigated cross-linguistic influences on bimodal bilinguals’ expression of spatial relations. Unlike spoken languages, sign uses iconic linguistic forms that resemble physical features of objects in a spatial relation and thus expresses specific semantic information. Hearing bimodal bilinguals (n = 21) fluent in Dutch and Sign Language of the Netherlands and their hearing nonsigning and deaf signing peers (n = 20 each) described left/right relations between two objects. Bimodal bilinguals expressed more specific information about physical features of objects in speech than nonsigners, showing influence from sign language. They also used fewer iconic signs with specific semantic information than deaf signers, demonstrating influence from speech. Bimodal bilinguals’ speech and signs are shaped by two languages from different modalities.

    Additional information

    supplementary materials
  • McConnell, K., & Blumenthal-Dramé, A. (2021). Usage-Based Individual Differences in the Probabilistic Processing of Multi-Word Sequences. Frontiers in Communication, 6: 703351. doi:10.3389/fcomm.2021.703351.

    Abstract

    While it is widely acknowledged that both predictive expectations and retrodictive
    integration influence language processing, the individual differences that affect these
    two processes and the best metrics for observing them have yet to be fully described.
    The present study aims to contribute to the debate by investigating the extent to which
    experienced-based variables modulate the processing of word pairs (bigrams).
    Specifically, we investigate how age and reading experience correlate with lexical
    anticipation and integration, and how this effect can be captured by the metrics of
    forward and backward transition probability (TP). Participants read more and less
    strongly associated bigrams, paired to control for known lexical covariates such as
    bigram frequency and meaning (i.e., absolute control, total control, absolute silence,
    total silence) in a self-paced reading (SPR) task. They additionally completed
    assessments of exposure to print text (Author Recognition Test, Shipley vocabulary
    assessment, Words that Go Together task) and provided their age. Results show that
    both older age and lesser reading experience individually correlate with stronger TP
    effects. Moreover, TP effects differ across the spillover region (the two words following
    the noun in the bigram)
  • McDonough, L., Choi, S., Bowerman, M., & Mandler, J. M. (1998). The use of preferential looking as a measure of semantic development. In C. Rovee-Collier, L. P. Lipsitt, & H. Hayne (Eds.), Advances in Infancy Research. Volume 12. (pp. 336-354). Stamford, CT: Ablex Publishing.
  • McQueen, J. M., & Cutler, A. (1998). Morphology in word recognition. In A. M. Zwicky, & A. Spencer (Eds.), The handbook of morphology (pp. 406-427). Oxford: Blackwell.
  • McQueen, J. M., & Cutler, A. (1998). Spotting (different kinds of) words in (different kinds of) context. In R. Mannell, & J. Robert-Ribes (Eds.), Proceedings of the Fifth International Conference on Spoken Language Processing: Vol. 6 (pp. 2791-2794). Sydney: ICSLP.

    Abstract

    The results of a word-spotting experiment are presented in which Dutch listeners tried to spot different types of bisyllabic Dutch words embedded in different types of nonsense contexts. Embedded verbs were not reliably harder to spot than embedded nouns; this suggests that nouns and verbs are recognised via the same basic processes. Iambic words were no harder to spot than trochaic words, suggesting that trochaic words are not in principle easier to recognise than iambic words. Words were harder to spot in consonantal contexts (i.e., contexts which themselves could not be words) than in longer contexts which contained at least one vowel (i.e., contexts which, though not words, were possible words of Dutch). A control experiment showed that this difference was not due to acoustic differences between the words in each context. The results support the claim that spoken-word recognition is sensitive to the viability of sound sequences as possible words.
  • Melnychuk, T., Galke, L., Seidlmayer, E., Förster, K. U., Tochtermann, K., & Schultz, C. (2021). Früherkennung wissenschaftlicher Konvergenz im Hochschulmanagement. Hochschulmanagement, 16(1), 24-28.

    Abstract

    It is crucial for universities to recognize early signals of scientific convergence. Scientific convergence describes a dynamic pattern where the distance between different fields of knowledge shrinks over time. This knowledge
    space is beneficial to radical innovations and new promising research topics. Research in converging areas of knowledge can therefore allow universities to establish a leading position in the science community.
    The Q-AKTIV project develops a new approach on the basis of machine learning to identify scientific convergence at an early stage. In this work, we briefly present this approach and the first results of empirical validation. We discuss the benefits of an instrument building on our approach for the strategic management of universities and
    other research institutes.
  • Menks, W. M., Fehlbaum, L. V., Borbás, R., Sterzer, P., Stadler, C., & Raschle, N. M. (2021). Eye gaze patterns and functional brain responses during emotional face processing in adolescents with conduct disorder. NeuroImage: Clinical, 29: 102519. doi:10.1016/j.nicl.2020.102519.

    Abstract

    Background: Conduct disorder (CD) is characterized by severe aggressive and antisocial behavior. Initial evidence
    suggests neural deficits and aberrant eye gaze pattern during emotion processing in CD; both concepts, however,
    have not yet been studied simultaneously. The present study assessed the functional brain correlates of emotional
    face processing with and without consideration of concurrent eye gaze behavior in adolescents with CD
    compared to typically developing (TD) adolescents.
    Methods: 58 adolescents (23CD/35TD; average age = 16 years/range = 14–19 years) underwent an implicit
    emotional face processing task. Neuroimaging analyses were conducted for a priori-defined regions of interest
    (insula, amygdala, and medial orbitofrontal cortex) and using a full-factorial design assessing the main effects of
    emotion (neutral, anger, fear), group and the interaction thereof (cluster-level, p < .05 FWE-corrected) with and
    without consideration of concurrent eye gaze behavior (i.e., time spent on the eye region).
    Results: Adolescents with CD showed significant hypo-activations during emotional face processing in right
    anterior insula compared to TD adolescents, independent of the emotion presented. In-scanner eye-tracking data
    revealed that adolescents with CD spent significantly less time on the eye, but not mouth region. Correcting for
    eye gaze behavior during emotional face processing reduced group differences previously observed for right
    insula.
    Conclusions: Atypical insula activation during emotional face processing in adolescents with CD may partly be
    explained by attentional mechanisms (i.e., reduced gaze allocation to the eyes, independent of the emotion
    presented). An increased understanding of the mechanism causal for emotion processing deficits observed in CD
    may ultimately aid the development of personalized intervention programs

    Additional information

    1-s2.0-S2213158220303569-mmc1.doc
  • Merkx, D., & Frank, S. L. (2021). Human sentence processing: Recurrence or attention? In E. Chersoni, N. Hollenstein, C. Jacobs, Y. Oseki, L. Prévot, & E. Santus (Eds.), Proceedings of the Workshop on Cognitive Modeling and Computational Linguistics (CMCL 2021) (pp. 12-22). Stroudsburg, PA, USA: Association for Computational Linguistics (ACL). doi:10.18653/v1/2021.cmcl-1.2.

    Abstract

    Recurrent neural networks (RNNs) have long been an architecture of interest for computational models of human sentence processing. The recently introduced Transformer architecture outperforms RNNs on many natural language processing tasks but little is known about its ability to model human language processing. We compare Transformer- and RNN-based language models’ ability to account for measures of human reading effort. Our analysis shows Transformers to outperform RNNs in explaining self-paced reading times and neural activity during reading English sentences, challenging the widely held idea that human sentence processing involves recurrent and immediate processing and provides evidence for cue-based retrieval.
  • Merkx, D., Frank, S. L., & Ernestus, M. (2021). Semantic sentence similarity: Size does not always matter. In Proceedings of Interspeech 2021 (pp. 4393-4397). doi:10.21437/Interspeech.2021-1464.

    Abstract

    This study addresses the question whether visually grounded speech recognition (VGS) models learn to capture sentence semantics without access to any prior linguistic knowledge. We produce synthetic and natural spoken versions of a well known semantic textual similarity database and show that our VGS model produces embeddings that correlate well with human semantic similarity judgements. Our results show that a model trained on a small image-caption database outperforms two models trained on much larger databases, indicating that database size is not all that matters. We also investigate the importance of having multiple captions per image and find that this is indeed helpful even if the total number of images is lower, suggesting that paraphrasing is a valuable learning signal. While the general trend in the field is to create ever larger datasets to train models on, our findings indicate other characteristics of the database can just as important.
  • He, J., Meyer, A. S., Creemers, A., & Brehm, L. (2021). Conducting language production research online: A web-based study of semantic context and name agreement effects in multi-word production. Collabra: Psychology, 7(1): 29935. doi:10.1525/collabra.29935.

    Abstract

    Few web-based experiments have explored spoken language production, perhaps due to concerns of data quality, especially for measuring onset latencies. The present study highlights how speech production research can be done outside of the laboratory by measuring utterance durations and speech fluency in a multiple-object naming task when examining two effects related to lexical selection: semantic context and name agreement. A web-based modified blocked-cyclic naming paradigm was created, in which participants named a total of sixteen simultaneously presented pictures on each trial. The pictures were either four tokens from the same semantic category (homogeneous context), or four tokens from different semantic categories (heterogeneous context). Name agreement of the pictures was varied orthogonally (high, low). In addition to onset latency, five dependent variables were measured to index naming performance: accuracy, utterance duration, total pause time, the number of chunks (word groups pronounced without intervening pauses), and first chunk length. Bayesian analyses showed effects of semantic context and name agreement for some of the dependent measures, but no interaction. We discuss the methodological implications of the current study and make best practice recommendations for spoken language production research in an online environment.
  • He, J., Meyer, A. S., & Brehm, L. (2021). Concurrent listening affects speech planning and fluency: The roles of representational similarity and capacity limitation. Language, Cognition and Neuroscience, 36(10), 1258-1280. doi:10.1080/23273798.2021.1925130.

    Abstract

    In a novel continuous speaking-listening paradigm, we explored how speech planning was affected by concurrent listening. In Experiment 1, Dutch speakers named pictures with high versus low name agreement while ignoring Dutch speech, Chinese speech, or eight-talker babble. Both name agreement and type of auditory input influenced response timing and chunking, suggesting that representational similarity impacts lexical selection and the scope of advance planning in utterance generation. In Experiment 2, Dutch speakers named pictures with high or low name agreement while either ignoring Dutch words, or attending to them for a later memory test. Both name agreement and attention demand influenced response timing and chunking, suggesting that attention demand impacts lexical selection and the planned utterance units in each response. The study indicates that representational similarity and attention demand play important roles in linguistic dual-task interference, and the interference can be managed by adapting when and how to plan speech.

    Additional information

    supplemental material
  • Meyer, A. S., Sleiderink, A. M., & Levelt, W. J. M. (1998). Viewing and naming objects: Eye movements during noun phrase production. Cognition, 66(2), B25-B33. doi:10.1016/S0010-0277(98)00009-2.

    Abstract

    Eye movements have been shown to reflect word recognition and language comprehension processes occurring during reading and auditory language comprehension. The present study examines whether the eye movements speakers make during object naming similarly reflect speech planning processes. In Experiment 1, speakers named object pairs saying, for instance, 'scooter and hat'. The objects were presented as ordinary line drawings or with partly dele:ed contours and had high or low frequency names. Contour type and frequency both significantly affected the mean naming latencies and the mean time spent looking at the objects. The frequency effects disappeared in Experiment 2, in which the participants categorized the objects instead of naming them. This suggests that the frequency effects of Experiment 1 arose during lexical retrieval. We conclude that eye movements during object naming indeed reflect linguistic planning processes and that the speakers' decision to move their eyes from one object to the next is contingent upon the retrieval of the phonological form of the object names.
  • Mickan, A., McQueen, J. M., Valentini, B., Piai, V., & Lemhöfer, K. (2021). Electrophysiological evidence for cross-language interference in foreign-language attrition. Neuropsychologia, 155: 107795. doi:10.1016/j.neuropsychologia.2021.107795.

    Abstract

    Foreign language attrition (FLA) appears to be driven by interference from other, more recently-used languages (Mickan et al., 2020). Here we tracked these interference dynamics electrophysiologically to further our understanding of the underlying processes. Twenty-seven Dutch native speakers learned 70 new Italian words over two days. On a third day, EEG was recorded as they performed naming tasks on half of these words in English and, finally, as their memory for all the Italian words was tested in a picture-naming task. Replicating Mickan et al., recall was slower and tended to be less complete for Italian words that were interfered with (i.e., named in English) than for words that were not. These behavioral interference effects were accompanied by an enhanced frontal N2 and a decreased late positivity (LPC) for interfered compared to not-interfered items. Moreover, interfered items elicited more theta power. We also found an increased N2 during the interference phase for items that participants were later slower to retrieve in Italian. We interpret the N2 and theta effects as markers of interference, in line with the idea that Italian retrieval at final test is hampered by competition from recently practiced English translations. The LPC, in turn, reflects the consequences of interference: the reduced accessibility of interfered Italian labels. Finally, that retrieval ease at final test was related to the degree of interference during previous English retrieval shows that FLA is already set in motion during the interference phase, and hence can be the direct consequence of using other languages.

    Additional information

    data via Donders Repository
  • Mickan, A. (2021). What was that Spanish word again? Investigations into the cognitive mechanisms underlying foreign language attrition. PhD Thesis, Radboud University Nijmegen, Nijmegen.
  • Misersky, J., Slivac, K., Hagoort, P., & Flecken, M. (2021). The State of the Onion: Grammatical aspect modulates object representation during event comprehension. Cognition, 214: 104744. doi:10.1016/j.cognition.2021.104744.

    Abstract

    The present ERP study assessed whether grammatical aspect is used as a cue in online event comprehension, in particular when reading about events in which an object is visually changed. While perfective aspect cues holistic event representations, including an event's endpoint, progressive aspect highlights intermediate phases of an event. In a 2 × 3 design, participants read SVO sentences describing a change-of-state event (e.g., to chop an onion), with grammatical Aspect manipulated (perfective “chopped” vs progressive “was chopping”). Thereafter, they saw a Picture of an object either having undergone substantial state-change (SC; a chopped onion), no state-change (NSC; an onion in its original state) or an unrelated object (U; a cactus, acting as control condition). Their task was to decide whether the object in the Picture was mentioned in the sentence. We focused on N400 modulation, with ERPs time-locked to picture onset. U pictures elicited an N400 response as expected, suggesting detection of categorical mismatches in object type. For SC and NSC pictures, a whole-head follow-up analysis revealed a P300, implying people were engaged in detailed evaluation of pictures of matching objects. SC pictures received most positive responses overall. Crucially, there was an interaction of Aspect and Picture: SC pictures resulted in a higher amplitude P300 after sentences in the perfective compared to the progressive. Thus, while the perfective cued for a holistic event representation, including the resultant state of the affected object (i.e., the chopped onion) constraining object representations online, the progressive defocused event completion and object-state change. Grammatical aspect thus guided online event comprehension by cueing the visual representation(s) of an object's state.
  • Misra, S. (2021). Real-time dynamic fur and hair simulation using verlet integration. International Journal of Scientific and Research Publication (IJSRP), 11(2), 444-450. doi:10.29322/IJSRP.11.02.2021.p11053.

    Abstract

    Throughout the history of game development, the physics behind the real-time hair simulation has continued to pose a challenge due to lack of availability of computational resources required by the system. Unlike rendering an animation, where the requirement of real-time simulation is absent, game hair physics needs more efficiency when it comes to utilization of computational resources. Generally, for making a hair strand mesh, a cylinder or a capsule mesh is an obvious choice despite its requirement of a higher number of draw calls or resources. This paper proposes the use of an innovative and highly efficient use of quad polygons, whose normals face the render in conjunction with the use of Verlet integration, which delivers optimal results by keeping the frames per second (FPS) stable. Additionally, the proposed physics also allows for physical forces, such as gravity and wind, to affect hair movement as well as simulate a natural curl in the hair strand.
  • Montero-Melis, G. (2021). Consistency in motion event encoding across languages. Frontiers in Psychology, 12: 625153. doi:10.3389/fpsyg.2021.625153.

    Abstract

    Syntactic templates serve as schemas, allowing speakers to describe complex events in a systematic fashion. Motion events have long served as a prime example of how different languages favor different syntactic frames, in turn biasing their speakers towards different event conceptualizations. However, there is also variability in how motion events are syntactically framed within languages. Here we measure the consistency in event encoding in two languages, Spanish and Swedish. We test a dominant account in the literature, namely that variability within a language can be explained by specific properties of the events. This event-properties account predicts that descriptions of one and the same event should be consistent within a language, even in languages where there is overall variability in the use of syntactic frames. Spanish and Swedish speakers (N=84) described 32 caused motion events. While the most frequent syntactic framing in each language was as expected based on typology (Spanish: verb-framed, Swedish: satellite-framed, cf. Talmy, 2000), Swedish descriptions were substantially more consistent than Spanish descriptions. Swedish speakers almost invariably encoded all events with a single syntactic frame and systematically conveyed manner of motion. Spanish descriptions, in contrast, varied much more regarding syntactic framing and expression of manner. Crucially, variability in Spanish descriptions was not mainly a function of differences between events, as predicted by the event-properties account. Rather, Spanish variability in syntactic framing was driven by speaker biases. A similar picture arose for whether Spanish descriptions expressed manner information or not: Even after accounting for the effect of syntactic choice, a large portion of the variance in Spanish manner encoding remained attributable to differences among speakers. The results show that consistency in motion event encoding starkly differs across languages: Some languages (like Swedish) bias their speakers towards a particular linguistic event schema much more than others (like Spanish). Implications of these findings are discussed with respect to the typology of event framing, theories on the relationship between language and thought, and speech planning. In addition, the tools employed here to quantify variability can be applied to other domains of language.

    Additional information

    data and analysis scripts
  • Moreno Santillán, D. D., Lama, T. M., Gutierrez Guerrero, Y. T., Brown, A. M., Donat, P., Zhao, H., Rossiter, S. J., Yohe, L. R., Potter, J. H., Teeling, E. C., Vernes, S. C., Davies, K. T. J., Myers, E., Hughes, G. M., Huang, Z., Hoffmann, F., Corthals, A. P., Ray, D. A., & Dávalos, L. M. (2021). Large‐scale genome sampling reveals unique immunity and metabolic adaptations in bats. Molecular Ecology, 30(23), 6449-6467. doi:10.1111/mec.16027.

    Abstract

    Comprising more than 1,400 species, bats possess adaptations unique among mammals including powered flight, unexpected longevity, and extraordinary immunity. Some of the molecular mechanisms underlying these unique adaptations includes DNA repair, metabolism and immunity. However, analyses have been limited to a few divergent lineages, reducing the scope of inferences on gene family evolution across the Order Chiroptera. We conducted an exhaustive comparative genomic study of 37 bat species, one generated in this study, encompassing a large number of lineages, with a particular emphasis on multi-gene family evolution across immune and metabolic genes. In agreement with previous analyses, we found lineage-specific expansions of the APOBEC3 and MHC-I gene families, and loss of the proinflammatory PYHIN gene family. We inferred more than 1,000 gene losses unique to bats, including genes involved in the regulation of inflammasome pathways such as epithelial defense receptors, the natural killer gene complex and the interferon-gamma induced pathway. Gene set enrichment analyses revealed genes lost in bats are involved in defense response against pathogen-associated molecular patterns and damage-associated molecular patterns. Gene family evolution and selection analyses indicate bats have evolved fundamental functional differences compared to other mammals in both innate and adaptive immune system, with the potential to enhance anti-viral immune response while dampening inflammatory signaling. In addition, metabolic genes have experienced repeated expansions related to convergent shifts to plant-based diets. Our analyses support the hypothesis that, in tandem with flight, ancestral bats had evolved a unique set of immune adaptations whose functional implications remain to be explored.

    Additional information

    supplementary material table S1-S18
  • Morgan, A., Braden, R., Wong, M. M. K., Colin, E., Amor, D., Liégeois, F., Srivastava, S., Vogel, A., Bizaoui, V., Ranguin, K., Fisher, S. E., & Van Bon, B. W. (2021). Speech and language deficits are central to SETBP1 haploinsufficiency disorder. European Journal of Human Genetics, 29, 1216-1225. doi:10.1038/s41431-021-00894-x.

    Abstract

    Expressive communication impairment is associated with haploinsufficiency of SETBP1, as reported in small case series. Heterozygous pathogenic loss-of-function (LoF) variants in SETBP1 have also been identified in independent cohorts ascertained for childhood apraxia of speech (CAS), warranting further investigation of the roles of this gene in speech development. Thirty-one participants (12 males, aged 0; 8–23; 2 years, 28 with pathogenic SETBP1 LoF variants, 3 with 18q12.3 deletions) were assessed for speech, language and literacy abilities. Broader development was examined with standardised motor, social and daily life skills assessments. Gross and fine motor deficits (94%) and intellectual impairments (68%) were common. Protracted and aberrant speech development was consistently seen, regardless of motor or intellectual ability. We expand the linguistic phenotype associated with SETBP1 LoF syndrome (SETBP1 haploinsufficiency disorder), revealing a striking speech presentation that implicates both motor (CAS, dysarthria) and language (phonological errors) systems, with CAS (80%) being the most common diagnosis. In contrast to past reports, the understanding of language was rarely better preserved than language expression (29%). Language was typically low, to moderately impaired, with commensurate expression and comprehension ability. Children were sociable with a strong desire to communicate. Minimally verbal children (32%) augmented speech with sign language, gestures or digital devices. Overall, relative to general development, spoken language and literacy were poorer than social, daily living, motor and adaptive behaviour skills. Our findings show that poor communication is a central feature of SETBP1 haploinsufficiency disorder, confirming this gene as a strong candidate for speech and language disorders.

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