Publications

Displaying 1 - 100 of 142
  • Ameka, F. K. (1999). [Review of M. E. Kropp Dakubu: Korle meets the sea: a sociolinguistic history of Accra]. Bulletin of the School of Oriental and African Studies, 62, 198-199. doi:10.1017/S0041977X0001836X.
  • Ameka, F. K. (1999). Partir c'est mourir un peu: Universal and culture specific features of leave taking. RASK International Journal of Language and Communication, 9/10, 257-283.
  • Ameka, F. K. (1999). Spatial information packaging in Ewe and Likpe: A comparative perspective. Frankfurter Afrikanistische Blätter, 11, 7-34.
  • Ameka, F. K. (1995). The linguistic construction of space in Ewe. Cognitive Linguistics, 6(2/3), 139-182. doi:10.1515/cogl.1995.6.2-3.139.

    Abstract

    This paper presents the linguistic means of describing spatial relations in Ewe with particular emphasis on the grammar and meaning of adpositions. Ewe ( N iger-Congo ) has two sets of adpositions: prepositions, which have evolvedfrom verbs, and postpositions which have evolvedfrom nouns. The postpositions create places and are treated äs intrinsic parts or regions of the reference object in a spatial description. The prepositions provide the general orientation of a Figure (located object). It is demonstrated (hat spaiial relations, such äs those encapsulated in "the basic topological prepositions at, in and on" in English (Herskovits 1986: 9), are not encoded in single linguistic elements in Ewe, but are distributed over members of dijferent form classes in a syntagmatic string, The paper explores the r öle of compositionality andits interaction with pragmatics to yield understandings of spatial configurations in such a language where spatial meanings cannot he simply read off one form. The study also examines the diversity among languages in terms of the nature and obligatoriness of the coding of relational and ground Information in spatial constructions. It is argued that the ränge and type of distinctions discussed in the paper must be accountedfor in semantic typology and in the cross-linguistic investigation of spatial language and conceptualisation.
  • Ameka, F. K. (1999). The typology and semantics of complex nominal duplication in Ewe. Anthropological Linguistics, 41, 75-106.
  • Bastiaansen, M. C. M., Böcker, K. B. E., Cluitmans, P. J. M., & Brunia, C. H. M. (1999). Event-related desynchronization related to the anticipation of a stimulus providing knowledge of results. Clinical Neurophysiology, 110, 250-260.

    Abstract

    In the present paper, event-related desynchronization (ERD) in the alpha and beta frequency bands is quantified in order to investigate the processes related to the anticipation of a knowledge of results (KR) stimulus. In a time estimation task, 10 subjects were instructed to press a button 4 s after the presentation of an auditory stimulus. Two seconds after the response they received auditory or visual feedback on the timing of their response. Preceding the button press, a centrally maximal ERD is found. Preceding the visual KR stimulus, an ERD is present that has an occipital maximum. Contrary to expectation, preceding the auditory KR stimulus there are no signs of a modalityspecific ERD. Results are related to a thalamo-cortical gating model which predicts a correspondence between negative slow potentials and ERD during motor preparation and stimulus anticipation.
  • Blair, H. J., Ho, M., Monaco, A. P., Fisher, S. E., Craig, I. W., & Boyd, Y. (1995). High-resolution comparative mapping of the proximal region of the mouse X chromosome. Genomics, 28(2), 305-310. doi:10.1006/geno.1995.1146.

    Abstract

    The murine homologues of the loci for McLeod syndrome (XK), Dent's disease (CICN5), and synaptophysin (SYP) have been mapped to the proximal region of the mouse X chromosome and positioned with respect to other conserved loci in this region using a total of 948 progeny from two separate Mus musculus x Mus spretus backcrosses. In the mouse, the order of loci and evolutionary breakpoints (EB) has been established as centromere-(DXWas70, DXHXF34h)-EB-Clcn5-(Syp, DXMit55, DXMit26)-Tfe3-Gata1-EB-Xk-Cybb-telomere. In the proximal region of the human X chromosome short arm, the position of evolutionary breakpoints with respect to key loci has been established as DMD-EB-XK-PFC-EB-GATA1-C1CN5-EB-DXS1272E-ALAS2-E B-DXF34-centromere. These data have enabled us to construct a high-resolution genetic map for the approximately 3-cM interval between DXWas70 and Cybb on the mouse X chromosome, which encompasses 10 loci. This detailed map demonstrates the power of high-resolution genetic mapping in the mouse as a means of determining locus order in a small chromosomal region and of providing an accurate framework for the construction of physical maps.
  • Böcker, K. B. E., Bastiaansen, M. C. M., Vroomen, J., Brunia, C. H. M., & de Gelder, B. (1999). An ERP correlate of metrical stress in spoken word recognition. Psychophysiology, 36, 706-720. doi:10.1111/1469-8986.3660706.

    Abstract

    Rhythmic properties of spoken language such as metrical stress, that is, the alternation of strong and weak syllables, are important in speech recognition of stress-timed languages such as Dutch and English. Nineteen subjects listened passively to or discriminated actively between sequences of bisyllabic Dutch words, which started with either a weak or a strong syllable. Weak-initial words, which constitute 12% of the Dutch lexicon, evoked more negativity than strong-initial words in the interval between P2 and N400 components of the auditory event-related potential. This negativity was denoted as N325. The N325 was larger during stress discrimination than during passive listening. N325 was also larger when a weak-initial word followed sequence of strong-initial words than when it followed words with the same stress pattern. The latter difference was larger for listeners who performed well on stress discrimination. It was concluded that the N325 is probably a manifestation of the extraction of metrical stress from the acoustic signal and its transformation into task requirements.
  • Boland, J. E., & Cutler, A. (1995). Interaction with autonomy: Defining multiple output models in psycholinguistic theory. Working Papers in Linguistic, 45, 1-10. Retrieved from http://hdl.handle.net/2066/15768.

    Abstract

    There are currently a number of psycholinguistic models in which processing at a particular level of representation is characterized by the generation of multiple outputs, with resolution involving the use of information from higher levels of processing. Surprisingly, models with this architecture have been characterized as autonomous within the domain of word recognition and as interactive within the domain of sentence processing. We suggest that the apparent internal confusion is not, as might be assumed, due to fundamental differences between lexical and syntactic processing. Rather, we believe that the labels in each domain were chosen in order to obtain maximal contrast between a new model and the model or models that were currently dominating the field.
  • Boland, J. E., & Cutler, A. (1995). Interaction with autonomy: Multiple Output models and the inadequacy of the Great Divide. Cognition, 58, 309-320. doi:10.1016/0010-0277(95)00684-2.

    Abstract

    There are currently a number of psycholinguistic models in which processing at a particular level of representation is characterized by the generation of multiple outputs, with resolution - but not generation - involving the use of information from higher levels of processing. Surprisingly, models with this architecture have been characterized as autonomous within the domain of word recognition but as interactive within the domain of sentence processing. We suggest that the apparent confusion is not, as might be assumed, due to fundamental differences between lexical and syntactic processing. Rather, we believe that the labels in each domain were chosen in order to obtain maximal contrast between a new model and the model or models that were currently dominating the field. The contradiction serves to highlight the inadequacy of a simple autonomy/interaction dichotomy for characterizing the architectures of current processing models.
  • Bowerman, M. (1973). [Review of Lois Bloom, Language development: Form and function in emerging grammars (MIT Press 1970)]. American Scientist, 61(3), 369-370.
  • Brown, P. (1999). Anthropologie cognitive. Anthropologie et Sociétés, 23(3), 91-119.

    Abstract

    In reaction to the dominance of universalism in the 1970s and '80s, there have recently been a number of reappraisals of the relation between language and cognition, and the field of cognitive anthropology is flourishing in several new directions in both America and Europe. This is partly due to a renewal and re-evaluation of approaches to the question of linguistic relativity associated with Whorf, and partly to the inspiration of modern developments in cognitive science. This review briefly sketches the history of cognitive anthropology and surveys current research on both sides of the Atlantic. The focus is on assessing current directions, considering in particular, by way of illustration, recent work in cultural models and on spatial language and cognition. The review concludes with an assessment of how cognitive anthropology could contribute directly both to the broader project of cognitive science and to the anthropological study of how cultural ideas and practices relate to structures and processes of human cognition.
  • Brown, C. M., Hagoort, P., & Ter Keurs, M. (1999). Electrophysiological signatures of visual lexical processing: open en closed-class words. Journal of Cognitive Neuroscience, 11(3), 261-281.

    Abstract

    In this paper presents evidence of the disputed existence of an electrophysiological marker for the lexical-categorical distinction between open- and closed-class words. Event-related brain potentials were recorded from the scalp while subjects read a story. Separate waveforms were computed for open- and closed-class words. Two aspects of the waveforms could be reliably related to vocabulary class. The first was an early negativity in the 230- to 350-msec epoch, with a bilateral anterior predominance. This negativity was elicited by open- and closed-class words alike, was not affected by word frequency or word length, and had an earlier peak latency for closed-class words. The second was a frontal slow negative shift in the 350- to 500-msec epoch, largest over the left side of the scalp. This late negativity was only elicited by closed-class words. Although the early negativity cannot serve as a qualitative marker of the open- and closed-class distinction, it does reflect the earliest electrophysiological manifestation of the availability of categorical information from the mental lexicon. These results suggest that the brain honors the distinction between open- and closed-class words, in relation to the different roles that they play in on-line sentence processing.
  • Brown, P. (1999). Repetition [Encyclopedia entry for 'Lexicon for the New Millenium', ed. Alessandro Duranti]. Journal of Linguistic Anthropology, 9(2), 223-226. doi:10.1525/jlin.1999.9.1-2.223.

    Abstract

    This is an encyclopedia entry describing conversational and interactional uses of linguistic repetition.
  • Choi, S., McDonough, L., Bowerman, M., & Mandler, J. M. (1999). Early sensitivity to language-specific spatial categories in English and Korean. Cognitive Development, 14, 241-268. doi:10.1016/S0885-2014(99)00004-0.

    Abstract

    This study investigates young children’s comprehension of spatial terms in two languages that categorize space strikingly differently. English makes a distinction between actions resulting in containment (put in) versus support or surface attachment (put on), while Korean makes a cross-cutting distinction between tight-fit relations (kkita) versus loose-fit or other contact relations (various verbs). In particular, the Korean verb kkita refers to actions resulting in a tight-fit relation regardless of containment or support. In a preferential looking study we assessed the comprehension of in by 20 English learners and kkita by 10 Korean learners, all between 18 and 23 months. The children viewed pairs of scenes while listening to sentences with and without the target word. The target word led children to gaze at different and language-appropriate aspects of the scenes. We conclude that children are sensitive to language-specific spatial categories by 18–23 months.
  • Chwilla, D., Brown, C. M., & Hagoort, P. (1995). The N400 as a function of the level of processing. Psychophysiology, 32, 274-285. doi:10.1111/j.1469-8986.1995.tb02956.x.

    Abstract

    In a semantic priming paradigm, the effects of different levels of processing on the N400 were assessed by changing the task demands. In the lexical decision task, subjects had to discriminate between words and nonwords and in the physical task, subjects had to discriminate between uppercase and lowercase letters. The proportion of related versus unrelated word pairs differed between conditions. A lexicality test on reaction times demonstrated that the physical task was performed nonlexically. Moreover, a semantic priming reaction time effect was obtained only in the lexical decision task. The level of processing clearly affected the event-related potentials. An N400 priming effect was only observed in the lexical decision task. In contrast, in the physical task a P300 effect was observed for either related or unrelated targets, depending on their frequency of occurrence. Taken together, the results indicate that an N400 priming effect is only evoked when the task performance induces the semantic aspects of words to become part of an episodic trace of the stimulus event.
  • Clifton, Jr., C., Cutler, A., McQueen, J. M., & Van Ooijen, B. (1999). The processing of inflected forms. [Commentary on H. Clahsen: Lexical entries and rules of language.]. Behavioral and Brain Sciences, 22, 1018-1019.

    Abstract

    Clashen proposes two distinct processing routes, for regularly and irregularly inflected forms, respectively, and thus is apparently making a psychological claim. We argue his position, which embodies a strictly linguistic perspective, does not constitute a psychological processing model.
  • Cutler, A. (1985). Cross-language psycholinguistics. Linguistics, 23, 659-667.
  • Cutler, A., & Norris, D. (1999). Sharpening Ockham’s razor (Commentary on W.J.M. Levelt, A. Roelofs & A.S. Meyer: A theory of lexical access in speech production). Behavioral and Brain Sciences, 22, 40-41.

    Abstract

    Language production and comprehension are intimately interrelated; and models of production and comprehension should, we argue, be constrained by common architectural guidelines. Levelt et al.'s target article adopts as guiding principle Ockham's razor: the best model of production is the simplest one. We recommend adoption of the same principle in comprehension, with consequent simplification of some well-known types of models.
  • Cutler, A., & Otake, T. (1999). Pitch accent in spoken-word recognition in Japanese. Journal of the Acoustical Society of America, 105, 1877-1888.

    Abstract

    Three experiments addressed the question of whether pitch-accent information may be exploited in the process of recognizing spoken words in Tokyo Japanese. In a two-choice classification task, listeners judged from which of two words, differing in accentual structure, isolated syllables had been extracted ~e.g., ka from baka HL or gaka LH!; most judgments were correct, and listeners’ decisions were correlated with the fundamental frequency characteristics of the syllables. In a gating experiment, listeners heard initial fragments of words and guessed what the words were; their guesses overwhelmingly had the same initial accent structure as the gated word even when only the beginning CV of the stimulus ~e.g., na- from nagasa HLL or nagashi LHH! was presented. In addition, listeners were more confident in guesses with the same initial accent structure as the stimulus than in guesses with different accent. In a lexical decision experiment, responses to spoken words ~e.g., ame HL! were speeded by previous presentation of the same word ~e.g., ame HL! but not by previous presentation of a word differing only in accent ~e.g., ame LH!. Together these findings provide strong evidence that accentual information constrains the activation and selection of candidates for spoken-word recognition.
  • Cutler, A., Mehler, J., Norris, D., & Segui, J. (1988). Limits on bilingualism [Letters to Nature]. Nature, 340, 229-230. doi:10.1038/340229a0.

    Abstract

    SPEECH, in any language, is continuous; speakers provide few reliable cues to the boundaries of words, phrases, or other meaningful units. To understand speech, listeners must divide the continuous speech stream into portions that correspond to such units. This segmentation process is so basic to human language comprehension that psycholinguists long assumed that all speakers would do it in the same way. In previous research1,2, however, we reported that segmentation routines can be language-specific: speakers of French process spoken words syllable by syllable, but speakers of English do not. French has relatively clear syllable boundaries and syllable-based timing patterns, whereas English has relatively unclear syllable boundaries and stress-based timing; thus syllabic segmentation would work more efficiently in the comprehension of French than in the comprehension of English. Our present study suggests that at this level of language processing, there are limits to bilingualism: a bilingual speaker has one and only one basic language.
  • Cutler, A., & Norris, D. (1988). The role of strong syllables in segmentation for lexical access. Journal of Experimental Psychology: Human Perception and Performance, 14, 113-121. doi:10.1037/0096-1523.14.1.113.

    Abstract

    A model of speech segmentation in a stress language is proposed, according to which the occurrence of a strong syllable triggers segmentation of the speech signal, whereas occurrence of a weak syllable does not trigger segmentation. We report experiments in which listeners detected words embedded in nonsense bisyllables more slowly when the bisyllable had two strong syllables than when it had a strong and a weak syllable; mint was detected more slowly in mintayve than in mintesh. According to our proposed model, this result is an effect of segmentation: When the second syllable is strong, it is segmented from the first syllable, and successful detection of the embedded word therefore requires assembly of speech material across a segmentation position. Speech recognition models involving phonemic or syllabic recoding, or based on strictly left-to-right processes, do not predict this result. It is argued that segmentation at strong syllables in continuous speech recognition serves the purpose of detecting the most efficient locations at which to initiate lexical access. (C) 1988 by the American Psychological Association
  • Cutler, A., Hawkins, J. A., & Gilligan, G. (1985). The suffixing preference: A processing explanation. Linguistics, 23, 723-758.
  • Drolet, M., & Kempen, G. (1985). IPG: A cognitive approach to sentence generation. CCAI: The Journal for the Integrated Study of Artificial Intelligence, Cognitive Science and Applied Epistemology, 2, 37-61.
  • Drozd, K. F. (1995). Child English pre-sentential negation as metalinguistic exclamatory sentence negation. Journal of Child Language, 22(3), 583-610. doi:10.1017/S030500090000996X.

    Abstract

    This paper presents a study of the spontaneous pre-sentential negations of ten English-speaking children between the ages of 1; 6 and 3; 4 which supports the hypothesis that child English nonanaphoric pre-sentential negation is a form of metalinguistic exclamatory sentence negation. A detailed discourse analysis reveals that children's pre-sentential negatives like No Nathaniel a king (i) are characteristically echoic, and (it) typically express objection and rectification, two characteristic functions of exclamatory negation in adult discourse, e.g. Don't say 'Nathaniel's a king'! A comparison of children's pre-sentential negations with their internal predicate negations using not and don't reveals that the two negative constructions are formally and functionally distinct. I argue that children's nonanaphoric pre-sentential negatives constitute an independent, well-formed class of discourse negation. They are not 'primitive' constructions derived from the miscategorization of emphatic no in adult speech or children's 'inventions'. Nor are they an early derivational variant of internal sentence negation. Rather, these negatives reflect young children's competence in using grammatical negative constructions appropriately in discourse.
  • Edlinger, G., Bastiaansen, M. C. M., Brunia, C., Neuper, C., & Pfurtscheller, G. (1999). Cortical oscillatory activity assessed by combined EEG and MEG recordings and high resolution ERD methods. Biomedizinische Technik, 44(2), 131-134.
  • Enfield, N. J. (1999). On the indispensability of semantics: Defining the ‘vacuous’. Rask: internationalt tidsskrift for sprog og kommunikation, 9/10, 285-304.
  • Fear, B. D., Cutler, A., & Butterfield, S. (1995). The strong/weak syllable distinction in English. Journal of the Acoustical Society of America, 97, 1893-1904. doi:10.1121/1.412063.

    Abstract

    Strong and weak syllables in English can be distinguished on the basis of vowel quality, of stress, or of both factors. Critical for deciding between these factors are syllables containing unstressed unreduced vowels, such as the first syllable of automata. In this study 12 speakers produced sentences containing matched sets of words with initial vowels ranging from stressed to reduced, at normal and at fast speech rates. Measurements of the duration, intensity, F0, and spectral characteristics of the word-initial vowels showed that unstressed unreduced vowels differed significantly from both stressed and reduced vowels. This result held true across speaker sex and dialect. The vowels produced by one speaker were then cross-spliced across the words within each set, and the resulting words' acceptability was rated by listeners. In general, cross-spliced words were only rated significantly less acceptable than unspliced words when reduced vowels interchanged with any other vowel. Correlations between rated acceptability and acoustic characteristics of the cross-spliced words demonstrated that listeners were attending to duration, intensity, and spectral characteristics. Together these results suggest that unstressed unreduced vowels in English pattern differently from both stressed and reduced vowels, so that no acoustic support for a binary categorical distinction exists; nevertheless, listeners make such a distinction, grouping unstressed unreduced vowels by preference with stressed vowels
  • Fisher, S. E., Stein, J. F., & Monaco, A. P. (1999). A genome-wide search strategy for identifying quantitative trait loci involved in reading and spelling disability (developmental dyslexia). European Child & Adolescent Psychiatry, 8(suppl. 3), S47-S51. doi:10.1007/PL00010694.

    Abstract

    Family and twin studies of developmental dyslexia have consistently shown that there is a significant heritable component for this disorder. However, any genetic basis for the trait is likely to be complex, involving reduced penetrance, phenocopy, heterogeneity and oligogenic inheritance. This complexity results in reduced power for traditional parametric linkage analysis, where specification of the correct genetic model is important. One strategy is to focus on large multigenerational pedigrees with severe phenotypes and/or apparent simple Mendelian inheritance, as has been successfully demonstrated for speech and language impairment. This approach is limited by the scarcity of such families. An alternative which has recently become feasible due to the development of high-throughput genotyping techniques is the analysis of large numbers of sib-pairs using allele-sharing methodology. This paper outlines our strategy for conducting a systematic genome-wide search for genes involved in dyslexia in a large number of affected sib-pair familites from the UK. We use a series of psychometric tests to obtain different quantitative measures of reading deficit, which should correlate with different components of the dyslexia phenotype, such as phonological awareness and orthographic coding ability. This enable us to use QTL (quantitative trait locus) mapping as a powerful tool for localising genes which may contribute to reading and spelling disability.
  • Fisher, S. E., Marlow, A. J., Lamb, J., Maestrini, E., Williams, D. F., Richardson, A. J., Weeks, D. E., Stein, J. F., & Monaco, A. P. (1999). A quantitative-trait locus on chromosome 6p influences different aspects of developmental dyslexia. American Journal of Human Genetics, 64(1), 146-156. doi:10.1086/302190.

    Abstract

    Recent application of nonparametric-linkage analysis to reading disability has implicated a putative quantitative-trait locus (QTL) on the short arm of chromosome 6. In the present study, we use QTL methods to evaluate linkage to the 6p25-21.3 region in a sample of 181 sib pairs from 82 nuclear families that were selected on the basis of a dyslexic proband. We have assessed linkage directly for several quantitative measures that should correlate with different components of the phenotype, rather than using a single composite measure or employing categorical definitions of subtypes. Our measures include the traditional IQ/reading discrepancy score, as well as tests of word recognition, irregular-word reading, and nonword reading. Pointwise analysis by means of sib-pair trait differences suggests the presence, in 6p21.3, of a QTL influencing multiple components of dyslexia, in particular the reading of irregular words (P=.0016) and nonwords (P=.0024). A complementary statistical approach involving estimation of variance components supports these findings (irregular words, P=.007; nonwords, P=.0004). Multipoint analyses place the QTL within the D6S422-D6S291 interval, with a peak around markers D6S276 and D6S105 consistently identified by approaches based on trait differences (irregular words, P=.00035; nonwords, P=.0035) and variance components (irregular words, P=.007; nonwords, P=.0038). Our findings indicate that the QTL affects both phonological and orthographic skills and is not specific to phoneme awareness, as has been previously suggested. Further studies will be necessary to obtain a more precise localization of this QTL, which may lead to the isolation of one of the genes involved in developmental dyslexia.
  • Fisher, S. E., Van Bakel, I., Lloyd, S. E., Pearce, S. H. S., Thakker, R. V., & Craig, I. W. (1995). Cloning and characterization of CLCN5, the human kidney chloride channel gene implicated in Dent disease (an X-linked hereditary nephrolithiasis). Genomics, 29, 598-606. doi:10.1006/geno.1995.9960.

    Abstract

    Dent disease, an X-linked familial renal tubular disorder, is a form of Fanconi syndrome associated with proteinuria, hypercalciuria, nephrocalcinosis, kidney stones, and eventual renal failure. We have previously used positional cloning to identify the 3' part of a novel kidney-specific gene (initially termed hClC-K2, but now referred to as CLCN5), which is deleted in patients from one pedigree segregating Dent disease. Mutations that disrupt this gene have been identified in other patients with this disorder. Here we describe the isolation and characterization of the complete open reading frame of the human CLCN5 gene, which is predicted to encode a protein of 746 amino acids, with significant homology to all known members of the ClC family of voltage-gated chloride channels. CLCN5 belongs to a distinct branch of this family, which also includes the recently identified genes CLCN3 and CLCN4. We have shown that the coding region of CLCN5 is organized into 12 exons, spanning 25-30 kb of genomic DNA, and have determined the sequence of each exon-intron boundary. The elucidation of the coding sequence and exon-intron organization of CLCN5 will both expedite the evaluation of structure/function relationships of these ion channels and facilitate the screening of other patients with renal tubular dysfunction for mutations at this locus.
  • Fisher, S. E., Hatchwell, E., Chand, A., Ockenden, N., Monaco, A. P., & Craig, I. W. (1995). Construction of two YAC contigs in human Xp11.23-p11.22, one encompassing the loci OATL1, GATA, TFE3, and SYP, the other linking DXS255 to DXS146. Genomics, 29(2), 496-502. doi:10.1006/geno.1995.9976.

    Abstract

    We have constructed two YAC contigs in the Xp11.23-p11.22 interval of the human X chromosome, a region that was previously poorly characterized. One contig, of at least 1.4 Mb, links the pseudogene OATL1 to the genes GATA1, TFE3, and SYP and also contains loci implicated in Wiskott-Aldrich syndrome and synovial sarcoma. A second contig, mapping proximal to the first, is estimated to be over 2.1 Mb and links the hypervariable locus DXS255 to DXS146, and also contains a chloride channel gene that is responsible for hereditary nephrolithiasis. We have used plasmid rescue, inverse PCR, and Alu-PCR to generate 20 novel markers from this region, 1 of which is polymorphic, and have positioned these relative to one another on the basis of YAC analysis. The order of previously known markers within our contigs, Xpter-OATL1-GATA-TFE3-SYP-DXS255146- Xcen, agrees with genomic pulsed-field maps of the region. In addition, we have constructed a rare-cutter restriction map for a 710-kb region of the DXS255-DXS146 contig and have identified three CPG islands. These contigs and new markers will provide a useful resource for more detailed analysis of Xp11.23-p11.22, a region implicated in several genetic diseases.
  • Frauenfelder, U. H., & Cutler, A. (1985). Preface. Linguistics, 23(5). doi:10.1515/ling.1985.23.5.657.
  • Gullberg, M. (1995). Giving language a hand: gesture as a cue based communicative strategy. Working Papers, Lund University, Dept. of Linguistics, 44, 41-60.

    Abstract

    All accounts of communicative behaviour in general, and communicative strategies in particular, mention gesture1 in relation to language acquisition (cf. Faerch & Kasper 1983 for an overview). However, few attempts have been made to investigate how spoken language and spontaneous gesture combine to determine discourse referents. Referential gesture and referential discourse will be of particular interest, since communicative strategies in second language discourse often involve labelling problems. This paper will focus on two issues: 1) Within a cognitive account of communicative strategies, gesture will be seen to be part of conceptual or analysis-based strategies, in that relational features in the referents are exploited; 2) It will be argued that communication strategies can be seen in terms of cue manipulation in the same sense as sentence processing has been analysed in terms of competing cues. Strategic behaviour, and indeed the process of referring in general, are seen in terms of cues, combining or competing to determine discourse referents. Gesture can then be regarded as being such a cue at the discourse level, and as a cue-based communicative strategy, in that gesture functions by exploiting physically based cues which can be recognised as being part of the referent. The question of iconicity and motivation vs. the arbitrary qualities of gesture as a strategic cue will be addressed in connection with this.
  • Gullberg, M., & Holmqvist, K. (1999). Keeping an eye on gestures: Visual perception of gestures in face-to-face communication. Pragmatics & Cognition, 7(1), 35-63. doi:10.1075/pc.7.1.04gul.

    Abstract

    Since listeners usually look at the speaker's face, gestural information has to be absorbed through peripheral visual perception. In the literature, it has been suggested that listeners look at gestures under certain circumstances: 1) when the articulation of the gesture is peripheral; 2) when the speech channel is insufficient for comprehension; and 3) when the speaker him- or herself indicates that the gesture is worthy of attention. The research here reported employs eye tracking techniques to study the perception of gestures in face-to-face interaction. The improved control over the listener's visual channel allows us to test the validity of the above claims. We present preliminary findings substantiating claims 1 and 3, and relate them to theoretical proposals in the literature and to the issue of how visual and cognitive attention are related.
  • Hagoort, P. (1999). De toekomstige eeuw zonder psychologie. Psychologie Magazine, 18, 35-36.
  • Hagoort, P., & Brown, C. M. (1999). Gender electrified: ERP evidence on the syntactic nature of gender processing. Journal of Psycholinguistic Research, 28(6), 715-728. doi:10.1023/A:1023277213129.

    Abstract

    The central issue of this study concerns the claim that the processing of gender agreement in online sentence comprehension is a syntactic rather than a conceptual/semantic process. This claim was tested for the grammatical gender agreement in Dutch between the definite article and the noun. Subjects read sentences in which the definite article and the noun had the same gender and sentences in which the gender agreement was violated, While subjects read these sentences, their electrophysiological activity was recorded via electrodes placed on the scalp. Earlier research has shown that semantic and syntactic processing events manifest themselves in different event-related brain potential (ERP) effects. Semantic integration modulates the amplitude of the so-called N400.The P600/SPS is an ERP effect that is more sensitive to syntactic processes. The violation of grammatical gender agreement was found to result in a P600/SPS. For violations in sentence-final position, an additional increase of the N400 amplitude was observed. This N400 effect is interpreted as resulting from the consequence of a syntactic violation for the sentence-final wrap-up. The overall pattern of results supports the claim that the on-line processing of gender agreement information is not a content driven but a syntactic-form driven process.
  • Hagoort, P., Brown, C. M., & Swaab, T. Y. (1995). Semantic deficits in right hemisphere patients. Brain and Language, 51, 161-163. doi:10.1006/brln.1995.1058.
  • Hagoort, P., & Brown, C. M. (1999). The consequences of the temporal interaction between syntactic and semantic processes for haemodynamic studies of language. NeuroImage, 9, S1024-S1024.
  • Hagoort, P., Indefrey, P., Brown, C. M., Herzog, H., Steinmetz, H., & Seitz, R. J. (1999). The neural circuitry involved in the reading of german words and pseudowords: A PET study. Journal of Cognitive Neuroscience, 11(4), 383-398. doi:10.1162/089892999563490.

    Abstract

    Silent reading and reading aloud of German words and pseudowords were used in a PET study using (15O)butanol to examine the neural correlates of reading and of the phonological conversion of legal letter strings, with or without meaning. The results of 11 healthy, right-handed volunteers in the age range of 25 to 30 years showed activation of the lingual gyri during silent reading in comparison with viewing a fixation cross. Comparisons between the reading of words and pseudowords suggest the involvement of the middle temporal gyri in retrieving both the phonological and semantic code for words. The reading of pseudowords activates the left inferior frontal gyrus, including the ventral part of Broca’s area, to a larger extent than the reading of words. This suggests that this area might be involved in the sublexical conversion of orthographic input strings into phonological output codes. (Pre)motor areas were found to be activated during both silent reading and reading aloud. On the basis of the obtained activation patterns, it is hypothesized that the articulation of high-frequency syllables requires the retrieval of their concomitant articulatory gestures from the SMA and that the articulation of lowfrequency syllables recruits the left medial premotor cortex.
  • Hagoort, P., Ramsey, N., Rutten, G.-J., & Van Rijen, P. (1999). The role of the left anterior temporal cortex in language processing. Brain and Language, 69, 322-325. doi:10.1006/brln.1999.2169.
  • Heeschen, C., Ryalls, J., & Hagoort, P. (1988). Psychological stress in Broca's versus Wernicke's aphasia. Clinical Linguistics & Phonetics, 2, 309-316. doi:10.3109/02699208808985262.

    Abstract

    We advance the hypothesis here that the higher-than-average vocal pitch (FO) found for speech of Broca's aphasics in experimental settings is due, in part, to increased psychological stress. Two experiments were conducted which manipulated conversational constraints and the sentence forms to be produced by aphasic patients. Our study revealed significant differences between changes in vocal pitch of agrammatic Broca's aphasics versus those of Wernicke's aphasics and normal controls. It is suggested that the greater psychological stress experienced by the Broca's aphasics, but not by the Wernicke's aphasics, accounts for these observed differences.
  • Henderson, L., Coltheart, M., Cutler, A., & Vincent, N. (1988). Preface. Linguistics, 26(4), 519-520. doi:10.1515/ling.1988.26.4.519.
  • Heritage, J., & Stivers, T. (1999). Online commentary in acute medical visits: A method of shaping patient expectations. Social Science and Medicine, 49(11), 1501-1517. doi:10.1016/S0277-9536(99)00219-1.
  • Indefrey, P., & Levelt, W. J. M. (1999). A meta-analysis of neuroimaging experiments on word production. Neuroimage, 7, 1028.
  • Indefrey, P. (1999). Some problems with the lexical status of nondefault inflection. Behavioral and Brain Sciences, 22(6), 1025. doi:10.1017/S0140525X99342229.

    Abstract

    Clahsen's characterization of nondefault inflection as based exclusively on lexical entries does not capture the full range of empirical data on German inflection. In the verb system differential effects of lexical frequency seem to be input-related rather than affecting morphological production. In the noun system, the generalization properties of -n and -e plurals exceed mere analogy-based productivity.
  • Kempen, G. (1995). 'Hier spreekt men Nederlands'. EMNET: Nieuwsbrief Elektronische Media, 22, 1.
  • Kempen, G. (1973). [Review of the book Psycholinguïstiek by B. Tervoort et al.]. Nederlands Tijdschrift voor de Psychologie, 28, 172-174.
  • Kempen, G. (1995). Drinken eten mij Nim. Intermediair, 31(19), 41-45.
  • Kempen, G. (1995). De mythe van het woordbeeld: Spellingherziening taalpsychologisch doorgelicht. Onze Taal, 64(11), 275-277.
  • Kempen, G. (1999). Fiets en (centri)fuge. Onze Taal, 68, 88.
  • Kempen, G. (1995). IJ of Y? Onze Taal, 64(9), 205-206.
  • Kempen, G. (1995). Processing discontinuous lexical items: A reply to Frazier. Cognition, 55, 219-221. doi:10.1016/0010-0277(94)00657-7.

    Abstract

    Comments on a study by Frazier and others on Dutch-language lexical processing. Claims that the control condition in the experiment was inadequate and that an assumption made by Frazier about closed class verbal items is inaccurate, and proposes an alternative account of a subset of the data from the experiment
  • Kempen, G. (1995). Processing separable complex verbs in Dutch: Comments on Frazier, Flores d'Arcais, and Coolen (1993). Cognition, 54, 353-356. doi:10.1016/0010-0277(94)00649-6.

    Abstract

    Raises objections to L. Frazier et al's (see record 1994-32229-001) report of an experimental study intended to test Schreuder's (1990) Morphological Integration (MI) model concerning the processing of separable and inseparable verbs and shows that the logic of the experiment is flawed. The problem is rooted in the notion of a separable complex verb. The conclusion is drawn that Frazier et al's experimental data cannot be taken as evidence for the theoretical propositions they develop about the MI model.
  • Kempen, G. (1985). Psychologie 2000. Toegepaste psychologie in de informatiemaatschappij. Computers in de psychologie, 13-21.
  • Kempen, G. (1988). Preface. Acta Psychologica, 69(3), 205-206. doi:10.1016/0001-6918(88)90032-7.
  • Kempen, G. (1995). Van leescultuur en beeldcultuur naar internetcultuur. De Psycholoog, 30, 315-319.
  • Klein, W. (1995). A time-relational analysis of Russian aspect. Language, 71(4), 669-695.
  • Klein, W. (1973). Eine Analyse der Kerne in Schillers "Räuber". Cahiers de linguistique théorique et appliquée, 10, 195-200.
  • Klein, W. (1985). Einleitung. Zeitschrift für Literaturwissenschaft und Linguistik; Metzler, Stuttgart, 15(59), 7-8.
  • Klein, W. (1988). Einleitung. Zeitschrift für Literaturwissenschaft und Linguistik; Metzler, Stuttgart, 18(69), 7-8.
  • Klein, W. (Ed.). (1995). Epoche [Special Issue]. Zeitschrift für Literaturwissenschaft und Linguistik, (100).
  • Klein, W., & Musan, R. (Eds.). (1999). Das deutsche Perfekt [Special Issue]. Zeitschrift für Literaturwissenschaft und Linguistik, (113).
  • Klein, W. (1995). Das Vermächtnis der Geschichte, der Müll der Vergangenheit, oder: Wie wichtig ist zu wissen, was die Menschen früher getan oder geglaubt haben, für das, was wir jetzt tun oder glauben? Zeitschrift für Literaturwissenschaft und Linguistik; Metzler, Stuttgart, 100, 77-100.
  • Klein, W. (1985). Gesprochene Sprache - geschriebene Sprache. Zeitschrift für Literaturwissenschaft und Linguistik, 59, 9-35.
  • Klein, W. (Ed.). (1985). Schriftlichkeit [Special Issue]. Zeitschrift für Literaturwissenschaft und Linguistik, (59).
  • Klein, W. (1995). Literaturwissenschaft, Linguistik, LiLi. Zeitschrift für Literaturwissenschaft und Linguistik; Metzler, Stuttgart, (100), 1-10.
  • Klein, W. (Ed.). (1988). Sprache Kranker [Special Issue]. Zeitschrift für Literaturwissenschaft und Linguistik, (69).
  • Klein, W. (1988). Sprache und Krankheit: Ein paar Anmerkungen. Zeitschrift für Literaturwissenschaft und Linguistik, 69, 9-20.
  • Klein, W. (1999). Wie sich das deutsche Perfekt zusammensetzt. Zeitschrift für Literaturwissenschaft und Linguistik; Metzler, Stuttgart, (113), 52-85.
  • Levelt, C. C., Schiller, N. O., & Levelt, W. J. M. (1999). A developmental grammar for syllable structure in the production of child language. Brain and Language, 68, 291-299.

    Abstract

    The order of acquisition of Dutch syllable types by first language learners is analyzed as following from an initial ranking and subsequent rerankings of constraints in an optimality theoretic grammar. Initially, structural constraints are all ranked above faithfulness constraints, leading to core syllable (CV) productions only. Subsequently, faithfulness gradually rises to the highest position in the ranking, allowing more and more marked syllable types to appear in production. Local conjunctions of Structural constraints allow for a more detailed analysis.
  • Levelt, W. J. M., Roelofs, A., & Meyer, A. S. (1999). A theory of lexical access in speech production. Behavioral and Brain Sciences, 22, 1-38. doi:10.1017/S0140525X99001776.

    Abstract

    Preparing words in speech production is normally a fast and accurate process. We generate them two or three per second in fluent conversation; and overtly naming a clear picture of an object can easily be initiated within 600 msec after picture onset. The underlying process, however, is exceedingly complex. The theory reviewed in this target article analyzes this process as staged and feedforward. After a first stage of conceptual preparation, word generation proceeds through lexical selection, morphological and phonological encoding, phonetic encoding, and articulation itself. In addition, the speaker exerts some degree of output control, by monitoring of self-produced internal and overt speech. The core of the theory, ranging from lexical selection to the initiation of phonetic encoding, is captured in a computational model, called WEAVER + +. Both the theory and the computational model have been developed in interaction with reaction time experiments, particularly in picture naming or related word production paradigms, with the aim of accounting. for the real-time processing in normal word production. A comprehensive review of theory, model, and experiments is presented. The model can handle some of the main observations in the domain of speech errors (the major empirical domain for most other theories of lexical access), and the theory opens new ways of approaching the cerebral organization of speech production by way of high-temporal-resolution imaging.
  • Levelt, W. J. M. (1995). Hoezo 'neuro'? Hoezo 'linguïstisch'? Intermediair, 31(46), 32-37.
  • Levelt, W. J. M. (1973). Recente ontwikkelingen in de taalpsychologie. Forum der Letteren, 14(4), 235-254.
  • Levelt, W. J. M., Richardson, G., & La Heij, W. (1985). Pointing and voicing in deictic expressions. Journal of Memory and Language, 24, 133-164. doi:10.1016/0749-596X(85)90021-X.

    Abstract

    The present paper studies how, in deictic expressions, the temporal interdependency of speech and gesture is realized in the course of motor planning and execution. Two theoretical positions were compared. On the “interactive” view the temporal parameters of speech and gesture are claimed to be the result of feedback between the two systems throughout the phases of motor planning and execution. The alternative “ballistic” view, however, predicts that the two systems are independent during the phase of motor execution, the temporal parameters having been preestablished in the planning phase. In four experiments subjects were requested to indicate which of an array of referent lights was momentarily illuminated. This was done by pointing to the light and/or by using a deictic expression (this/that light). The temporal and spatial course of the pointing movement was automatically registered by means of a Selspot opto-electronic system. By analyzing the moments of gesture initiation and apex, and relating them to the moments of speech onset, it was possible to show that, for deictic expressions, the ballistic view is very nearly correct.
  • Levelt, W. J. M. (1988). Onder sociale wetenschappen. Mededelingen van de Afdeling Letterkunde, 51(2), 41-55.
  • Levelt, W. J. M. (1999). Models of word production. Trends in Cognitive Sciences, 3, 223-232.

    Abstract

    Research on spoken word production has been approached from two angles. In one research tradition, the analysis of spontaneous or induced speech errors led to models that can account for speech error distributions. In another tradition, the measurement of picture naming latencies led to chronometric models accounting for distributions of reaction times in word production. Both kinds of models are, however, dealing with the same underlying processes: (1) the speaker’s selection of a word that is semantically and syntactically appropriate; (2) the retrieval of the word’s phonological properties; (3) the rapid syllabification of the word in context; and (4) the preparation of the corresponding articulatory gestures. Models of both traditions explain these processes in terms of activation spreading through a localist, symbolic network. By and large, they share the main levels of representation: conceptual/semantic, syntactic, phonological and phonetic. They differ in various details, such as the amount of cascading and feedback in the network. These research traditions have begun to merge in recent years, leading to highly constructive experimentation. Currently, they are like two similar knives honing each other. A single pair of scissors is in the making.
  • Levelt, W. J. M., Roelofs, A., & Meyer, A. S. (1999). Multiple perspectives on lexical access [authors' response ]. Behavioral and Brain Sciences, 22, 61-72. doi:10.1017/S0140525X99451775.
  • Levelt, W. J. M., & Bonarius, M. (1973). Suffixes as deep structure clues. Methodology and Science, 6(1), 7-37.

    Abstract

    Recent work on sentence recognition suggests that listeners use their knowledge of the language to directly infer deep structure syntactic relations from surface structure markers. Suffixes may be such clues, especially in agglutinative languages. A cross-language (Dutch-Finnish) experiment is reported, designed to investigate whether the suffix structure of Finnish words (as opposed to suffixless Dutch words) can facilitate prompted recall of sentences in case these suffixes differentiate between possible deep structures. The experiment, in which 80 subjects recall sentences at the occasion of prompt words, gives only slight confirmatory evidence. Meanwhile, another prompted recall effect (Blumenthal's) could not be replicated.
  • Levelt, W. J. M. (1995). The ability to speak: From intentions to spoken words. European Review, 3(1), 13-23. doi:10.1017/S1062798700001290.

    Abstract

    In recent decades, psychologists have become increasingly interested in our ability to speak. This paper sketches the present theoretical perspective on this most complex skill of homo sapiens. The generation of fluent speech is based on the interaction of various processing components. These mechanisms are highly specialized, dedicated to performing specific subroutines, such as retrieving appropriate words, generating morpho-syntactic structure, computing the phonological target shape of syllables, words, phrases and whole utterances, and creating and executing articulatory programmes. As in any complex skill, there is a self-monitoring mechanism that checks the output. These component processes are targets of increasingly sophisticated experimental research, of which this paper presents a few salient examples.
  • Levinson, S. C. (1999). Maxim. Journal of Linguistic Anthropology, 9, 144-147. doi:10.1525/jlin.1999.9.1-2.144.
  • McQueen, J. M., Cutler, A., Briscoe, T., & Norris, D. (1995). Models of continuous speech recognition and the contents of the vocabulary. Language and Cognitive Processes, 10, 309-331. doi:10.1080/01690969508407098.

    Abstract

    Several models of spoken word recognition postulate that recognition is achieved via a process of competition between lexical hypotheses. Competition not only provides a mechanism for isolated word recognition, it also assists in continuous speech recognition, since it offers a means of segmenting continuous input into individual words. We present statistics on the pattern of occurrence of words embedded in the polysyllabic words of the English vocabulary, showing that an overwhelming majority (84%) of polysyllables have shorter words embedded within them. Positional analyses show that these embeddings are most common at the onsets of the longer word. Although both phonological and syntactic constraints could rule out some embedded words, they do not remove the problem. Lexical competition provides a means of dealing with lexical embedding. It is also supported by a growing body of experimental evidence. We present results which indicate that competition operates both between word candidates that begin at the same point in the input and candidates that begin at different points (McQueen, Norris, & Cutler, 1994, Noms, McQueen, & Cutler, in press). We conclude that lexical competition is an essential component in models of continuous speech recognition.
  • McQueen, J. M., Norris, D., & Cutler, A. (1999). Lexical influence in phonetic decision-making: Evidence from subcategorical mismatches. Journal of Experimental Psychology: Human Perception and Performance, 25, 1363-1389. doi:10.1037/0096-1523.25.5.1363.

    Abstract

    In 5 experiments, listeners heard words and nonwords, some cross-spliced so that they contained acoustic-phonetic mismatches. Performance was worse on mismatching than on matching items. Words cross-spliced with words and words cross-spliced with nonwords produced parallel results. However, in lexical decision and 1 of 3 phonetic decision experiments, performance on nonwords cross-spliced with words was poorer than on nonwords cross-spliced with nonwords. A gating study confirmed that there were misleading coarticulatory cues in the cross-spliced items; a sixth experiment showed that the earlier results were not due to interitem differences in the strength of these cues. Three models of phonetic decision making (the Race model, the TRACE model, and a postlexical model) did not explain the data. A new bottom-up model is outlined that accounts for the findings in terms of lexical involvement at a dedicated decision-making stage.
  • Mehta, G., & Cutler, A. (1988). Detection of target phonemes in spontaneous and read speech. Language and Speech, 31, 135-156.

    Abstract

    Although spontaneous speech occurs more frequently in most listeners’ experience than read speech, laboratory studies of human speech recognition typically use carefully controlled materials read from a script. The phonological and prosodic characteristics of spontaneous and read speech differ considerably, however, which suggests that laboratory results may not generalize to the recognition of spontaneous and read speech materials, and their response time to detect word-initial target phonemes was measured. Response were, overall, equally fast in each speech mode. However analysis of effects previously reported in phoneme detection studies revealed significant differences between speech modes. In read speech but not in spontaneous speech, later targets were detected more rapidly than earlier targets, and targets preceded by long words were detected more rapidly than targets preceded by short words. In contrast, in spontaneous speech but not in read speech, targets were detected more rapidly in accented than unaccented words and in strong than in weak syllables. An explanation for this pattern is offered in terms of characteristic prosodic differences between spontaneous and read speech. The results support claim from previous work that listeners pay great attention to prosodic information in the process of recognizing speech.
  • Meyer, A. S., & Bock, K. (1999). Representations and processes in the production of pronouns: Some perspectives from Dutch. Journal of Memory and Language, 41(2), 281-301. doi:doi:10.1006/jmla.1999.2649.

    Abstract

    The production and interpretation of pronouns involves the identification of a mental referent and, in connected speech or text, a discourse antecedent. One of the few overt signals of the relationship between a pronoun and its antecedent is agreement in features such as number and grammatical gender. To examine how speakers create these signals, two experiments tested conceptual, lexical. and morphophonological accounts of pronoun production in Dutch. The experiments employed sentence completion and continuation tasks with materials containing noun phrases that conflicted or agreed in grammatical gender. The noun phrases served as the antecedents for demonstrative pronouns tin Experiment 1) and relative pronouns tin Experiment 2) that required gender marking. Gender errors were used to assess the nature of the processes that established the link between pronouns and antecedents. There were more gender errors when candidate antecedents conflicted in grammatical gender, counter to the predictions of a pure conceptual hypothesis. Gender marking on candidate antecedents did not change the magnitude of this interference effect, counter to the predictions of an overt-morphology hypothesis. Mirroring previous findings about pronoun comprehension, the results suggest that speakers of gender-marking languages call on specific linguistic information about antecedents in order to select pronouns and that the information consists of specifications of grammatical gender associated with the lemmas of words.
  • Norris, D., McQueen, J. M., & Cutler, A. (1995). Competition and segmentation in spoken word recognition. Journal of Experimental Psychology: Learning, Memory, and Cognition, 21, 1209-1228.

    Abstract

    Spoken utterances contain few reliable cues to word boundaries, but listeners nonetheless experience little difficulty identifying words in continuous speech. The authors present data and simulations that suggest that this ability is best accounted for by a model of spoken-word recognition combining competition between alternative lexical candidates and sensitivity to prosodic structure. In a word-spotting experiment, stress pattern effects emerged most clearly when there were many competing lexical candidates for part of the input. Thus, competition between simultaneously active word candidates can modulate the size of prosodic effects, which suggests that spoken-word recognition must be sensitive both to prosodic structure and to the effects of competition. A version of the Shortlist model ( D. G. Norris, 1994b) incorporating the Metrical Segmentation Strategy ( A. Cutler & D. Norris, 1988) accurately simulates the results using a lexicon of more than 25,000 words.
  • Norris, D., & Cutler, A. (1985). Juncture detection. Linguistics, 23, 689-705.
  • Norris, D., & Cutler, A. (1988). Speech recognition in French and English. MRC News, 39, 30-31.
  • Norris, D., & Cutler, A. (1988). The relative accessibility of phonemes and syllables. Perception and Psychophysics, 43, 541-550. Retrieved from http://www.psychonomic.org/search/view.cgi?id=8530.

    Abstract

    Previous research comparing detection times for syllables and for phonemes has consistently found that syllables are responded to faster than phonemes. This finding poses theoretical problems for strictly hierarchical models of speech recognition, in which smaller units should be able to be identified faster than larger units. However, inspection of the characteristics of previous experiments’stimuli reveals that subjects have been able to respond to syllables on the basis of only a partial analysis of the stimulus. In the present experiment, five groups of subjects listened to identical stimulus material. Phoneme and syllable monitoring under standard conditions was compared with monitoring under conditions in which near matches of target and stimulus occurred on no-response trials. In the latter case, when subjects were forced to analyze each stimulus fully, phonemes were detected faster than syllables.
  • Osterhout, L., & Hagoort, P. (1999). A superficial resemblance does not necessarily mean you are part of the family: Counterarguments to Coulson, King and Kutas (1998) in the P600/SPS-P300 debate. Language and Cognitive Processes, 14, 1-14. doi:10.1080/016909699386356.

    Abstract

    Two recent studies (Coulson et al., 1998;Osterhout et al., 1996)examined the relationship between the event-related brain potential (ERP) responses to linguistic syntactic anomalies (P600/SPS) and domain-general unexpected events (P300). Coulson et al. concluded that these responses are highly similar, whereas Osterhout et al. concluded that they are distinct. In this comment, we evaluate the relativemerits of these claims. We conclude that the available evidence indicates that the ERP response to syntactic anomalies is at least partially distinct from the ERP response to unexpected anomalies that do not involve a grammatical violation
  • Otake, T., & Cutler, A. (1999). Perception of suprasegmental structure in a nonnative dialect. Journal of Phonetics, 27, 229-253. doi:10.1006/jpho.1999.0095.

    Abstract

    Two experiments examined the processing of Tokyo Japanese pitchaccent distinctions by native speakers of Japanese from two accentlessvariety areas. In both experiments, listeners were presented with Tokyo Japanese speech materials used in an earlier study with Tokyo Japanese listeners, who clearly exploited the pitch-accent information in spokenword recognition. In the "rst experiment, listeners judged from which of two words, di!ering in accentual structure, isolated syllables had been extracted. Both new groups were, overall, as successful at this task as Tokyo Japanese speakers had been, but their response patterns differed from those of the Tokyo Japanese, for instance in that a bias towards H judgments in the Tokyo Japanese responses was weakened in the present groups' responses. In a second experiment, listeners heard word fragments and guessed what the words were; in this task, the speakers from accentless areas again performed significantly above chance, but their responses showed less sensitivity to the information in the input, and greater bias towards vocabulary distribution frequencies, than had been observed with the Tokyo Japanese listeners. The results suggest that experience with a local accentless dialect affects the processing of accent for word recognition in Tokyo Japanese, even for listeners with extensive exposure to Tokyo Japanese.
  • Petersson, K. M., Elfgren, C., & Ingvar, M. (1999). Dynamic changes in the functional anatomy of the human brain during recall of abstract designs related to practice. Neuropsychologia, 37, 567-587.

    Abstract

    In the present PET study we explore some functional aspects of the interaction between attentional/control processes and learning/memory processes. The network of brain regions supporting recall of abstract designs were studied in a less practiced and in a well practiced state. The results indicate that automaticity, i.e., a decreased dependence on attentional and working memory resources, develops as a consequence of practice. This corresponds to the practice related decreases of activity in the prefrontal, anterior cingulate, and posterior parietal regions. In addition, the activity of the medial temporal regions decreased as a function of practice. This indicates an inverse relation between the strength of encoding and the activation of the MTL during retrieval. Furthermore, the pattern of practice related increases in the auditory, posterior insular-opercular extending into perisylvian supra marginal region, and the right mid occipito-temporal region, may reflect a lower degree of inhibitory attentional modulation of task irrelevant processing and more fully developed representations of the abstract designs, respectively. We also suggest that free recall is dependent on bilateral prefrontal processing, in particular non-automatic free recall. The present results cofirm previous functional neuroimaging studies of memory retrieval indicating that recall is subserved by a network of interacting brain regions. Furthermore, the results indicate that some components of the neural network subserving free recall may have a dynamic role and that there is a functional restructuring of the information processing networks during the learning process.
  • Petersson, K. M., Reis, A., Castro-Caldas, A., & Ingvar, M. (1999). Effective auditory-verbal encoding activates the left prefrontal and the medial temporal lobes: A generalization to illiterate subjects. NeuroImage, 10, 45-54. doi:10.1006/nimg.1999.0446.

    Abstract

    Recent event-related FMRI studies indicate that the prefrontal (PFC) and the medial temporal lobe (MTL) regions are more active during effective encoding than during ineffective encoding. The within-subject design and the use of well-educated young college students in these studies makes it important to replicate these results in other study populations. In this PET study, we used an auditory word-pair association cued-recall paradigm and investigated a group of healthy upper middle-aged/older illiterate women. We observed a positive correlation between cued-recall success and the regional cerebral blood flow of the left inferior PFC (BA 47) and the MTLs. Specifically, we used the cuedrecall success as a covariate in a general linear model and the results confirmed that the left inferior PFC and the MTLare more active during effective encoding than during ineffective encoding. These effects were observed during encoding of both semantically and phonologically related word pairs, indicating that these effects are robust in the studied population, that is, reproducible within group. These results generalize the results of Brewer et al. (1998, Science 281, 1185– 1187) and Wagner et al. (1998, Science 281, 1188–1191) to an upper middle aged/older illiterate population. In addition, the present study indicates that effective relational encoding correlates positively with the activity of the anterior medial temporal lobe regions.
  • Petersson, K. M., Elfgren, C., & Ingvar, M. (1999). Learning-related effects and functional neuroimaging. Human Brain Mapping, 7, 234-243. doi:10.1002/(SICI)1097-0193(1999)7:4<234:AID-HBM2>3.0.CO;2-O.

    Abstract

    A fundamental problem in the study of learning is that learning-related changes may be confounded by nonspecific time effects. There are several strategies for handling this problem. This problem may be of greater significance in functional magnetic resonance imaging (fMRI) compared to positron emission tomography (PET). Using the general linear model, we describe, compare, and discuss two approaches for separating learning-related from nonspecific time effects. The first approach makes assumptions on the general behavior of nonspecific effects and explicitly models these effects, i.e., nonspecific time effects are incorporated as a linear or nonlinear confounding covariate in the statistical model. The second strategy makes no a priori assumption concerning the form of nonspecific time effects, but implicitly controls for nonspecific effects using an interaction approach, i.e., learning effects are assessed with an interaction contrast. The two approaches depend on specific assumptions and have specific limitations. With certain experimental designs, both approaches may be used and the results compared, lending particular support to effects that are independent of the method used. A third and perhaps better approach that sometimes may be practically unfeasible is to use a completely temporally balanced experimental design. The choice of approach may be of particular importance when learning related effects are studied with fMRI.
  • Petersson, K. M., Nichols, T. E., Poline, J.-B., & Holmes, A. P. (1999). Statistical limitations in functional neuroimaging I: Non-inferential methods and statistical models. Philosofical Transactions of the Royal Soeciety B, 354, 1239-1260.
  • Petersson, K. M., Nichols, T. E., Poline, J.-B., & Holmes, A. P. (1999). Statistical limitations in functional neuroimaging II: Signal detection and statistical inference. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 354, 1261-1282.
  • Petrovic, P., Ingvar, M., Stone-Elander, S., Petersson, K. M., & Hansson, P. (1999). A PET activation study of dynamic mechanical allodynia in patients with mononeuropathy. Pain, 83, 459-470.

    Abstract

    The objective of this study was to investigate the central processing of dynamic mechanical allodynia in patients with mononeuropathy. Regional cerebral bloodflow, as an indicator of neuronal activity, was measured with positron emission tomography. Paired comparisons were made between three different states; rest, allodynia during brushing the painful skin area, and brushing of the homologous contralateral area. Bilateral activations were observed in the primary somatosensory cortex (S1) and the secondary somatosensory cortex (S2) during allodynia compared to rest. The S1 activation contralateral to the site of the stimulus was more expressed during allodynia than during innocuous touch. Significant activations of the contralateral posterior parietal cortex, the periaqueductal gray (PAG), the thalamus bilaterally and motor areas were also observed in the allodynic state compared to both non-allodynic states. In the anterior cingulate cortex (ACC) there was only a suggested activation when the allodynic state was compared with the non-allodynic states. In order to account for the individual variability in the intensity of allodynia and ongoing spontaneous pain, rCBF was regressed on the individually reported pain intensity, and significant covariations were observed in the ACC and the right anterior insula. Significantly decreased regional blood flow was observed bilaterally in the medial and lateral temporal lobe as well as in the occipital and posterior cingulate cortices when the allodynic state was compared to the non-painful conditions. This finding is consistent with previous studies suggesting attentional modulation and a central coping strategy for known and expected painful stimuli. Involvement of the medial pain system has previously been reported in patients with mononeuropathy during ongoing spontaneous pain. This study reveals a bilateral activation of the lateral pain system as well as involvement of the medial pain system during dynamic mechanical allodynia in patients with mononeuropathy.
  • Praamstra, P., Plat, E. M., Meyer, A. S., & Horstink, M. W. I. M. (1999). Motor cortex activation in Parkinson's disease: Dissociation of electrocortical and peripheral measures of response generation. Movement Disorders, 14, 790-799. doi:10.1002/1531-8257(199909)14:5<790:AID-MDS1011>3.0.CO;2-A.

    Abstract

    This study investigated characteristics of motor cortex activation and response generation in Parkinson's disease with measures of electrocortical activity (lateralized readiness potential [LRP]), electromyographic activity (EMG), and isometric force in a noise-compatibility task. When presented with stimuli consisting of incompatible target and distracter elements asking for responses of opposite hands, patients were less able than control subjects to suppress activation of the motor cortex controlling the wrong response hand. This was manifested in the pattern of reaction times and in an incorrect lateralization of the LRP. Onset latency and rise time of the LRP did not differ between patients and control subjects, but EMG and response force developed more slowly in patients. Moreover, in patients but not in control subjects, the rate of development of EMG and response force decreased as reaction time increased. We hypothesize that this dissociation between electrocortical activity and peripheral measures in Parkinson's disease is the result of changes in motor cortex function that alter the relation between signal-related and movement-related neural activity in the motor cortex. In the LRP, this altered balance may obscure an abnormal development of movement-related neural activity.
  • Rösler, D., & Skiba, R. (1988). Möglichkeiten für den Einsatz einer Lehrmaterial-Datenbank in der Lehrerfortbildung. Deutsch lernen, 14(1), 24-31.
  • Schmitt, B. M., Meyer, A. S., & Levelt, W. J. M. (1999). Lexical access in the production of pronouns. Cognition, 69(3), 313-335. doi:doi:10.1016/S0010-0277(98)00073-0.

    Abstract

    Speakers can use pronouns when their conceptual referents are accessible from the preceding discourse, as in 'The flower is red. It turns blue'. Theories of language production agree that in order to produce a noun semantic, syntactic, and phonological information must be accessed. However, little is known about lexical access to pronouns. In this paper, we propose a model of pronoun access in German. Since the forms of German pronouns depend on the grammatical gender of the nouns they replace, the model claims that speakers must access the syntactic representation of the replaced noun (its lemma) to select a pronoun. In two experiments using the lexical decision during naming paradigm [Levelt, W.J.M., Schriefers, H., Vorberg, D., Meyer, A.S., Pechmann, T., Havinga, J., 1991a. The time course of lexical access in speech production: a study of picture naming. Psychological Review 98, 122-142], we investigated whether lemma access automatically entails the activation of the corresponding word form or whether a word form is only activated when the noun itself is produced, but not when it is replaced by a pronoun. Experiment 1 showed that during pronoun production the phonological form of the replaced noun is activated. Experiment 2 demonstrated that this phonological activation was not a residual of the use of the noun in the preceding sentence. Thus, when a pronoun is produced, the lemma and the phonological form of the replaced noun become reactivated.

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