Publications

Displaying 201 - 300 of 1070
  • Damian, M. F., & Abdel Rahman, R. (2003). Semantic priming in the naming of objects and famous faces. British Journal of Psychology, 94(4), 517-527.

    Abstract

    Researchers interested in face processing have recently debated whether access to the name of a known person occurs in parallel with retrieval of semantic-biographical codes, rather than in a sequential fashion. Recently, Schweinberger, Burton, and Kelly (2001) took a failure to obtain a semantic context effect in a manual syllable judgment task on names of famous faces as support for this position. In two experiments, we compared the effects of visually presented categorically related prime words with either objects (e.g. prime: animal; target: dog) or faces of celebrities (e.g. prime: actor; target: Bruce Willis) as targets. Targets were either manually categorized with regard to the number of syllables (as in Schweinberger et al.), or they were overtly named. For neither objects nor faces was semantic priming obtained in syllable decisions; crucially, however, priming was obtained when objects and faces were overtly named. These results suggest that both face and object naming are susceptible to semantic context effects
  • Davidson, D. J. (2006). Strategies for longitudinal neurophysiology [commentary on Osterhout et al.]. Language Learning, 56(suppl. 1), 231-234. doi:10.1111/j.1467-9922.2006.00362.x.
  • Davis, M. H., Johnsrude, I. S., Hervais-Adelman, A., Taylor, K., & McGettigan, C. (2005). Lexical information drives perceptual learning of distorted speech: Evidence from the comprehension of noise-vocoded sentences. Journal of Experimental Psychology-General, 134(2), 222-241. doi:10.1037/0096-3445.134.2.222.

    Abstract

    Speech comprehension is resistant to acoustic distortion in the input, reflecting listeners' ability to adjust perceptual processes to match the speech input. For noise-vocoded sentences, a manipulation that removes spectral detail from speech, listeners' reporting improved from near 0% to 70% correct over 30 sentences (Experiment 1). Learning was enhanced if listeners heard distorted sentences while they knew the identity of the undistorted target (Experiments 2 and 3). Learning was absent when listeners were trained with nonword sentences (Experiments 4 and 5), although the meaning of the training sentences did not affect learning (Experiment 5). Perceptual learning of noise-vocoded speech depends on higher level information, consistent with top-down, lexically driven learning. Similar processes may facilitate comprehension of speech in an unfamiliar accent or following cochlear implantation.
  • Declerck, T., Cunningham, H., Saggion, H., Kuper, J., Reidsma, D., & Wittenburg, P. (2003). MUMIS - Advanced information extraction for multimedia indexing and searching digital media - Processing for multimedia interactive services. 4th European Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), 553-556.
  • Dediu, D. (2006). Mostly out of Africa, but what did the others have to say? In A. Cangelosi, A. D. Smith, & K. Smith (Eds.), The evolution of language: proceedings of the 6th International Conference (EVOLANG6) (pp. 59-66). World Scientific.

    Abstract

    The Recent Out-of-Africa human evolutionary model seems to be generally accepted. This impression is very prevalent outside palaeoanthropological circles (including studies of language evolution), but proves to be unwarranted. This paper offers a short review of the main challenges facing ROA and concludes that alternative models based on the concept of metapopulation must be also considered. The implications of such a model for language evolution and diversity are briefly reviewed.
  • Den Os, E., & Boves, L. (2004). Natural multimodal interaction for design applications. In P. Cunningham (Ed.), Adoption and the knowledge economy (pp. 1403-1410). Amsterdam: IOS Press.
  • Desmet, T., De Baecke, C., Drieghe, D., Brysbaert, M., & Vonk, W. (2006). Relative clause attachment in Dutch: On-line comprehension corresponds to corpus frequencies when lexical variables are taken into account. Language and Cognitive Processes, 21(4), 453-485. doi:10.1080/01690960400023485.

    Abstract

    Desmet, Brysbaert, and De Baecke (2002a) showed that the production of relative clauses following two potential attachment hosts (e.g., ‘Someone shot the servant of the actress who was on the balcony’) was influenced by the animacy of the first host. These results were important because they refuted evidence from Dutch against experience-based accounts of syntactic ambiguity resolution, such as the tuning hypothesis. However, Desmet et al. did not provide direct evidence in favour of tuning, because their study focused on production and did not include reading experiments. In the present paper this line of research was extended. A corpus analysis and an eye-tracking experiment revealed that when taking into account lexical properties of the NP host sites (i.e., animacy and concreteness) the frequency pattern and the on-line comprehension of the relative clause attachment ambiguity do correspond. The implications for exposure-based accounts of sentence processing are discussed.
  • Dietrich, C. (2006). The acquisition of phonological structure: Distinguishing contrastive from non-contrastive variation. PhD Thesis, Radboud University Nijmegen, Nijmegen. doi:10.17617/2.57829.
  • Dijkstra, T., Moscoso del Prado Martín, F., Schulpen, B., Schreuder, R., & Baayen, R. H. (2005). A roommate in cream: Morphological family size effects on interlingual homograph recognition. Language and Cognitive Processes, 20, 7-41. doi:10.1080/01690960444000124.
  • Dijkstra, T., & Kempen, G. (1984). Taal in uitvoering: Inleiding tot de psycholinguistiek. Groningen: Wolters-Noordhoff.
  • Dimitriadis, A., Kemps-Snijders, M., Wittenburg, P., Everaert, M., & Levinson, S. C. (2006). Towards a linguist's workbench supporting eScience methods. In Proceedings of the 2nd IEEE International Conference on e-Science and Grid Computing.
  • Dimroth, C., & Lindner, K. (2005). Was langsame Lerner uns zeigen können: der Erwerb der Finitheit im Deutschen durch einsprachige Kinder mit spezifischen Sprachentwicklungsstörung und durch Zweit-sprach-lerner. Zeitschrift für Literaturwissenschaft und Linguistik, 140, 40-61.
  • Dimroth, C., & Watorek, M. (2005). Additive scope particles in advanced learner and native speaker discourse. In Hendriks, & Henriëtte (Eds.), The structure of learner varieties (pp. 461-488). Berlin: Mouton de Gruyter.
  • Dimroth, C., & Starren, M. (Eds.). (2003). Information structure and the dynamics of language acquisition. Amsterdam: John Benjamins.

    Abstract

    The papers in this volume focus on the impact of information structure on language acquisition, thereby taking different linguistic approaches into account. They start from an empirical point of view, and examine data from natural first and second language acquisition, which cover a wide range of varieties, from early learner language to native speaker production and from gesture to Creole prototypes. The central theme is the interplay between principles of information structure and linguistic structure and its impact on the functioning and development of the learner's system. The papers examine language-internal explanatory factors and in particular the communicative and structural forces that push and shape the acquisition process, and its outcome. On the theoretical level, the approach adopted appeals both to formal and communicative constraints on a learner’s language in use. Two empirical domains provide a 'testing ground' for the respective weight of grammatical versus functional determinants in the acquisition process: (1) the expression of finiteness and scope relations at the utterance level and (2) the expression of anaphoric relations at the discourse level.
  • Dimroth, C., Gretsch, P., Jordens, P., Perdue, C., & Starren, M. (2003). Finiteness in Germanic languages: A stage-model for first and second language development. In C. Dimroth, & M. Starren (Eds.), Information structure and the dynamics of language acquisition (pp. 65-94). Amsterdam: Benjamins.
  • Dimroth, C. (2004). Fokuspartikeln und Informationsgliederung im Deutschen. Tübingen: Stauffenburg.
  • Dimroth, C., & Starren, M. (2003). Introduction. In C. Dimroth, & M. Starren (Eds.), Information structure and the dynamics of language acquisition (pp. 1-14). Amsterdam: John Benjamins.
  • Dingemanse, M. (2006). The semantics of Bantu noun classification: A review and comparison of three approaches. Master Thesis, Leiden University.
  • Dingemanse, M. (2006). The body in Yoruba: A linguistic study. Master Thesis, Leiden University, Leiden.
  • Dirksmeyer, T. (2005). Why do languages die? Approaching taxonomies, (re-)ordering causes. In J. Wohlgemuth, & T. Dirksmeyer (Eds.), Bedrohte Vielfalt. Aspekte des Sprach(en)tods – Aspects of language death (pp. 53-68). Berlin: Weißensee.

    Abstract

    Under what circumstances do languages die? Why has their “mortality rate” increased dramatically in the recent past? What “causes of death” can be identified for historical cases, to what extent are these generalizable, and how can they be captured in an explanatory theory? In pursuing these questions, it becomes apparent that in typical cases of language death various causes tend to interact in multiple ways. Speakers’ attitudes towards their language play a critical role in all of this. Existing categorial taxonomies do not succeed in modeling the complex relationships between these factors. Therefore, an alternative, dimensional approach is called for to more adequately address (and counter) the causes of language death in a given scenario.
  • Dronkers, N. F., Wilkins, D. P., Van Valin Jr., R. D., Redfern, B. B., & Jaeger, J. J. (2004). Lesion analysis of the brain areas involved in language comprehension. Cognition, 92, 145-177. doi:10.1016/j.cognition.2003.11.002.

    Abstract

    The cortical regions of the brain traditionally associated with the comprehension of language are Wernicke's area and Broca's area. However, recent evidence suggests that other brain regions might also be involved in this complex process. This paper describes the opportunity to evaluate a large number of brain-injured patients to determine which lesioned brain areas might affect language comprehension. Sixty-four chronic left hemisphere stroke patients were evaluated on 11 subtests of the Curtiss–Yamada Comprehensive Language Evaluation – Receptive (CYCLE-R; Curtiss, S., & Yamada, J. (1988). Curtiss–Yamada Comprehensive Language Evaluation. Unpublished test, UCLA). Eight right hemisphere stroke patients and 15 neurologically normal older controls also participated. Patients were required to select a single line drawing from an array of three or four choices that best depicted the content of an auditorily-presented sentence. Patients' lesions obtained from structural neuroimaging were reconstructed onto templates and entered into a voxel-based lesion-symptom mapping (VLSM; Bates, E., Wilson, S., Saygin, A. P., Dick, F., Sereno, M., Knight, R. T., & Dronkers, N. F. (2003). Voxel-based lesion-symptom mapping. Nature Neuroscience, 6(5), 448–450.) analysis along with the behavioral data. VLSM is a brain–behavior mapping technique that evaluates the relationships between areas of injury and behavioral performance in all patients on a voxel-by-voxel basis, similar to the analysis of functional neuroimaging data. Results indicated that lesions to five left hemisphere brain regions affected performance on the CYCLE-R, including the posterior middle temporal gyrus and underlying white matter, the anterior superior temporal gyrus, the superior temporal sulcus and angular gyrus, mid-frontal cortex in Brodmann's area 46, and Brodmann's area 47 of the inferior frontal gyrus. Lesions to Broca's and Wernicke's areas were not found to significantly alter language comprehension on this particular measure. Further analysis suggested that the middle temporal gyrus may be more important for comprehension at the word level, while the other regions may play a greater role at the level of the sentence. These results are consistent with those seen in recent functional neuroimaging studies and offer complementary data in the effort to understand the brain areas underlying language comprehension.
  • Drude, S. (2005). A contribuição alemã à Lingüística e Antropologia dos índios do Brasil, especialmente da Amazônia. In J. J. A. Alves (Ed.), Múltiplas Faces da Históriadas Ciência na Amazônia (pp. 175-196). Belém: EDUFPA.
  • Drude, S. (2003). Advanced glossing: A language documentation format and its implementation with Shoebox. In Proceedings of the 2002 International Conference on Language Resources and Evaluation (LREC 2002). Paris: ELRA.

    Abstract

    This paper presents Advanced Glossing, a proposal for a general glossing format designed for language documentation, and a specific setup for the Shoebox-program that implements Advanced Glossing to a large extent. Advanced Glossing (AG) goes beyond the traditional Interlinear Morphemic Translation, keeping syntactic and morphological information apart from each other in separate glossing tables. AG provides specific lines for different kinds of annotation – phonetic, phonological, orthographical, prosodic, categorial, structural, relational, and semantic, and it allows for gradual and successive, incomplete, and partial filling in case that some information may be irrelevant, unknown or uncertain. The implementation of AG in Shoebox sets up several databases. Each documented text is represented as a file of syntactic glossings. The morphological glossings are kept in a separate database. As an additional feature interaction with lexical databases is possible. The implementation makes use of the interlinearizing automatism provided by Shoebox, thus obtaining the table format for the alignment of lines in cells, and for semi-automatic filling-in of information in glossing tables which has been extracted from databases
  • Drude, S. (2006). Documentação lingüística: O formato de anotação de textos. Cadernos de Estudos Lingüísticos, 35, 27-51.

    Abstract

    This paper presents the methods of language documentation as applied in the Awetí Language Documentation Project, one of the projects in the Documentation of Endangered Languages Programme (DOBES). It describes the steps of how a large digital corpus of annotated multi-media data is built. Special attention is devoted to the format of annotation of linguistic data. The Advanced Glossing format is presented and justified
  • Drude, S. (2003). Digitizing and annotating texts and field recordings in the Awetí project. In Proceedings of the EMELD Language Digitization Project Conference 2003. Workshop on Digitizing and Annotating Text and Field Recordings, LSA Institute, Michigan State University, July 11th -13th.

    Abstract

    Digitizing and annotating texts and field recordings Given that several initiatives worldwide currently explore the new field of documentation of endangered languages, the E-MELD project proposes to survey and unite procedures, techniques and results in order to achieve its main goal, ''the formulation and promulgation of best practice in linguistic markup of texts and lexicons''. In this context, this year's workshop deals with the processing of recorded texts. I assume the most valuable contribution I could make to the workshop is to show the procedures and methods used in the Awetí Language Documentation Project. The procedures applied in the Awetí Project are not necessarily representative of all the projects in the DOBES program, and they may very well fall short in several respects of being best practice, but I hope they might provide a good and concrete starting point for comparison, criticism and further discussion. The procedures to be exposed include: * taping with digital devices, * digitizing (preliminarily in the field, later definitely by the TIDEL-team at the Max Planck Institute in Nijmegen), * segmenting and transcribing, using the transcriber computer program, * translating (on paper, or while transcribing), * adding more specific annotation, using the Shoebox program, * converting the annotation to the ELAN-format developed by the TIDEL-team, and doing annotation with ELAN. Focus will be on the different types of annotation. Especially, I will present, justify and discuss Advanced Glossing, a text annotation format developed by H.-H. Lieb and myself designed for language documentation. It will be shown how Advanced Glossing can be applied using the Shoebox program. The Shoebox setup used in the Awetí Project will be shown in greater detail, including lexical databases and semi-automatic interaction between different database types (jumping, interlinearization). ( Freie Universität Berlin and Museu Paraense Emílio Goeldi, with funding from the Volkswagen Foundation.)
  • Drude, S. (2006). On the position of the Awetí language in the Tupí family. In W. Dietrich, & H. Symeonidis (Eds.), Guarani y "Maweti-Tupi-Guarani. Estudios historicos y descriptivos sobre una familia lingüistica de America del Sur (pp. 11-45). Berlin: LIT Verlag.

    Abstract

    Conclusion In this study we have examined the evidence for the exact genetic position of the Awetí language in the large Tupí family, especially evidence for an internal classification of the larger branch of Tupí called “Mawetí-Guaraní” which comprises the Tupí-Guaraní family, Awetí and Sateré-Mawé. As it turns out, we did not find any clear example of an uncommon sound change which would have happened after the separation of the antecessor of one branch but before the split between the other two. There is some just probability that Awetí belongs somewhat closer to Tupí-Guaraní within Mawetí-Guaraní (configuration A in Table 1), but we did not find any conclusive evidence. All we have are some weak indications the majority of which, however, point in this direction: • a higher number of cognates found between Awetí and proto-Tupí-Guarani; • lexicostatistic results (number of cognates in a 100-item-word-list proposed by Swadesh); • loss of long vowels in Awetí and Tupí-Guaraní, but not in Sateré-Mawé; • some sound changes suggest that in the development to Awetí and to proto-Tupí-Guaraní velar segments changes to dental segments (cf. the discussion of the correspondence set j : t : w); • possibly some of the correspondence sets given in Table 20. We consider it to be too soon to conclude that there is a branch Awetí + Tupí-Guaraní of Mawetí-Guaraní, opposed to Sateré-Mawé, but if there is any grouping, this hypothesis is most promising. 29
  • Drude, S. (2004). Wörterbuchinterpretation: Integrative Lexikographie am Beispiel des Guaraní. Tübingen: Niemeyer.

    Abstract

    This study provides an answer to the question of how dictionaries should be read. For this purpose, articles taken from an outline for a Guaraní-German dictionary geared to established lexicographic practice are provided with standardized interpretations. Each article is systematically assigned a formal sentence making its meaning explicit both for content words (including polysemes) and functional words or affixes. Integrative Linguistics proves its theoretical and practical value both for the description of Guaraní (indigenous Indian language spoken in Paraguay, Argentina and Brazil) and in metalexicographic terms.
  • Duffield, N., & Matsuo, A. (2003). Factoring out the parallelism effect in ellipsis: An interactional approach? In J. Chilar, A. Franklin, D. Keizer, & I. Kimbara (Eds.), Proceedings of the 39th Annual Meeting of the Chicago Linguistic Society (CLS) (pp. 591-603). Chicago: Chicago Linguistics Society.

    Abstract

    Traditionally, there have been three standard assumptions made about the Parallelism Effect on VP-ellipsis, namely that the effect is categorical, that it applies asymmetrically and that it is uniquely due to syntactic factors. Based on the results of a series of experiments involving online and offline tasks, it will be argued that the Parallelism Effect is instead noncategorical and interactional. The factors investigated include construction type, conceptual and morpho-syntactic recoverability, finiteness and anaphor type (to test VP-anaphora). The results show that parallelism is gradient rather than categorical, effects both VP-ellipsis and anaphora, and is influenced by both structural and non-structural factors.
  • Dunn, M., Terrill, A., Reesink, G., Foley, R. A., & Levinson, S. C. (2005). Structural phylogenetics and the reconstruction of ancient language history. Science, 309(5743), 2072-2075. doi:10.1126/science.1114615.
  • Dunn, M. (2003). Pioneers of Island Melanesia project. Oceania Newsletter, 30/31, 1-3.
  • Dunn, M. (2006). [Review of the book Comparative Chukotko-Kamchatkan dictionary by Michael Fortescue]. Anthropological Linguistics, 48(3), 296-298.
  • Dunn, M., & Terrill, A. (2004). Lexical comparison between Papuan languages: Inland bird and tree species. In A. Majid (Ed.), Field Manual Volume 9 (pp. 65-69). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.492942.

    Abstract

    The Pioneers project seeks to uncover relationships between the Papuan languages of Island Melanesia. One basic way to uncover linguistic relationships, either contact or genetic, is through lexical comparison. We have seen very few shared words between our Papuan languages and any other languages, either Oceanic or Papuan, but most of the words which are shared are shared because they are commonly borrowed from Oceanic languages. This task is aimed at enabling fieldworkers to collect terms for inland bird and tree species. In the past it is has proved very difficult for non-experts to identify plant and bird species, so the task consists of a booklet of colour pictures of some of the more common species, with information on the range and habits of each species, as well as some information on their cultural uses, which should enable better identification. It is intended that fieldworkers will show this book to consultants and use it as an elicitation aid.
  • Dunn, M., Levinson, S. C., Lindström, E., Reesink, G., & Terrill, A. (2003). Island Melanesia elicitation materials. Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.885547.

    Abstract

    The Island Melanesia project was initiated to collect data on the little-known Papuan languages of Island Melanesia, and to explore the origins of and relationships between these languages. The project materials from the 2003 field season focus on language related to cultural domains (e.g., material culture) and on targeted grammatical description. Five tasks are included: Proto-Oceanic lexicon, Grammatical questionnaire and lexicon, Kinship questionnaire, Domains of likely pre-Austronesian terminology, and Botanical collection questionnaire.
  • Eisner, F., & McQueen, J. M. (2006). Perceptual learning in speech: Stability over time (L). Journal of the Acoustical Society of America, 119(4), 1950-1953. doi:10.1121/1.2178721.

    Abstract

    Perceptual representations of phonemes are flexible and adapt rapidly to accommodate idiosyncratic articulation in the speech of a particular talker. This letter addresses whether such adjustments remain stable over time and under exposure to other talkers. During exposure to a story, listeners learned to interpret an ambiguous sound as [f] or [s]. Perceptual adjustments measured after 12 h were as robust as those measured immediately after learning. Equivalent effects were found when listeners heard speech from other talkers in the 12 h interval, and when they had the opportunity to consolidate learning during sleep.
  • Eisner, F., & McQueen, J. M. (2005). The specificity of perceptual learning in speech processing. Perception & Psychophysics, 67(2), 224-238.

    Abstract

    We conducted four experiments to investigate the specificity of perceptual adjustments made to unusual speech sounds. Dutch listeners heard a female talker produce an ambiguous fricative [?] (between [f] and [s]) in [f]- or [s]-biased lexical contexts. Listeners with [f]-biased exposure (e.g., [witlo?]; from witlof, “chicory”; witlos is meaningless) subsequently categorized more sounds on an [εf]–[εs] continuum as [f] than did listeners with [s]-biased exposure. This occurred when the continuum was based on the exposure talker's speech (Experiment 1), and when the same test fricatives appeared after vowels spoken by novel female and male talkers (Experiments 1 and 2). When the continuum was made entirely from a novel talker's speech, there was no exposure effect (Experiment 3) unless fricatives from that talker had been spliced into the exposure talker's speech during exposure (Experiment 4). We conclude that perceptual learning about idiosyncratic speech is applied at a segmental level and is, under these exposure conditions, talker specific.
  • Eisner, F. (2006). Lexically-guided perceptual learning in speech processing. PhD Thesis, Radboud University Nijmegen, Nijmegen. doi:10.17617/2.57407.

    Abstract

    During listening to spoken language, the perceptual system needs to adapt frequently to changes in talkers, and thus to considerable interindividual variability in the articulation of a given speech sound. This thesis investigated a learning process which allows listeners to use stored lexical representations to modify the interpretation of a speech sound when a talker's articulation of that sound is consistently unclear or ambiguous. The questions that were addressed in this research concerned the robustness of such perceptual learning, a potential role for sleep, and whether learning is specific to the speech of one talker or, alternatively, generalises to other talkers. A further study aimed to identify the underlying functional neuroanatomy by using magnetic resonance imaging methods. The picture that emerged for lexically-guided perceptual learning is that learning occurs very rapidly, is highly specific, and remains remarkably robust both over time and under exposure to speech from other talkers.

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    full text via Radboud Repository
  • Enfield, N. J. (2006). Social consequences of common ground. In N. J. Enfield, & S. C. Levinson (Eds.), Roots of human sociality: Culture, cognition and interaction (pp. 399-430). Oxford: Berg.
  • Enfield, N. J., & Levinson, S. C. (Eds.). (2006). Roots of human sociality: Culture, cognition and interaction. Oxford: Berg.
  • Enfield, N. J. (2003). Producing and editing diagrams using co-speech gesture: Spatializing non-spatial relations in explanations of kinship in Laos. Journal of Linguistic Anthropology, 13(1), 7-50. doi:10.1525/jlin.2003.13.1.7.

    Abstract

    This article presents a description of two sequences of talk by urban speakers of Lao (a southwestern Tai language spoken in Laos) in which co-speech gesture plays a central role in explanations of kinship relations and terminology. The speakers spontaneously use hand gestures and gaze to spatially diagram relationships that have no inherent spatial structure. The descriptive sections of the article are prefaced by a discussion of the semiotic complexity of illustrative gestures and gesture diagrams. Gestured signals feature iconic, indexical, and symbolic components, usually in combination, as well as using motion and three-dimensional space to convey meaning. Such diagrams show temporal persistence and structural integrity despite having been projected in midair by evanescent signals (i.e., handmovements anddirected gaze). Speakers sometimes need or want to revise these spatial representations without destroying their structural integrity. The need to "edit" gesture diagrams involves such techniques as hold-and-drag, hold-and-work-with-free-hand, reassignment-of-old-chunk-tonew-chunk, and move-body-into-new-space.
  • Enfield, N. J. (2004). On linear segmentation and combinatorics in co-speech gesture: A symmetry-dominance construction in Lao fish trap descriptions. Semiotica, 149(1/4), 57-123. doi:10.1515/semi.2004.038.
  • Enfield, N. J. (2003). The definition of WHAT-d'you-call-it: Semantics and pragmatics of 'recognitional deixis'. Journal of Pragmatics, 35(1), 101-117. doi:10.1016/S0378-2166(02)00066-8.

    Abstract

    Words such as what -d'you-call-it raise issues at the heart of the semantics/pragmatics interface. Expressions of this kind are conventionalised and have meanings which, while very general, are explicitly oriented to the interactional nature of the speech context, drawing attention to a speaker's assumption that the listener can figure out what the speaker is referring to. The details of such meanings can account for functional contrast among similar expressions, in a single language as well as cross-linguistically. The English expressions what -d'you-call-it and you-know-what are compared, along with a comparable Lao expression meaning, roughly, ‘that thing’. Proposed definitions of the meanings of these expressions account for their different patterns of use. These definitions include reference to the speech act participants, a point which supports the view that what -d'you-call-it words can be considered deictic. Issues arising from the descriptive section of this paper include the question of how such terms are derived, as well as their degree of conventionality.
  • Enfield, N. J. (2005). The body as a cognitive artifact in kinship representations: Hand gesture diagrams by speakers of Lao. Current Anthropology, 46(1), 51-81.

    Abstract

    Central to cultural, social, and conceptual life are cognitive arti-facts, the perceptible structures which populate our world and mediate our navigation of it, complementing, enhancing, and altering available affordances for the problem-solving challenges of everyday life. Much work in this domain has concentrated on technological artifacts, especially manual tools and devices and the conceptual and communicative tools of literacy and diagrams. Recent research on hand gestures and other bodily movements which occur during speech shows that the human body serves a number of the functions of "cognitive technologies," affording the special cognitive advantages claimed to be associated exclusively with enduring (e.g., printed or drawn) diagrammatic representations. The issue is explored with reference to extensive data from video-recorded interviews with speakers of Lao in Vientiane, Laos, which show integration of verbal descriptions with complex spatial representations akin to diagrams. The study has implications both for research on cognitive artifacts (namely, that the body is a visuospatial representational resource not to be overlooked) and for research on ethnogenealogical knowledge (namely, that hand gestures reveal speakers' conceptualizations of kinship structure which are of a different nature to and not necessarily retrievable from the accompanying linguistic code).
  • Enfield, N. J., Levinson, S. C., De Ruiter, J. P., & Stivers, T. (2004). Building a corpus of multimodal interaction in your field site. In A. Majid (Ed.), Field Manual Volume 9 (pp. 32-36). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.506951.

    Abstract

    This Field Manual entry has been superceded by the 2007 version:
    https://doi.org/10.17617/2.468728

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  • Enfield, N. J. (2003). “Fish traps” task. In N. J. Enfield (Ed.), Field research manual 2003, part I: Multimodal interaction, space, event representation (pp. 31). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.877616.

    Abstract

    This task is designed to elicit virtual 3D ‘models’ created in gesture space using iconic and other representational gestures. This task has been piloted with Lao speakers, where two speakers were asked to explain the meaning of terms referring to different kinds of fish trap mechanisms. The task elicited complex performances involving a range of iconic gestures, and with especially interesting use of (a) the ‘model/diagram’ in gesture space as a virtual object, (b) the non-dominant hand as a prosodic/semiotic anchor, (c) a range of different techniques (indexical and iconic) for evoking meaning with the hand, and (d) the use of nearby objects and parts of the body as semiotic ‘props’.
  • Enfield, N. J., Majid, A., & Van Staden, M. (2006). Cross-linguistic categorisation of the body: Introduction. Language Sciences, 28(2-3), 137-147. doi:10.1016/j.langsci.2005.11.001.

    Abstract

    The domain of the human body is an ideal focus for semantic typology, since the body is a physical universal and all languages have terms referring to its parts. Previous research on body part terms has depended on secondary sources (e.g. dictionaries), and has lacked sufficient detail or clarity for a thorough understanding of these terms’ semantics. The present special issue is the outcome of a collaborative project aimed at improving approaches to investigating the semantics of body part terms, by developing materials to elicit information that provides for cross-linguistic comparison. The articles in this volume are original fieldwork-based descriptions of terminology for parts of the body in ten languages. Also included are an elicitation guide and experimental protocol used in gathering data. The contributions provide inventories of body part terms in each language, with analysis of both intensional and extensional aspects of meaning, differences in morphological complexity, semantic relations among terms, and discussion of partonomic structure within the domain.
  • Enfield, N. J. (2006). Elicitation guide on parts of the body. Language Sciences, 28(2-3), 148-157. doi:10.1016/j.langsci.2005.11.003.

    Abstract

    This document is intended for use as an elicitation guide for the field linguist consulting with native speakers in collecting terms for parts of the body, and in the exploration of their semantics.
  • Enfield, N. J. (2003). Demonstratives in space and interaction: Data from Lao speakers and implications for semantic analysis. Language, 79(1), 82-117.

    Abstract

    The semantics of simple (i.e. two-term) systems of demonstratives have in general hitherto been treated as inherently spatial and as marking a symmetrical opposition of distance (‘proximal’ versus ‘distal’), assuming the speaker as a point of origin. More complex systems are known to add further distinctions, such as visibility or elevation, but are assumed to build on basic distinctions of distance. Despite their inherently context-dependent nature, little previous work has based the analysis of demonstratives on evidence of their use in real interactional situations. In this article, video recordings of spontaneous interaction among speakers of Lao (Southwestern Tai, Laos) are examined in an analysis of the two Lao demonstrative determiners nii4 and nan4. A hypothesis of minimal encoded semantics is tested against rich contextual information, and the hypothesis is shown to be consistent with the data. Encoded conventional meanings must be kept distinct from contingent contextual information and context-dependent pragmatic implicatures. Based on examples of the two Lao demonstrative determiners in exophoric uses, the following claims are made. The term nii4 is a semantically general demonstrative, lacking specification of ANY spatial property (such as location or distance). The term nan4 specifies that the referent is ‘not here’ (encoding ‘location’ but NOT ‘distance’). Anchoring the semantic specification in a deictic primitive ‘here’ allows a strictly discrete intensional distinction to be mapped onto an extensional range of endless elasticity. A common ‘proximal’ spatial interpretation for the semantically more general term nii4 arises from the paradigmatic opposition of the two demonstrative determiners. This kind of analysis suggests a reappraisal of our general understanding of the semantics of demonstrative systems universally. To investigate the question in sufficient detail, however, rich contextual data (preferably collected on video) is necessary
  • Enfield, N. J. (2005). Depictive and other secondary predication in Lao. In N. P. Himmelmann, & E. Schultze-Berndt (Eds.), Secondary predication and adverbial modification (pp. 379-392). Oxford: Oxford University Press.
  • Enfield, N. J. (2004). Adjectives in Lao. In R. M. W. Dixon, & A. Y. Aikhenvald (Eds.), Adjective classes: A cross-linguistic typology (pp. 323-347). Oxford: Oxford University Press.
  • Enfield, N. J. (2004). Areal grammaticalisation of postverbal 'acquire' in mainland Southeast Asia. In S. Burusphat (Ed.), Proceedings of the 11th Southeast Asia Linguistics Society Meeting (pp. 275-296). Arizona State University: Tempe.
  • Enfield, N. J. (2005). Areal linguistics and mainland Southeast Asia. Annual Review of Anthropology, 34, 181-206. doi:10.1146/annurev.anthro.34.081804.120406.
  • Enfield, N. J. (2005). [Comment on the book Explorations in the deictic field]. Current Anthropology, 46(2), 212-212.
  • Enfield, N. J. (2006). [Review of the book A grammar of Semelai by Nicole Kruspe]. Linguistic Typology, 10(3), 452-455. doi:10.1515/LINGTY.2006.014.
  • Enfield, N. J. (2005). [Review of the book Laughter in interaction by Philip Glenn]. Linguistics, 43(6), 1195-1197. doi:10.1515/ling.2005.43.6.1191.
  • Enfield, N. J. (2006). Heterosemy and the grammar-lexicon trade-off. In F. Ameka, A. Dench, & N. Evans (Eds.), Catching Language (pp. 297-320). Berlin: Mouton de Gruyter.
  • Enfield, N. J., & Levinson, S. C. (2006). Introduction: Human sociality as a new interdisciplinary field. In N. J. Enfield, & S. C. Levinson (Eds.), Roots of human sociality: Culture, cognition and interaction (pp. 1-35). Oxford: Berg.
  • Enfield, N. J. (2005). Micro and macro dimensions in linguistic systems. In S. Marmaridou, K. Nikiforidou, & E. Antonopoulou (Eds.), Reviewing linguistic thought: Converging trends for the 21st Century (pp. 313-326). Berlin: Mouton de Gruyter.
  • Enfield, N. J. (2003). Linguistic epidemiology: Semantics and grammar of language contact in mainland Southeast Asia. London: Routledge Curzon.
  • Enfield, N. J. (2006). Languages as historical documents: The endangered archive in Laos. South East Asia Research, 14(3), 471-488.

    Abstract

    Abstract: This paper reviews current discussion of the issue of just what is lost when a language dies. Special reference is made to the current situation in Laos, a country renowned for its considerable cultural and linguistic diversity. It focuses on the historical, anthropological and ecological knowledge that a language can encode, and the social and cultural consequences of the loss of such traditional knowledge when a language is no longer passed on. Finally, the article points out the paucity of studies and obstacles to field research on minority languages in Laos, which seriously hamper their documentation.
  • Enfield, N. J. (2006). Lao body part terms. Language Sciences, 28(2-3), 181-200. doi:10.1016/j.langsci.2005.11.011.

    Abstract

    This article presents a description of nominal expressions for parts of the human body conventionalised in Lao, a Southwestern Tai language spoken in Laos, Northeast Thailand, and Northeast Cambodia. An inventory of around 170 Lao expressions is listed, with commentary where some notability is determined, usually based on explicit comparison to the metalanguage, English. Notes on aspects of the grammatical and semantic structure of the set of body part terms are provided, including a discussion of semantic relations pertaining among members of the set of body part terms. I conclude that the semantic relations which pertain between terms for different parts of the body not only include part/whole relations, but also relations of location, connectedness, and general association. Calling the whole system a ‘partonomy’ attributes greater centrality to the part/whole relation than is warranted.
  • Enfield, N. J. (2006). Laos - language situation. In K. Brown (Ed.), Encyclopedia of Language and Linguistics (vol. 6) (pp. 698-700). Amsterdam: Elsevier.

    Abstract

    Laos features a high level of linguistic diversity, with more than 70 languages from four different major language families (Tai, Mon-Khmer, Hmong-Mien, Tibeto-Burman). Mon-Khmer languages were spoken in Laos earlier than other languages, with incoming migrations by Tai speakers (c. 2000 years ago) and Hmong-Mien speakers (c. 200 years ago). There is widespread language contact and multilingualism in upland minority communities, while lowland-dwelling Lao speakers are largely monolingual. Lao is the official national language. Most minority languages are endangered, with a few exceptions (notably Hmong and Kmhmu). There has been relatively little linguistic research on languages of Laos, due to problems of both infrastructure and administration.
  • Enfield, N. J. (2004). Nominal classification in Lao: A sketch. Sprachtypologie und Universalienforschung, 57(2/3), 117-143.
  • Enfield, N. J. (Ed.). (2003). Field research manual 2003, part I: Multimodal interaction, space, event representation. Nijmegen: Max Planck Institute for Psycholinguistics.
  • Enfield, N., Kelly, A., & Sprenger, S. (2004). Max-Planck-Institute for Psycholinguistics: Annual Report 2004. Nijmegen: MPI for Psycholinguistics.
  • Enfield, N. J., De Ruiter, J. P., Levinson, S. C., & Stivers, T. (2003). Multimodal interaction in your field site: A preliminary investigation. In N. J. Enfield (Ed.), Field research manual 2003, part I: Multimodal interaction, space, event representation (pp. 10-16). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.877638.

    Abstract

    Research on video- and audio-recordings of spontaneous naturally-occurring conversation in English has shown that conversation is a rule-guided, practice-oriented domain that can be investigated for its underlying mechanics or structure. Systematic study could yield something like a grammar for conversation. The goal of this task is to acquire a corpus of video-data, for investigating the underlying structure(s) of interaction cross-linguistically and cross-culturally
  • Enfield, N. J., & Levinson, S. C. (2003). Interview on kinship. In N. J. Enfield (Ed.), Field research manual 2003, part I: Multimodal interaction, space, event representation (pp. 64-65). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.877629.

    Abstract

    We want to know how people think about their field of kin, on the supposition that it is quasi-spatial. To get some insights here, we need to video a discussion about kinship reckoning, the kinship system, marriage rules and so on, with a view to looking at both the linguistic expressions involved, and the gestures people use to indicate kinship groups and relations. Unlike the task in the 2001 manual, this task is a direct interview method.
  • Enfield, N. J. (2003). Introduction. In N. J. Enfield, Linguistic epidemiology: Semantics and grammar of language contact in mainland Southeast Asia (pp. 2-44). London: Routledge Curzon.
  • Enfield, N. J. (2004). Repair sequences in interaction. In A. Majid (Ed.), Field Manual Volume 9 (pp. 48-52). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.492945.

    Abstract

    This Field Manual entry has been superceded by the 2007 version: https://doi.org/10.17617/2.468724

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  • Enfield, N. J., & De Ruiter, J. P. (2003). The diff-task: A symmetrical dyadic multimodal interaction task. In N. J. Enfield (Ed.), Field research manual 2003, part I: Multimodal interaction, space, event representation (pp. 17-21). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.877635.

    Abstract

    This task is a complement to the questionnaire ‘Multimodal interaction in your field site: a preliminary investigation’. The objective of the task is to obtain high quality video data on structured and symmetrical dyadic multimodal interaction. The features of interaction we are interested in include turn organization in speech and nonverbal behavior, eye-gaze behavior, use of composite signals (i.e. communicative units of speech-combined-with-gesture), and linguistic and other resources for ‘navigating’ interaction (e.g. words like okay, now, well, and um).

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  • Enfield, N. J. (2005). Review of the book [The Handbook of Historical Linguistics, edited by Brian D. Joseph and Richard D. Janda]. Linguistics, 43(6), 1191-1197. doi:10.1515/ling.2005.43.6.1191.
  • Enfield, N. J. (2003). Preface and priorities. In N. J. Enfield (Ed.), Field research manual 2003, part I: Multimodal interaction, space, event representation (pp. 3). Nijmegen: Max Planck Institute for Psycholinguistics.
  • Erkelens, M. (2003). The semantic organization of "cut" and "break" in Dutch: A developmental study. Master Thesis, Free University Amsterdam, Amsterdam.
  • Ernestus, M., & Baayen, R. H. (2003). Predicting the unpredictable: The phonological interpretation of neutralized segments in Dutch. Language, 79(1), 5-38.

    Abstract

    Among the most fascinating data for phonology are those showing how speakers incorporate new words and foreign words into their language system, since these data provide cues to the actual principles underlying language. In this article, we address how speakers deal with neutralized obstruents in new words. We formulate four hypotheses and test them on the basis of Dutch word-final obstruents, which are neutral for [voice]. Our experiments show that speakers predict the characteristics ofneutralized segments on the basis ofphonologically similar morphemes stored in the mental lexicon. This effect of the similar morphemes can be modeled in several ways. We compare five models, among them STOCHASTIC OPTIMALITY THEORY and ANALOGICAL MODELING OF LANGUAGE; all perform approximately equally well, but they differ in their complexity, with analogical modeling oflanguage providing the most economical explanation.
  • Ernestus, M. (2006). Statistically gradient generalizations for contrastive phonological features. The Linguistic Review, 23(3), 217-233. doi:10.1515/TLR.2006.008.

    Abstract

    In mainstream phonology, contrastive properties, like stem-final voicing, are simply listed in the lexicon. This article reviews experimental evidence that such contrastive properties may be predictable to some degree and that the relevant statistically gradient generalizations form an inherent part of the grammar. The evidence comes from the underlying voice specification of stem-final obstruents in Dutch. Contrary to received wisdom, this voice specification is partly predictable from the obstruent’s manner and place of articulation and from the phonological properties of the preceding segments. The degree of predictability, which depends on the exact contents of the lexicon, directs speakers’ guesses of underlying voice specifications. Moreover, existing words that disobey the generalizations are disadvantaged by being recognized and produced more slowly and less accurately, also under natural conditions.We discuss how these observations can be accounted for in two types of different approaches to grammar, Stochastic Optimality Theory and exemplar-based modeling.
  • Ernestus, M. (2003). The role of phonology and phonetics in Dutch voice assimilation. In J. v. d. Weijer, V. J. v. Heuven, & H. v. d. Hulst (Eds.), The phonological spectrum Volume 1: Segmental structure (pp. 119-144). Amsterdam: John Benjamins.
  • Ernestus, M., & Baayen, R. H. (2006). The functionality of incomplete neutralization in Dutch: The case of past-tense formation. In L. Goldstein, D. Whalen, & C. Best (Eds.), Laboratory Phonology 8 (pp. 27-49). Berlin: Mouton de Gruyter.
  • Ernestus, M., Mak, W. M., & Baayen, R. H. (2005). Waar 't kofschip strandt. Levende Talen Magazine, 92, 9-11.
  • Ernestus, M., & Mak, W. M. (2004). Distinctive phonological features differ in relevance for both spoken and written word recognition. Brain and Language, 90(1-3), 378-392. doi:10.1016/S0093-934X(03)00449-8.

    Abstract

    This paper discusses four experiments on Dutch which show that distinctive phonological features differ in their relevance for word recognition. The relevance of a feature for word recognition depends on its phonological stability, that is, the extent to which that feature is generally realized in accordance with its lexical specification in the relevant word position. If one feature value is uninformative, all values of that feature are less relevant for word recognition, with the least informative feature being the least relevant. Features differ in their relevance both in spoken and written word recognition, though the differences are more pronounced in auditory lexical decision than in self-paced reading.
  • Ernestus, M., & Mak, W. M. (2005). Analogical effects in reading Dutch verb forms. Memory & Cognition, 33(7), 1160-1173.

    Abstract

    Previous research has shown that the production of morphologically complex words in isolation is affected by the properties of morphologically, phonologically, or semantically similar words stored in the mental lexicon. We report five experiments with Dutch speakers that show that reading an inflectional word form in its linguistic context is also affected by analogical sets of formally similar words. Using the self-paced reading technique, we show in Experiments 1-3 that an incorrectly spelled suffix delays readers less if the incorrect spelling is in line with the spelling of verbal suffixes in other inflectional forms of the same verb. In Experiments 4 and 5, our use of the self-paced reading technique shows that formally similar words with different stems affect the reading of incorrect suffixal allomorphs on a given stem. These intra- and interparadigmatic effects in reading may be due to online processes or to the storage of incorrect forms resulting from analogical effects in production.
  • Ernestus, M., & Baayen, R. H. (2004). Analogical effects in regular past tense production in Dutch. Linguistics, 42(5), 873-903. doi:10.1515/ling.2004.031.

    Abstract

    This study addresses the question to what extent the production of regular past tense forms in Dutch is a¤ected by analogical processes. We report an experiment in which native speakers of Dutch listened to existing regular verbs over headphones, and had to indicate which of the past tense allomorphs, te or de, was appropriate for these verbs. According to generative analyses, the choice between the two su‰xes is completely regular and governed by the underlying [voice]-specification of the stem-final segment. In this approach, no analogical e¤ects are expected. In connectionist and analogical approaches, by contrast, the phonological similarity structure in the lexicon is expected to a¤ect lexical processing. Our experimental results support the latter approach: all participants created more nonstandard past tense forms, produced more inconsistency errors, and responded more slowly for verbs with stronger analogical support for the nonstandard form.
  • Ernestus, M., Lahey, M., Verhees, F., & Baayen, R. H. (2006). Lexical frequency and voice assimilation. Journal of the Acoustical Society of America, 120(2), 1040-1051. doi:10.1121/1.2211548.

    Abstract

    Acoustic duration and degree of vowel reduction are known to correlate with a word’s frequency of occurrence. The present study broadens the research on the role of frequency in speech production to voice assimilation. The test case was regressive voice assimilation in Dutch. Clusters from a corpus of read speech were more often perceived as unassimilated in lower-frequency words and as either completely voiced regressive assimilation or, unexpectedly, as completely voiceless progressive assimilation in higher-frequency words. Frequency did not predict the voice classifications over and above important acoustic cues to voicing, suggesting that the frequency effects on the classifications were carried exclusively by the acoustic signal. The duration of the cluster and the period of glottal vibration during the cluster decreased while the duration of the release noises increased with frequency. This indicates that speakers reduce articulatory effort for higher-frequency words, with some acoustic cues signaling more voicing and others less voicing. A higher frequency leads not only to acoustic reduction but also to more assimilation.
  • Ernestus, M., & Baayen, R. H. (2004). Kuchde, tobte, en turfte: Lekkage in 't kofschip. Onze Taal, 73(12), 360-361.
  • Evans, N., Levinson, S. C., Enfield, N. J., Gaby, A., & Majid, A. (2004). Reciprocal constructions and situation type. In A. Majid (Ed.), Field Manual Volume 9 (pp. 25-30). Nijmegen: Max Planck Institute for Psycholinguistics. doi:10.17617/2.506955.
  • Felser, C., Roberts, L., Marinis, T., & Gross, R. (2003). The processing of ambiguous sentences by first and second language learners of English. Applied Psycholinguistics, 24(3), 453-489.

    Abstract

    This study investigates the way adult second language (L2) learners of English resolve relative clause attachment ambiguities in sentences such as The dean liked the secretary of the professor who was reading a letter. Two groups of advanced L2 learners of English with Greek or German as their first language participated in a set of off-line and on-line tasks. The results indicate that the L2 learners do not process ambiguous sentences of this type in the same way as adult native speakers of English do. Although the learners’ disambiguation preferences were influenced by lexical–semantic properties of the preposition linking the two potential antecedent noun phrases (of vs. with), there was no evidence that they applied any phrase structure–based ambiguity resolution strategies of the kind that have been claimed to influence sentence processing in monolingual adults. The L2 learners’ performance also differs markedly from the results obtained from 6- to 7-year-old monolingual English children in a parallel auditory study, in that the children’s attachment preferences were not affected by the type of preposition at all. We argue that children, monolingual adults, and adult L2 learners differ in the extent to which they are guided by phrase structure and lexical–semantic information during sentence processing.
  • Filippi, P. (2005). Gilbert Ryle: Pensare la Mente. Master Thesis, Università degli Studi di Palermo, Palermo.

    Abstract

    This study focuses on the main work of Gilbert Ryle, “The concept of Mind” (1949). Here the author demolishes what he refers to as the cartesian dogma of “the ghost in the machine”, highlighting the absurdity of categorical ordering in dualist systems, where mental activities are explained as separate from physical actions. Surprisingly, the Italian translator of “The concept of Mind”, Ferruccio Rossi-Landi, missed this key aspect of Ryle’s work, writing up what resulted into a significantly misleading translation. This can be clearly noticed from the title already: “Lo spirito come comportamento” [The ghost as behavior]. This erroneous translation affected the interpretation of “The concept of Mind” as a mere study on behavioral reductionism in Italy. Here, I argue in favor of the originality of Ryle’s approach in pointing out the socio-cultural dynamics as the non - physical dimensions of the human mind, and yet, linked to the human brain. In doing so, I trace the crucial influence of Wittgenstein’s philosophy in Ryle’s interpretation of the concept of mind, which helps in grasping a better understanding of his work. Wittgenstein’s influence shows clearly in Ryle’s conceptual operation of grounding the acquisition of dispositions and competences - which ultimately define the rational subjects as rational agents – in the shared background of social and cultural dynamics. In a nutshell, this social dimension is the defining characteristic of the human mind and of all human actions in Ryle’s philosophy. As Ryle argues in “On thinking” (1979), this intrinsic quality of human actions can reveal itself in actions that one performs absent-mindendly in everyday life, as well as in more complex ones: for instance, when the mind reflects upon itself.
  • Fisher, S. E., Lai, C. S., & Monaco, a. A. P. (2003). Deciphering the genetic basis of speech and language disorders. Annual Review of Neuroscience, 26, 57-80. doi:10.1146/annurev.neuro.26.041002.131144.

    Abstract

    A significant number of individuals have unexplained difficulties with acquiring normal speech and language, despite adequate intelligence and environmental stimulation. Although developmental disorders of speech and language are heritable, the genetic basis is likely to involve several, possibly many, different risk factors. Investigations of a unique three-generation family showing monogenic inheritance of speech and language deficits led to the isolation of the first such gene on chromosome 7, which encodes a transcription factor known as FOXP2. Disruption of this gene causes a rare severe speech and language disorder but does not appear to be involved in more common forms of language impairment. Recent genome-wide scans have identified at least four chromosomal regions that may harbor genes influencing the latter, on chromosomes 2, 13, 16, and 19. The molecular genetic approach has potential for dissecting neurological pathways underlying speech and language disorders, but such investigations are only just beginning.
  • Fisher, S. E. (2005). Dissection of molecular mechanisms underlying speech and language disorders. Applied Psycholinguistics, 26, 111-128. doi:10.1017/S0142716405050095.

    Abstract

    Developmental disorders affecting speech and language are highly heritable, but very little is currently understood about the neuromolecular mechanisms that underlie these traits. Integration of data from diverse research areas, including linguistics, neuropsychology, neuroimaging, genetics, molecular neuroscience, developmental biology, and evolutionary anthropology, is becoming essential for unraveling the relevant pathways. Recent studies of the FOXP2 gene provide a case in point. Mutation of FOXP2 causes a rare form of speech and language disorder, and the gene appears to be a crucial regulator of embryonic development for several tissues. Molecular investigations of the central nervous system indicate that the gene may be involved in establishing and maintaining connectivity of corticostriatal and olivocerebellar circuits in mammals. Notably, it has been shown that FOXP2 was subject to positive selection in recent human evolution. Consideration of findings from multiple levels of analysis demonstrates that FOXP2 cannot be characterized as “the gene for speech,” but rather as one critical piece of a complex puzzle. This story gives a flavor of what is to come in this field and indicates that anyone expecting simple explanations of etiology or evolution should be prepared for some intriguing surprises.
  • Fisher, S. E., & Francks, C. (2006). Genes, cognition and dyslexia: Learning to read the genome. Trends in Cognitive Sciences, 10, 250-257. doi:10.1016/j.tics.2006.04.003.

    Abstract

    Studies of dyslexia provide vital insights into the cognitive architecture underpinning both disordered and normal reading. It is well established that inherited factors contribute to dyslexia susceptibility, but only very recently has evidence emerged to implicate specific candidate genes. In this article, we provide an accessible overview of four prominent examples--DYX1C1, KIAA0319, DCDC2 and ROBO1--and discuss their relevance for cognition. In each case correlations have been found between genetic variation and reading impairments, but precise risk variants remain elusive. Although none of these genes is specific to reading-related neuronal circuits, or even to the human brain, they have intriguing roles in neuronal migration or connectivity. Dissection of cognitive mechanisms that subserve reading will ultimately depend on an integrated approach, uniting data from genetic investigations, behavioural studies and neuroimaging.
  • Fisher, S. E. (2006). How can animal studies help to uncover the roles of genes implicated in human speech and language disorders? In G. S. Fisch, & J. Flint (Eds.), Transgenic and knockout models of neuropsychiatric disorders (pp. 127-149). Totowa, NJ: Humana Press.

    Abstract

    The mysterious human propensity for acquiring speech and language has fascinated scientists for decades. A substantial body of evidence suggests that this capacity is rooted in aspects of neurodevelopment that are specified at the genomic level. Researchers have begun to identify genetic factors that increase susceptibility to developmental disorders of speech and language, thereby offering the first molecular entry points into neuronal mechanisms underlying human vocal communication. The identification of genetic variants influencing language acquisition facilitates the analysis of animal models in which the corresponding orthologs are disrupted. At face value, the situation raises aperplexing question: if speech and language are uniquely human, can any relevant insights be gained from investigations of gene function in other species? This chapter addresses the question using the example of FOXP2, a gene implicated in a severe monogenic speech and language disorder. FOXP2 encodes a transcription factor that is highly conserved in vertebrate species, both in terms of protein sequence and expression patterns. Current data suggest that an earlier version of this gene, present in the common ancestor of humans, rodents, and birds, was already involved in establishing neuronal circuits underlying sensory-motor integration and learning of complex motor sequences. This may have represented one of the factors providing a permissive neural environment for subsequent evolution of vocal learning. Thus, dissection of neuromolecular pathways regulated by Foxp2 in nonlinguistic species is a necessary prerequisite for understanding the role of the human version of the gene in speech and language.
  • Fisher, S. E. (2005). On genes, speech, and language. The New England Journal of Medicine: NEJM / Publ. by the Massachusetts Medical Society, 353, 1655-1657. doi:10.1056/NEJMp058207.

    Abstract

    Learning to talk is one of the most important milestones in human development, but we still have only a limited understanding of the way in which the process occurs. It normally takes just a few years to go from babbling newborn to fluent communicator. During this period, the child learns to produce a rich array of speech sounds through intricate control of articulatory muscles, assembles a vocabulary comprising thousands of words, and deduces the complicated structural rules that permit construction of meaningful sentences. All of this (and more) is achieved with little conscious effort.

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  • Fisher, S. E. (2006). Tangled webs: Tracing the connections between genes and cognition. Cognition, 101, 270-297. doi:10.1016/j.cognition.2006.04.004.

    Abstract

    The rise of molecular genetics is having a pervasive influence in a wide variety of fields, including research into neurodevelopmental disorders like dyslexia, speech and language impairments, and autism. There are many studies underway which are attempting to determine the roles of genetic factors in the aetiology of these disorders. Beyond the obvious implications for diagnosis, treatment and understanding, success in these efforts promises to shed light on the links between genes and aspects of cognition and behaviour. However, the deceptive simplicity of finding correlations between genetic and phenotypic variation has led to a common misconception that there exist straightforward linear relationships between specific genes and particular behavioural and/or cognitive outputs. The problem is exacerbated by the adoption of an abstract view of the nature of the gene, without consideration of molecular, developmental or ontogenetic frameworks. To illustrate the limitations of this perspective, I select two cases from recent research into the genetic underpinnings of neurodevelopmental disorders. First, I discuss the proposal that dyslexia can be dissected into distinct components specified by different genes. Second, I review the story of the FOXP2 gene and its role in human speech and language. In both cases, adoption of an abstract concept of the gene can lead to erroneous conclusions, which are incompatible with current knowledge of molecular and developmental systems. Genes do not specify behaviours or cognitive processes; they make regulatory factors, signalling molecules, receptors, enzymes, and so on, that interact in highly complex networks, modulated by environmental influences, in order to build and maintain the brain. I propose that it is necessary for us to fully embrace the complexity of biological systems, if we are ever to untangle the webs that link genes to cognition.
  • Fisher, S. E., & Marcus, G. (2006). The eloquent ape: Genes, brains and the evolution of language. Nature Reviews Genetics, 7, 9-20. doi:10.1038/nrg1747.

    Abstract

    The human capacity to acquire complex language seems to be without parallel in the natural world. The origins of this remarkable trait have long resisted adequate explanation, but advances in fields that range from molecular genetics to cognitive neuroscience offer new promise. Here we synthesize recent developments in linguistics, psychology and neuroimaging with progress in comparative genomics, gene-expression profiling and studies of developmental disorders. We argue that language should be viewed not as a wholesale innovation, but as a complex reconfiguration of ancestral systems that have been adapted in evolutionarily novel ways.
  • Fisher, S. E. (2003). The genetic basis of a severe speech and language disorder. In J. Mallet, & Y. Christen (Eds.), Neurosciences at the postgenomic era (pp. 125-134). Heidelberg: Springer.
  • Fitz, H. (2006). Church's thesis and physical computation. In A. Olszewski, J. Wolenski, & R. Janusz (Eds.), Church's Thesis after 70 years (pp. 175-219). Frankfurt a. M: Ontos Verlag.
  • FitzPatrick, I. (2006). Effects of sentence context in L2 natural speech comprehension. Master Thesis, Radboud Universiteit Nijmegen, Nijmegen.
  • Floyd, S. (2004). Purismo lingüístico y realidad local: ¿Quichua puro o puro quichuañol? In Proceedings of the Conference on Indigenous Languages of Latin America (CILLA)-I.
  • Floyd, S. (2006). The cash value of style in the Andean market. In E.-X. Lee, K. M. Markman, V. Newdick, & T. Sakuma (Eds.), SALSA 13: Texas Linguistic Forum vol. 49. Austin, TX: Texas Linguistics Forum.

    Abstract

    This paper examines code and style shifting during sales transactions based on two market case studies from highland Ecuador. Bringing together ideas of linguistic economy with work on stylistic variation and ethnohistorical research on Andean markets, I study bartering, market calls and sales pitches to show how sellers create stylistic performances distinguished by contrasts of code, register and poetic features. The interaction of the symbolic value of language with the economic values of the market presents a place to examine the relationship between discourse and the material world.
  • Floyd, S. (2005). The poetics of evidentiality in South American storytelling. In L. Harper, & C. Jany (Eds.), Proceedings from the Eighth Workshop on American Indigenous languages (pp. 28-41). Santa Barbara, Cal: University of California, Santa Barbara. (Santa Barbara Papers in Linguistics; 46).
  • Forkstam, C., & Petersson, K. M. (2005). Towards an explicit account of implicit learning. Current Opinion in Neurology, 18(4), 435-441.

    Abstract

    Purpose of review: The human brain supports acquisition mechanisms that can extract structural regularities implicitly from experience without the induction of an explicit model. Reber defined the process by which an individual comes to respond appropriately to the statistical structure of the input ensemble as implicit learning. He argued that the capacity to generalize to new input is based on the acquisition of abstract representations that reflect underlying structural regularities in the acquisition input. We focus this review of the implicit learning literature on studies published during 2004 and 2005. We will not review studies of repetition priming ('implicit memory'). Instead we focus on two commonly used experimental paradigms: the serial reaction time task and artificial grammar learning. Previous comprehensive reviews can be found in Seger's 1994 article and the Handbook of Implicit Learning. Recent findings: Emerging themes include the interaction between implicit and explicit processes, the role of the medial temporal lobe, developmental aspects of implicit learning, age-dependence, the role of sleep and consolidation. Summary: The attempts to characterize the interaction between implicit and explicit learning are promising although not well understood. The same can be said about the role of sleep and consolidation. Despite the fact that lesion studies have relatively consistently suggested that the medial temporal lobe memory system is not necessary for implicit learning, a number of functional magnetic resonance studies have reported medial temporal lobe activation in implicit learning. This issue merits further research. Finally, the clinical relevance of implicit learning remains to be determined.
  • Forkstam, C., Hagoort, P., Fernandez, G., Ingvar, M., & Petersson, K. M. (2006). Neural correlates of artificial syntactic structure classification. NeuroImage, 32(2), 956-967. doi:10.1016/j.neuroimage.2006.03.057.

    Abstract

    The human brain supports acquisition mechanisms that extract structural regularities implicitly from experience without the induction of an explicit model. It has been argued that the capacity to generalize to new input is based on the acquisition of abstract representations, which reflect underlying structural regularities in the input ensemble. In this study, we explored the outcome of this acquisition mechanism, and to this end, we investigated the neural correlates of artificial syntactic classification using event-related functional magnetic resonance imaging. The participants engaged once a day during an 8-day period in a short-term memory acquisition task in which consonant-strings generated from an artificial grammar were presented in a sequential fashion without performance feedback. They performed reliably above chance on the grammaticality classification tasks on days 1 and 8 which correlated with a corticostriatal processing network, including frontal, cingulate, inferior parietal, and middle occipital/occipitotemporal regions as well as the caudate nucleus. Part of the left inferior frontal region (BA 45) was specifically related to syntactic violations and showed no sensitivity to local substring familiarity. In addition, the head of the caudate nucleus correlated positively with syntactic correctness on day 8 but not day 1, suggesting that this region contributes to an increase in cognitive processing fluency.

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