Gerard Kempen

Publications

Displaying 1 - 90 of 90
  • Udden, J., Hulten, A., Schoffelen, J.-M., Lam, N. H. L., Harbusch, K., Van den Bosch, A., Kempen, G., Petersson, K. M., & Hagoort, P. (2022). Supramodal sentence processing in the human brain: fMRI evidence for the influence of syntactic complexity in more than 200 participants. Neurobiology of Language, 3(4), 575-598. doi:10.1162/nol_a_00076.

    Abstract

    This study investigated two questions. One is: To what degree is sentence processing beyond single words independent of the input modality (speech vs. reading)? The second question is: Which parts of the network recruited by both modalities is sensitive to syntactic complexity? These questions were investigated by having more than 200 participants read or listen to well-formed sentences or series of unconnected words. A largely left-hemisphere frontotemporoparietal network was found to be supramodal in nature, i.e., independent of input modality. In addition, the left inferior frontal gyrus (LIFG) and the left posterior middle temporal gyrus (LpMTG) were most clearly associated with left-branching complexity. The left anterior temporal lobe (LaTL) showed the greatest sensitivity to sentences that differed in right-branching complexity. Moreover, activity in LIFG and LpMTG increased from sentence onset to end, in parallel with an increase of the left-branching complexity. While LIFG, bilateral anterior temporal lobe, posterior MTG, and left inferior parietal lobe (LIPL) all contribute to the supramodal unification processes, the results suggest that these regions differ in their respective contributions to syntactic complexity related processing. The consequences of these findings for neurobiological models of language processing are discussed.

    Additional information

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  • Kempen, G., & Harbusch, K. (2019). Mutual attraction between high-frequency verbs and clause types with finite verbs in early positions: Corpus evidence from spoken English, Dutch, and German. Language, Cognition and Neuroscience, 34(9), 1140-1151. doi:10.1080/23273798.2019.1642498.

    Abstract

    We report a hitherto unknown statistical relationship between the corpus frequency of finite verbs and their fixed linear positions (early vs. late) in finite clauses of English, Dutch, and German. Compared to the overall frequency distribution of verb lemmas in the corpora, high-frequency finite verbs are overused in main clauses, at the expense of nonfinite verbs. This finite versus nonfinite split of high-frequency verbs is basically absent from subordinate clauses. Furthermore, this “main-clause bias” (MCB) of high-frequency verbs is more prominent in German and Dutch (SOV languages) than in English (an SVO language). We attribute the MCB and its varying effect sizes to faster accessibility of high-frequency finite verbs, which (1) increases the probability for these verbs to land in clauses mandating early verb placement, and (2) boosts the activation of clause plans that assign verbs to early linear positions (in casu: clauses with SVO as opposed to SOV order).

    Additional information

    plcp_a_1642498_sm1530.pdf
  • Kempen, G., & Harbusch, K. (2018). A competitive mechanism selecting verb-second versus verb-final word order in causative and argumentative clauses of spoken Dutch: A corpus-linguistic study. Language Sciences, 69, 30-42. doi:10.1016/j.langsci.2018.05.005.

    Abstract

    In Dutch and German, the canonical order of subject, object(s) and finite verb is ‘verb-second’ (V2) in main but ‘verb-final’ (VF) in subordinate clauses. This occasionally leads to the production of noncanonical word orders. Familiar examples are causative and argumentative clauses introduced by a subordinating conjunction (Du. omdat, Ger. weil ‘because’): the omdat/weil-V2 phenomenon. Such clauses may also be introduced by coordinating conjunctions (Du. want, Ger. denn), which license V2 exclusively. However, want/denn-VF structures are unknown. We present the results of a corpus study on the incidence of omdat-V2 in spoken Dutch, and compare them to published data on weil-V2 in spoken German. Basic findings: omdat-V2 is much less frequent than weil-V2 (ratio almost 1:8); and the frequency relations between coordinating and subordinating conjunctions are opposite (want >> omdat; denn << weil). We propose that conjunction selection and V2/VF selection proceed partly independently, and sometimes miscommunicate—e.g. yielding omdat/weil paired with V2. Want/denn-VF pairs do not occur because want/denn clauses are planned as autonomous sentences, which take V2 by default. We sketch a simple feedforward neural network with two layers of nodes (representing conjunctions and word orders, respectively) that can simulate the observed data pattern through inhibition-based competition of the alternative choices within the node layers.
  • Kuiper, K., Bimesl, N., Kempen, G., & Ogino, M. (2017). Initial vs. non-initial placement of agent constructions in spoken clauses: A corpus-based study of language production under time pressure. Language Sciences, 64, 16-33. doi:10.1016/j.langsci.2017.06.001.

    Abstract

    In this exploratory study we test the hypothesis that the retrieval from memory of proper noun Agents (PNAs) under processing pressure causes a greater proportion of such semantic arguments to be placed to the right of the initial position in a clause than would be the case if such retrieval from memory were not necessary. This effect is manifest in sports commentary. Processing pressure on sports commentators is modulated by the speed at which the sport is played and reported. Non-initial placement is also facilitated by formulae which have slots in non-initial position. It follows that the non-initial placement of PNAs is not always semantically or pragmatically motivated. This finding therefore runs counter to a strong form of the functionalist hypothesis that syntactic choices available in the systemic structure of the syntax of a language offer solely semantic or pragmatic choices. It is an open question in a weak functionalist account of language and language use how processing and communicative functions interact in general.
  • Kempen, G., & Harbusch, K. (2016). Verb-second word order after German weil ‘because’: psycholinguistic theory from corpus-linguistic data. Glossa: a journal of general linguistics, 1(1): 3. doi:10.5334/gjgl.46.

    Abstract

    In present-day spoken German, subordinate clauses introduced by the connector weil ‘because’ occur with two orders of subject, finite verb, and object(s). In addition to weil clauses with verb-final word order (“VF”; standard in subordinate clauses) one often hears weil clauses with SVO, the standard order of main clauses (“verb-second”, V2). The “weil-V2” phenomenon is restricted to sentences where the weil clause follows the main clause, and is virtually absent from formal (written, edited) German, occurring only in extemporaneous speech. Extant accounts of weil-V2 focus on the interpretation of weil-V2 clauses by the hearer, in particular on the type of discourse relation licensed by weil-V2 vs. weil-VF: causal/propositional or inferential/epistemic. Focusing instead on the production of weil clauses by the speaker, we examine a collection of about 1,000 sentences featuring a causal connector (weil, da or denn) after the main clause, all extracted from a corpus of spoken German dialogues and annotated with tags denoting major prosodic and syntactic boundaries, and various types of disfluencies (pauses, hesitations). Based on the observed frequency patterns and on known linguistic properties of the connectors, we propose that weil-V2 is caused by miscoordination between the mechanisms for lexical retrieval and grammatical encoding: Due to its high frequency, the lexical item weil is often selected prematurely, while the grammatical encoder is still working on the syntactic shape of the weil clause. Weil-V2 arises when pragmatic and processing factors drive the encoder to discontinue the current sentence, and to plan the clause following weil in the form of the main clause of an independent, new sentence. Thus, the speaker continues with a V2 clause, seemingly in violation of the VF constraint imposed by the preceding weil. We also explore implications of the model regarding the interpretation of sentences containing causal connectors.
  • Van de Velde, M., Kempen, G., & Harbusch, K. (2015). Dative alternation and planning scope in spoken language: A corpus study on effects of verb bias in VO and OV clauses of Dutch. Lingua, 165, 92-108. doi:10.1016/j.lingua.2015.07.006.

    Abstract

    The syntactic structure of main and subordinate clauses is determined to a considerable extent by verb biases. For example, some English and Dutch ditransitive verbs have a preference for the prepositional object dative, whereas others are typically used with the double object dative. In this study, we compare the effect of these biases on structure selection in (S)VO and (S)OV dative clauses in the Corpus of Spoken Dutch (CGN). This comparison allowed us to make inferences about the size of the advance planning scope during spontaneous speaking: If the verb is an obligatory component of clause-level advance planning scope, as is claimed by the hypothesis of hierarchical incrementality, then biases should exert their influence on structure choices, regardless of early (VO) or late (OV) position of the verb in the clause. Conversely, if planning proceeds in a piecemeal fashion, strictly guided by lexical availability, as claimed by linear incrementality, then the verb and its associated biases can only influence structure choices in VO sentences. We tested these predictions by analyzing structure choices in the CGN, using mixed logit models. Our results support a combination of linear and hierarchical incrementality, showing a significant influence of verb bias on structure choices in VO, and a weaker (but still significant) effect in OV clauses
  • Kempen, G. (2014). Prolegomena to a neurocomputational architecture for human grammatical encoding and decoding. Neuroinformatics, 12, 111-142. doi:10.1007/s12021-013-9191-4.

    Abstract

    The study develops a neurocomputational architecture for grammatical processing in language production and language comprehension (grammatical encoding and decoding, respectively). It seeks to answer two questions. First, how is online syntactic structure formation of the complexity required by natural-language grammars possible in a fixed, preexisting neural network without the need for online creation of new connections or associations? Second, is it realistic to assume that the seemingly disparate instantiations of syntactic structure formation in grammatical encoding and grammatical decoding can run on the same neural infrastructure? This issue is prompted by accumulating experimental evidence for the hypothesis that the mechanisms for grammatical decoding overlap with those for grammatical encoding to a considerable extent, thus inviting the hypothesis of a single “grammatical coder.” The paper answers both questions by providing the blueprint for a syntactic structure formation mechanism that is entirely based on prewired circuitry (except for referential processing, which relies on the rapid learning capacity of the hippocampal complex), and can subserve decoding as well as encoding tasks. The model builds on the “Unification Space” model of syntactic parsing developed by Vosse & Kempen (2000, 2008, 2009). The design includes a neurocomputational mechanism for the treatment of an important class of grammatical movement phenomena.
  • Segaert, K., Kempen, G., Petersson, K. M., & Hagoort, P. (2013). Syntactic priming and the lexical boost effect during sentence production and sentence comprehension: An fMRI study. Brain and Language, 124, 174-183. doi:10.1016/j.bandl.2012.12.003.

    Abstract

    Behavioral syntactic priming effects during sentence comprehension are typically observed only if both the syntactic structure and lexical head are repeated. In contrast, during production syntactic priming occurs with structure repetition alone, but the effect is boosted by repetition of the lexical head. We used fMRI to investigate the neuronal correlates of syntactic priming and lexical boost effects during sentence production and comprehension. The critical measure was the magnitude of fMRI adaptation to repetition of sentences in active or passive voice, with or without verb repetition. In conditions with repeated verbs, we observed adaptation to structure repetition in the left IFG and MTG, for active and passive voice. However, in the absence of repeated verbs, adaptation occurred only for passive sentences. None of the fMRI adaptation effects yielded differential effects for production versus comprehension, suggesting that sentence comprehension and production are subserved by the same neuronal infrastructure for syntactic processing.

    Additional information

    Segaert_Supplementary_data_2013.docx
  • Kempen, G., Olsthoorn, N., & Sprenger, S. (2012). Grammatical workspace sharing during language production and language comprehension: Evidence from grammatical multitasking. Language and Cognitive Processes, 27, 345-380. doi:10.1080/01690965.2010.544583.

    Abstract

    Grammatical encoding and grammatical decoding (in sentence production and comprehension, respectively) are often portrayed as independent modalities of grammatical performance that only share declarative resources: lexicon and grammar. The processing resources subserving these modalities are supposed to be distinct. In particular, one assumes the existence of two workspaces where grammatical structures are assembled and temporarily maintained—one for each modality. An alternative theory holds that the two modalities share many of their processing resources and postulates a single mechanism for the online assemblage and short-term storage of grammatical structures: a shared workspace. We report two experiments with a novel “grammatical multitasking” paradigm: the participants had to read (i.e., decode) and to paraphrase (encode) sentences presented in fragments, responding to each input fragment as fast as possible with a fragment of the paraphrase. The main finding was that grammatical constraints with respect to upcoming input that emanate from decoded sentence fragments are immediately replaced by grammatical expectations emanating from the structure of the corresponding paraphrase fragments. This evidences that the two modalities have direct access to, and operate upon, the same (i.e., token-identical) grammatical structures. This is possible only if the grammatical encoding and decoding processes command the same, shared grammatical workspace. Theoretical implications for important forms of grammatical multitasking—self-monitoring, turn-taking in dialogue, speech shadowing, and simultaneous translation—are explored.
  • Kempen, G. (2009). Clausal coordination and coordinative ellipsis in a model of the speaker. Linguistics, 47(3), 653-696. doi:10.1515/LING.2009.022.

    Abstract

    This article presents a psycholinguistically inspired approach to the syntax of clause-level coordination and coordinate ellipsis. It departs from the assumption that coordinations are structurally similar to so-called appropriateness repairs — an important type of self-repairs in spontaneous speech. Coordinate structures and appropriateness repairs can both be viewed as “update” constructions. Updating is defined as a special sentence production mode that efficiently revises or augments existing sentential structure in response to modifications in the speaker's communicative intention. This perspective is shown to offer an empirically satisfactory and theoretically parsimonious account of two prominent types of coordinate ellipsis, in particular “forward conjunction reduction” (FCR) and “gapping” (including “long-distance gapping” and “subgapping”). They are analyzed as different manifestations of “incremental updating” — efficient updating of only part of the existing sentential structure. Based on empirical data from Dutch and German, novel treatments are proposed for both types of clausal coordinate ellipsis. The coordination-as-updating perspective appears to explain some general properties of coordinate structure: the existence of the well-known “coordinate structure constraint”, and the attractiveness of three-dimensional representations of coordination. Moreover, two other forms of coordinate ellipsis — SGF (“subject gap in finite clauses with fronted verb”), and “backward conjunction reduction” (BCR) (also known as “right node raising” or RNR) — are shown to be incompatible with the notion of incremental updating. Alternative theoretical interpretations of these phenomena are proposed. The four types of clausal coordinate ellipsis — SGF, gapping, FCR and BCR — are argued to originate in four different stages of sentence production: Intending (i.e., preparing the communicative intention), conceptualization, grammatical encoding, and phonological encoding, respectively.
  • Snijders, T. M., Vosse, T., Kempen, G., Van Berkum, J. J. A., Petersson, K. M., & Hagoort, P. (2009). Retrieval and unification of syntactic structure in sentence comprehension: An fMRI study using word-category ambiguity. Cerebral Cortex, 19, 1493-1503. doi:10.1093/cercor/bhn187.

    Abstract

    Sentence comprehension requires the retrieval of single word information from long-term memory, and the integration of this information into multiword representations. The current functional magnetic resonance imaging study explored the hypothesis that the left posterior temporal gyrus supports the retrieval of lexical-syntactic information, whereas left inferior frontal gyrus (LIFG) contributes to syntactic unification. Twenty-eight subjects read sentences and word sequences containing word-category (noun–verb) ambiguous words at critical positions. Regions contributing to the syntactic unification process should show enhanced activation for sentences compared to words, and only within sentences display a larger signal for ambiguous than unambiguous conditions. The posterior LIFG showed exactly this predicted pattern, confirming our hypothesis that LIFG contributes to syntactic unification. The left posterior middle temporal gyrus was activated more for ambiguous than unambiguous conditions (main effect over both sentences and word sequences), as predicted for regions subserving the retrieval of lexical-syntactic information from memory. We conclude that understanding language involves the dynamic interplay between left inferior frontal and left posterior temporal regions.

    Additional information

    suppl1.pdf suppl2_dutch_stimulus.pdf
  • Vosse, T., & Kempen, G. (2009). In defense of competition during syntactic ambiguity resolution. Journal of Psycholinguistic Research, 38(1), 1-9. doi:10.1007/s10936-008-9075-1.

    Abstract

    In a recent series of publications (Traxler et al. J Mem Lang 39:558–592, 1998; Van Gompel et al. J Mem Lang 52:284–307, 2005; see also Van Gompel et al. (In: Kennedy, et al.(eds) Reading as a perceptual process, Oxford, Elsevier pp 621–648, 2000); Van Gompel et al. J Mem Lang 45:225–258, 2001) eye tracking data are reported showing that globally ambiguous (GA) sentences are read faster than locally ambiguous (LA) counterparts. They argue that these data rule out “constraint-based” models where syntactic and conceptual processors operate concurrently and syntactic ambiguity resolution is accomplished by competition. Such models predict the opposite pattern of reading times. However, this argument against competition is valid only in conjunction with two standard assumptions in current constraint-based models of sentence comprehension: (1) that syntactic competitions (e.g., Which is the best attachment site of the incoming constituent?) are pooled together with conceptual competitions (e.g., Which attachment site entails the most plausible meaning?), and (2) that the duration of a competition is a function of the overall (pooled) quality score obtained by each competitor. We argue that it is not necessary to abandon competition as a successful basis for explaining parsing phenomena and that the above-mentioned reading time data can be accounted for by a parallel-interactive model with conceptual and syntactic processors that do not pool their quality scores together. Within the individual linguistic modules, decision-making can very well be competition-based.
  • Vosse, T., & Kempen, G. (2009). The Unification Space implemented as a localist neural net: Predictions and error-tolerance in a constraint-based parser. Cognitive Neurodynamics, 3, 331-346. doi:10.1007/s11571-009-9094-0.

    Abstract

    We introduce a novel computer implementation of the Unification-Space parser (Vosse & Kempen 2000) in the form of a localist neural network whose dynamics is based on interactive activation and inhibition. The wiring of the network is determined by Performance Grammar (Kempen & Harbusch 2003), a lexicalist formalism with feature unification as binding operation. While the network is processing input word strings incrementally, the evolving shape of parse trees is represented in the form of changing patterns of activation in nodes that code for syntactic properties of words and phrases, and for the grammatical functions they fulfill. The system is capable, at least in a qualitative and rudimentary sense, of simulating several important dynamic aspects of human syntactic parsing, including garden-path phenomena and reanalysis, effects of complexity (various types of clause embeddings), fault-tolerance in case of unification failures and unknown words, and predictive parsing (expectation-based analysis, surprisal effects). English is the target language of the parser described.
  • Kuiper, K., Van Egmond, M.-E., Kempen, G., & Sprenger, S. A. (2007). Slipping on superlemmas: Multiword lexical items in speech production. The Mental Lexicon, 2(3), 313-357.

    Abstract

    Only relatively recently have theories of speech production concerned themselves with the part idioms and other multi-word lexical items (MLIs) play in the processes of speech production. Two theories of speech production which attempt to account for the accessing of idioms in speech production are those of Cutting and Bock (1997) and superlemma theory (Sprenger, 2003; Sprenger, Levelt, & Kempen, 2006). Much of the data supporting theories of speech production comes either from time course experiments or from slips of the tongue (Bock & Levelt, 1994). The latter are of two kinds: experimentally induced (Baars, 1992) or naturally observed (Fromkin, 1980). Cutting and Bock use experimentally induced speech errors while Sprenger et al. use time course experiments. The missing data type that has a bearing on speech production involving MLIs is that of naturally occurring slips. In this study the impact of data taken from naturally observed slips involving English and Dutch MLIs are brought to bear on these theories. The data are taken initially from a corpus of just over 1000 naturally observed English slips involving MLIs (the Tuggy corpus). Our argument proceeds as follows. First we show that slips occur independent of whether or not there are MLIs involved. In other words, speech production proceeds in certain of its aspects as though there were no MLI present. We illustrate these slips from the Tuggy data. Second we investigate the predictions of superlemma theory. Superlemma theory (Sprenger et al., 2006) accounts for the selection of MLIs and how their properties enter processes of speech production. It predicts certain activation patterns dependent on a MLI being selected. Each such pattern might give rise to slips of the tongue. This set of predictions is tested against the Tuggy data. Each of the predicted activation patterns yields a significant number of slips. These findings are therefore compatible with a view of MLIs as single units in so far as their activation by lexical concepts goes. However, the theory also predicts that some slips are likely not to occur. We confirm that such slips are not present in the data. These findings are further corroborated by reference a second smaller dataset of slips involving Dutch MLIs (the Kempen corpus). We then use slips involving irreversible binomials to distinguish between the predictions of superlemma theory which are supported by slips involving irreversible binomials and the Cutting and Bock model's predictions for slips involving these MLIs which are not
  • Sprenger, S. A., Levelt, W. J. M., & Kempen, G. (2006). Lexical access during the production of idiomatic phrases. Journal of Memory and Language, 54(2), 161-184. doi:10.1016/j.jml.2005.11.001.

    Abstract

    In three experiments we test the assumption that idioms have their own lexical entry, which is linked to its constituent lemmas (Cutting & Bock, 1997). Speakers produced idioms or literal phrases (Experiment 1), completed idioms (Experiment 2), or switched between idiom completion and naming (Experiment 3). The results of Experiment 1 show that identity priming speeds up idiom production more effectively than literal phrase production, indicating a hybrid representation of idioms. In Experiment 2, we find effects of both phonological and semantic priming. Thus, elements of an idiom can not only be primed via their wordform, but also via the conceptual level. The results of Experiment 3 show that preparing the last word of an idiom primes naming of both phonologically and semantically related targets, indicating that literal word meanings become active during idiom production. The results are discussed within the framework of the hybrid model of idiom representation.
  • Kempen, G., & Harbusch, K. (2003). An artificial opposition between grammaticality and frequency: Comment on Bornkessel, Schlesewsky & Friederici (2002). Cognition, 90(2), 205-210 [Rectification on p. 215]. doi:10.1016/S0010-0277(03)00145-8.

    Abstract

    In a recent Cognition paper (Cognition 85 (2002) B21), Bornkessel, Schlesewsky, and Friederici report ERP data that they claim “show that online processing difficulties induced by word order variations in German cannot be attributed to the relative infrequency of the constructions in question, but rather appear to reflect the application of grammatical principles during parsing” (p. B21). In this commentary we demonstrate that the posited contrast between grammatical principles and construction (in)frequency as sources of parsing problems is artificial because it is based on factually incorrect assumptions about the grammar of German and on inaccurate corpus frequency data concerning the German constructions involved.
  • Kempen, G. (2000). Could grammatical encoding and grammatical decoding be subserved by the same processing module? Behavioral and Brain Sciences, 23, 38-39.
  • Vosse, T., & Kempen, G. (2000). Syntactic structure assembly in human parsing: A computational model based on competitive inhibition and a lexicalist grammar. Cognition, 75, 105-143.

    Abstract

    We present the design, implementation and simulation results of a psycholinguistic model of human syntactic processing that meets major empirical criteria. The parser operates in conjunction with a lexicalist grammar and is driven by syntactic information associated with heads of phrases. The dynamics of the model are based on competition by lateral inhibition ('competitive inhibition'). Input words activate lexical frames (i.e. elementary trees anchored to input words) in the mental lexicon, and a network of candidate 'unification links' is set up between frame nodes. These links represent tentative attachments that are graded rather than all-or-none. Candidate links that, due to grammatical or 'treehood' constraints, are incompatible, compete for inclusion in the final syntactic tree by sending each other inhibitory signals that reduce the competitor's attachment strength. The outcome of these local and simultaneous competitions is controlled by dynamic parameters, in particular by the Entry Activation and the Activation Decay rate of syntactic nodes, and by the Strength and Strength Build-up rate of Unification links. In case of a successful parse, a single syntactic tree is returned that covers the whole input string and consists of lexical frames connected by winning Unification links. Simulations are reported of a significant range of psycholinguistic parsing phenomena in both normal and aphasic speakers of English: (i) various effects of linguistic complexity (single versus double, center versus right-hand self-embeddings of relative clauses; the difference between relative clauses with subject and object extraction; the contrast between a complement clause embedded within a relative clause versus a relative clause embedded within a complement clause); (ii) effects of local and global ambiguity, and of word-class and syntactic ambiguity (including recency and length effects); (iii) certain difficulty-of-reanalysis effects (contrasts between local ambiguities that are easy to resolve versus ones that lead to serious garden-path effects); (iv) effects of agrammatism on parsing performance, in particular the performance of various groups of aphasic patients on several sentence types.
  • Kempen, G. (1999). Fiets en (centri)fuge. Onze Taal, 68, 88.
  • Kempen, G. (1998). Comparing and explaining the trajectories of first and second language acquisition: In search of the right mix of psychological and linguistic factors [Commentory]. Bilingualism: Language and Cognition, 1, 29-30. doi:10.1017/S1366728998000066.

    Abstract

    When you compare the behavior of two different age groups which are trying to master the same sensori-motor or cognitive skill, you are likely to discover varying learning routes: different stages, different intervals between stages, or even different orderings of stages. Such heterogeneous learning trajectories may be caused by at least six different types of factors: (1) Initial state: the kinds and levels of skills the learners have available at the onset of the learning episode. (2) Learning mechanisms: rule-based, inductive, connectionist, parameter setting, and so on. (3) Input and feedback characteristics: learning stimuli, information about success and failure. (4) Information processing mechanisms: capacity limitations, attentional biases, response preferences. (5) Energetic variables: motivation, emotional reactions. (6) Final state: the fine-structure of kinds and levels of subskills at the end of the learning episode. This applies to language acquisition as well. First and second language learners probably differ on all six factors. Nevertheless, the debate between advocates and opponents of the Fundamental Difference Hypothesis concerning L1 and L2 acquisition have looked almost exclusively at the first two factors. Those who believe that L1 learners have access to Universal Grammar whereas L2 learners rely on language processing strategies, postulate different learning mechanisms (UG parameter setting in L1, more general inductive strategies in L2 learning). Pienemann opposes this view and, based on his Processability Theory, argues that L1 and L2 learners start out from different initial states: they come to the grammar learning task with different structural hypotheses (SOV versus SVO as basic word order of German).
  • Kempen, G. (1997). Van taalbarrières naar linguïstische snelwegen: Inrichting van een technische taalinfrastructuur voor het Nederlands. Grenzen aan veeltaligheid: Taalgebruik en bestuurlijke doeltreffendheid in de instellingen van de Europese Unie, 43-48.
  • Kempen, G. (1996). Lezen, leren lezen, dyslexie: De auditieve basis van visuele woordherkenning. Nederlands Tijdschrift voor de Psychologie, 51, 91-100.
  • Kempen, G. (1996). Wetenschap op internet: Een voorstel voor de Nederlandse Psychonomie. Nieuwsbrief Nederlandse Vereniging voor Psychonomie, 3, 5-8.
  • Kempen, G. (1995). De mythe van het woordbeeld: Spellingherziening taalpsychologisch doorgelicht. Onze Taal, 64(11), 275-277.
  • Kempen, G. (1995). Drinken eten mij Nim. Intermediair, 31(19), 41-45.
  • Kempen, G. (1995). 'Hier spreekt men Nederlands'. EMNET: Nieuwsbrief Elektronische Media, 22, 1.
  • 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. (1995). Van leescultuur en beeldcultuur naar internetcultuur. De Psycholoog, 30, 315-319.
  • Kempen, G. (1994). De mythe van het woordbeeld: Spellingherziening taalpsychologisch doorgelicht. Spektator, tijdschrift voor Neerlandistiek, 23, 292-301.
  • Kempen, G. (1994). In de grammaticadiscussie is de empirie aan zet. Levende Talen, 486, 27-28.
  • Kempen, G. (1994). Klare taal: Zicht op zinsbouw. Natuur en Techniek, 62, 380-391.
  • Kempen, G. (1994). Nederlands als computertaal. EMNET: Nieuwsbrief Elektronische Media, 2, 9-12.
  • Diesveld, P., & Kempen, G. (1993). Zinnen als bouwwerken: Computerprogramma's voor grammatica-oefeningen. MOER, Tijdschrift voor onderwijs in het Nederlands, 1993(4), 130-138.
  • Kempen, G. (1993). Mensentaal als computertaal. Onze Taal, 62, 275-277.
  • Kempen, G. (1993). Zinsontleding kan een exact vak worden. Levende Talen, 483, 459-462.
  • Kempen, G. (1992). Grammar based text processing. Document Management: Nieuwsbrief voor Documentaire Informatiekunde, 1(2), 8-10.
  • Kempen, G. (1991). Conjunction reduction and gapping in clause-level coordination: An inheritance-based approach. Computational Intelligence, 7, 357-360. doi:10.1111/j.1467-8640.1991.tb00406.x.
  • Van der Veer, G. C., Bagnara, S., & Kempen, G. (1991). Preface. Acta Psychologica, 78, ix. doi:10.1016/0001-6918(91)90002-H.
  • Kempen, G. (1990). Een slordig gestapeld servies [Review of the book Tranen van de krokodil by Piet Vroon]. Intermediair, 26(17), 67-69.
  • Kempen, G. (1990). Microcomputers en cognitiewetenschap. SURF: Tijdschrift over Computerdienstverlening in het Hoger Onderwijs en Onderzoek, 4(3), 2.
  • Kempen, G., & Jongen-Janner, E. (1990). Naar een flexibele methode voor algoritmisch grammatica- en spellingonderwijs. Pedagogisch Tijdschrift, 15, 280-289.
  • Kempen, G. (1990). Representation in memory: Volume 2, chapter 8, pp. 511–587 by David E. Rumelhart and Donald A. Norman [Book review]. Acta Psychologica, 75, 191-192. doi:10.1016/0001-6918(90)90107-Q.
  • Kempen, G. (1990). Taaltechnologie en de toekomst van tekstautomatisering. Informatie, 32, 724-727.
  • Kempen, G., & Vosse, T. (1989). Incremental syntactic tree formation in human sentence processing: A cognitive architecture based on activation decay and simulated annealing. Connection Science, 1(3), 273-290. doi:10.1080/09540098908915642.

    Abstract

    A new cognitive architecture is proposed for the syntactic aspects of human sentence processing. The architecture, called Unification Space, is biologically inspired but not based on neural nets. Instead it relies on biosynthesis as a basic metaphor. We use simulated annealing as an optimization technique which searches for the best configuration of isolated syntactic segments or subtrees in the final parse tree. The gradually decaying activation of individual syntactic nodes determines the ‘global excitation level’ of the system. This parameter serves the function of ‘computational temperature’ in simulated annealing. We have built a computer implementation of the architecture which simulates well-known sentence understanding phenomena. We report successful simulations of the psycholinguistic effects of clause embedding, minimal attachment, right association and lexical ambiguity. In addition, we simulated impaired sentence understanding as observable in agrammatic patients. Since the Unification Space allows for contextual (semantic and pragmatic) influences on the syntactic tree formation process, it belongs to the class of interactive sentence processing models.
  • Kempen, G. (1988). Preface. Acta Psychologica, 69(3), 205-206. doi:10.1016/0001-6918(88)90032-7.
  • Kempen, G., Anbeek, G., Desain, P., Konst, L., & De Smedt, K. (1987). Auteursomgevingen: Vijfde-generatie tekstverwerkers. Informatie, 29, 988-993.
  • Kempen, G., & Hoenkamp, E. (1987). An incremental procedural grammar for sentence formulation. Cognitive Science, 11(2), 201-258.

    Abstract

    This paper presents a theory of the syntactic aspects of human sentence production. An important characteristic of unprepared speech is that overt pronunciation of a sentence can be initiated before the speaker has completely worked out the meaning content he or she is going to express in that sentence. Apparently, the speaker is able to build up a syntactically coherent utterance out of a series of syntactic fragments each rendering a new part of the meaning content. This incremental, left-to-right mode of sentence production is the central capability of the proposed Incremental Procedural Grammar (IPG). Certain other properties of spontaneous speech, as derivable from speech errors, hesitations, self-repairs, and language pathology, are accounted for as well. The psychological plausibility thus gained by the grammar appears compatible with a satisfactory level of linguistic plausibility in that sentences receive structural descriptions which are in line with current theories of grammar. More importantly, an explanation for the existence of configurational conditions on transformations and other linguistics rules is proposed. The basic design feature of IPG which gives rise to these psychologically and linguistically desirable properties, is the “Procedures + Stack” concept. Sentences are built not by a central constructing agency which overlooks the whole process but by a team of syntactic procedures (modules) which work-in parallel-on small parts of the sentence, have only a limited overview, and whose sole communication channel is a stock. IPG covers object complement constructions, interrogatives, and word order in main and subordinate clauses. It handles unbounded dependencies, cross-serial dependencies and coordination phenomena such as gapping and conjunction reduction. It is also capable of generating self-repairs and elliptical answers to questions. IPG has been implemented as an incremental Dutch sentence generator written in LISP.
  • Kempen, G. (1987). Tekstverwerking: De vijfde generatie. Informatie, 29, 402-406.
  • Pijls, F., Daelemans, W., & Kempen, G. (1987). Artificial intelligence tools for grammar and spelling instruction. Instructional Science, 16(4), 319-336. doi:10.1007/BF00117750.

    Abstract

    In The Netherlands, grammar teaching is an especially important subject in the curriculum of children aged 10-15 for several reasons. However, in spite of all attention and time invested, the results are poor. This article describes the problems and our attempt to overcome them by developing an intelligent computational instructional environment consisting of: a linguistic expert system, containing a module representing grammar and spelling rules and a number of modules to manipulate these rules; a didactic module; and a student interface with special facilities for grammar and spelling. Three prototypes of the functionality are discussed: BOUWSTEEN and COGO, which are programs for constructing and analyzing Dutch sentences; and TDTDT, a program for the conjugation of Dutch verbs.
  • Pijls, F., & Kempen, G. (1987). Kennistechnologische leermiddelen in het grammatica- en spellingonderwijs. Nederlands Tijdschrift voor de Psychologie, 42, 354-363.
  • Van Wijk, C., & Kempen, G. (1987). A dual system for producing self-repairs in spontaneous speech: Evidence from experimentally elicited corrections. Cognitive Psychology, 19, 403-440. doi:10.1016/0010-0285(87)90014-4.

    Abstract

    This paper presents a cognitive theory on the production and shaping of selfrepairs during speaking. In an extensive experimental study, a new technique is tried out: artificial elicitation of self-repairs. The data clearly indicate that two mechanisms for computing the shape of self-repairs should be distinguished. One is based on the repair strategy called reformulation, the second one on lemma substitution. W. Levelt’s (1983, Cognition, 14, 41- 104) well-formedness rule, which connects self-repairs to coordinate structures, is shown to apply only to reformulations. In case of lemma substitution, a totally different set of rules is at work. The linguistic unit of central importance in reformulations is the major syntactic constituent; in lemma substitutions it is a prosodic unit. the phonological phrase. A parametrization of the model yielded a very satisfactory fit between observed and reconstructed scores.
  • Kempen, G., & Kolk, H. (1986). Het voortbrengen van normale en agrammatische taal. Van Horen Zeggen, 27(2), 36-40.
  • Kempen, G. (1986). RIKS: Kennistechnologisch centrum voor bedrijfsleven en wetenschap. Informatie, 28, 122-125.
  • Pijls, F., & Kempen, G. (1986). Een psycholinguïstisch model voor grammatische samentrekking. De Nieuwe Taalgids, 79, 217-234.
  • 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.
  • Kempen, G. (1985). Psychologie 2000. Toegepaste psychologie in de informatiemaatschappij. Computers in de psychologie, 13-21.
  • Kempen, G. (1984). Taaltechnologie voor het Nederlands: Vorderingen bij de bouw van een Nederlandstalig dialoog- en auteursysteem. Toegepaste Taalwetenschap in Artikelen, 19, 48-58.
  • Kempen, G., Konst, L., & De Smedt, K. (1984). Taaltechnologie voor het Nederlands: Vorderingen bij de bouw van een Nederlandstalig dialoog- en auteursysteem. Informatie, 26, 878-881.
  • Kempen, G., & Huijbers, P. (1983). The lexicalization process in sentence production and naming: Indirect election of words. Cognition, 14(2), 185-209. doi:10.1016/0010-0277(83)90029-X.

    Abstract

    A series of experiments is reported in which subjects describe simple visual scenes by means of both sentential and non-sentential responses. The data support the following statements about the lexicalization (word finding) process. (1) Words used by speakers in overt naming or sentence production responses are selected by a sequence of two lexical retrieval processes, the first yielding abstract pre-phonological items (Ll -items), the second one adding their phonological shapes (L2-items). (2) The selection of several Ll-items for a multi-word utterance can take place simultaneously. (3) A monitoring process is watching the output of Ll-lexicalization to check if it is in keeping with prevailing constraints upon utterance format. (4) Retrieval of the L2-item which corresponds with a given LI-item waits until the Ld-item has been checked by the monitor, and all other Ll-items needed for the utterance under construction have become available. A coherent picture of the lexicalization process begins to emerge when these characteristics are brought together with other empirical results in the area of naming and sentence production, e.g., picture naming reaction times (Seymour, 1979), speech errors (Garrett, 1980), and word order preferences (Bock, 1982).
  • Kempen, G. (1983). Wat betekent taalvaardigheid voor informatiesystemen? TNO project: Maandblad voor toegepaste wetenschappen, 11, 401-403.
  • Kempen, G., Schotel, H., & Hoenkamp, E. (1982). Analyse-door-synthese van Nederlandse zinnen [Abstract]. De Psycholoog, 17, 509.
  • Van Wijk, C., & Kempen, G. (1982). De ontwikkeling van syntactische formuleervaardigheid bij kinderen van 9 tot 16 jaar. Nederlands Tijdschrift voor de Psychologie en haar Grensgebieden, 37(8), 491-509.

    Abstract

    An essential phenomenon in the development towards syntactic maturity after early childhood is the increasing use of so-called sentence-combining transformations. Especially by using subordination, complex sentences are produced. The research reported here is an attempt to arrive at a more adequate characterization and explanation. Our starting point was an analysis of 280 texts written by Dutch-speaking pupils of the two highest grades of the primary school and the four lowest grades of three different types of secondary education. It was examined whether systematic shifts in the use of certain groups of so-called function words could be traced. We concluded that the development of the syntactic formulating ability can be characterized as an increase in connectivity: the use of all kinds of function words which explicitly mark logico-semantic relations between propositions. This development starts by inserting special adverbs and coordinating conjunctions resulting in various types of coordination. In a later stage, the syntactic patterning of the sentence is affected as well (various types of subordination). The increase in sentence complexity is only one aspect of the entire development. An explanation for the increase in connectivity is offered based upon a distinction between narrative and expository language use. The latter, but not the former, is characterized by frequent occurrence of connectives. The development in syntactic formulating ability includes a high level of skill in expository language use. Speed of development is determined by intensity of training, e.g. in scholastic and occupational settings.
  • Van Wijk, C., & Kempen, G. (1982). Syntactische formuleervaardigheid en het schrijven van opstellen. Pedagogische Studiën, 59, 126-136.

    Abstract

    Meermalen is getracht om syntactische formuleenuuirdigheid direct en objectief te meten aan de hand van gesproken of geschreven teksten. Uitgangspunt hierbij vormde in de regel de syntactische complexiteit van de geproduceerde taaluitingen. Dit heeft echter niet geleid tot een plausibele, duidelijk omschreven en praktisch bruikbare index. N.a.v. een kritische bespreking van de notie complexiteit wordt in dit artikel als nieuw criterium voorgesteld de connectiviteit van de taaluitingen; de expliciete aanduiding van logiscli-scmantische relaties tussen proposities. Connectiviteit is gemakkelijk scoorbaar aan de hand van functiewoorden die verschillende vormen van nevenschikkend en onderschikkend zinsverband markeren. Deze nieuwe index ondetrangt de kritiek die op complexiteit gegeven kon worden, blijkt duidelijk te discrimineren tussen groepen leerlingen die van elkaar verschillen naar leeftijd en opleidingsniveau, en sluit aan bij recente taalpsychologische en sociolinguïstische theorie. Tot besluit worden enige onderwijskundige implicaties aangegeven.
  • Kempen, G. (1981). De architectuur van het spreken. TTT: Interdisciplinair Tijdschrift voor Taal & Tekstwetenschap, 1, 110-123.
  • Kempen, G., & Van Wijk, C. (1981). Leren formuleren: Hoe uit opstellen een objektieve index voor formuleervaardigheid afgeleid kan worden. Tijdschrift voor Taalbeheersing, 3, 32-44.
  • Kempen, G., & Fokkema, S. (1981). Ten geleide. Nederlands Tijdschrift voor de Psychologie en haar Grensgebieden, 36, 345-346.
  • Van Wijk, C., & Kempen, G. (1981). Het effect van sociale klasse en gesprekssituatie op het gebruik van connectieven in mondeling en schriftelijk taalgebruik. Tijdschrift voor Taalbeheersing, 3, 203-209.

    Abstract

    Van den Broeck (1977, 1980) heeft een pragmatische interpretatie voorgesteld voor de verschillende wijzen waarop leden van hogere en lagere sociaal-economische klassen hun taaluitingen syntaktisch struktureren. Ter ondersteuning hiervan presenteerde hij gegevens m.b.t. gemiddelde zinscomplexiteit bij sprekers uit twee sociaal- conomische klassen in formele en informele gesprekssituaties. Het in dit artikel gerapporteerde onderzoek slaagt er niet in van den Broeck's uitkomsten te repliceren. Waarschijnlijk berusten ze op een contaminatie van gesprekssituatie met taalkeuze (standaardtaal vs. lokaal dialekt). Mede op basis van de nieuwe gegevens wordt i.p.v. de pragmatische interpretatie een vaardigheidsinterpretatie voorgesteld. T.g.v. vooropleiding en beroep beschikken leden van verschillende sociaal- economische klassen over uiteenlopende vaardigheidsniveaus in verhalend (narrative) en verklarend (expository) taalgebruik. Dit uit zich in het gebruik van connectieven: funktiewoorden die logischsemantische relaties tussen proposities uitdrukken.
  • Kempen, G., & Kolk, H. (1980). Apentaal, een kwestie van intelligentie, niet van taalaanleg. Cahiers Biowetenschappen en Maatschappij, 6, 31-36.
  • Kempen, G., & Van Wijk, C. (1980). Leren formuleren: Hoe uit opstellen een objektieve index voor formuleervaardigheid afgeleid kan worden. De Psycholoog, 15, 609-621.
  • Van Wijk, C., & Kempen, G. (1980). Functiewoorden: Een inventarisatie voor het Nederlands. ITL: Review of Applied Linguistics, 53-68.
  • Kempen, G. (1979). La mise en paroles, aspects psychologiques de l'expression orale. Études de Linguistique Appliquée, 33, 19-28.

    Abstract

    Remarques sur les facteurs intervenant dans le processus de formulation des énoncés.
  • Kempen, G. (1979). Psychologie van de zinsbouw: Een Wundtiaanse inleiding. Nederlands Tijdschrift voor de Psychologie, 34, 533-551.

    Abstract

    The psychology of language as developed by Wilhelm Wundt in his fundamental work Die Sprache (1900) has a strongly mentalistic character. The dominating positions held by behaviorism in psychology and structuralism in linguistics have overruled Wundt’s language theory to the effect that it has remained relatively unknown. This situation has changed recently under the influence of transformational linguistics and cognitive psychology. The paper discusses how Wundt applied the basic psychological concepts of apperception and association to language behavior, in particular to the construction and production of sentences during unprepared speech. The final part of the paper is devoted to the work, published in 1917, of the Dutch linguistic scholar Jacques van Ginneken, who elaborated Wundt’s ideas towards an explanation of some syntactic phenomena during the language acquisition of children.
  • Kempen, G. (1979). Woordwaarde. De Psycholoog, 14, 577.
  • Kempen, G. (1978). Psychologie een cognitieve wetenschap. De Psycholoog, 13, 566-574.
  • Kempen, G. (1977). [Review of the book Explorations in cognition by D. Norman, D. Rumelhart and the LNR Research Group]. Journal of Psycholinguistic Research, 6(2), 184-186. doi:10.1007/BF01074377.
  • Kempen, G. (1976). Syntactic constructions as retrieval plans. British Journal of Psychology, 67(2), 149-160. doi:10.1111/j.2044-8295.1976.tb01505.x.

    Abstract

    Four probe latency experiments show that the ‘constituent boundary effect’ (transitions between constituents are more difficult than within constituents) is a retrieval and not a storage phenomenon. The experimental logic used is called paraphrastic reproduction: after verbatim memorization of some sentences, subjects were instructed to reproduce them both in their original wording and in the form of sentences that, whilst preserving the original meaning, embodied different syntactic constructions. Syntactic constructions are defined as pairs which consist of a pattern of conceptual information and a syntactic scheme, i.e. a sequence of syntactic word categories and function words. For example, the sequence noun + finite intransitive main verb (‘John runs’) expresses a conceptual actor-action relationship. It is proposed that for each overlearned and simple syntactic construction there exists a retrieval plan which does the following. It searches through the long-term memory information that has been designated as the conceptual content of the utterance(s) to be produced, looking for a token of its conceptual pattern. The retrieved information is then cast into the format of its syntactic scheme. The organization of such plans is held responsible for the constituent boundary effect.
  • Kempen, G. (1975). De taalgebruiker in de mens: Schets van zijn bouw en funktie, toepassingen op moedertaal en vreemde taal verwerving. Forum der Letteren, 16, 132-158.
  • Kempen, G. (1975). Theoretiseren en experimenteren in de cognitieve psychologie. Gedrag: Tijdschrift voor Psychologie, 6, 341-347.
  • Kempen, G. (1973). [Review of the book Psycholinguïstiek by B. Tervoort et al.]. Nederlands Tijdschrift voor de Psychologie, 28, 172-174.
  • Kempen, G. (1971). [Review of the book General Psychology by N. Dember and J.J. Jenkins]. Nijmeegs Tijdschrift voor Psychologie, 19, 132-133.
  • Kempen, G. (1971). Het onthouden van eenvoudige zinnen met zijn en hebben als werkwoorden: Een experiment met steekwoordreaktietijden. Nijmeegs Tijdschrift voor Psychologie, 19, 262-274.
  • Kempen, G. (1971). Opslag van woordbetekenissen in het semantisch geheugen. Nijmeegs Tijdschrift voor Psychologie, 19, 36-50.
  • Kempen, G. (1970). Ideaalbeelden van de Europese jeugd: Weerwoord op methodologische kritiek. Dux, 37, 54-56.
  • Kempen, G., & Boon van Ostade, A. (1969). Een typologie van ideaalbeelden van Europese jeugdigen door middel van de iteratieve clusteranalyse. Nederlands Tijdschrift voor de Psychologie, 24, 46-60.
  • Kempen, G., Hermans, B., Klinkum, A., Brand, M., & Verhaaren, F. (1969). The word-frequency effect and incongruity perception: Methodological artifacts? Perception and Psychophysics, 5(3), 161-162. doi:10.3758/BF03209549.

    Abstract

    Two experimental results often reported in support of perceptual interpretations concerning the influence of set on perception are critically examined: (a) the relation between word frequency and recognition threshold, and (b) the so-called compromise reactions between set and stimulus, Alter elimination of certain methodological artifacts (e.g., introduction of a temporal forced-choice method instead of the ascending-limits method), both phenomena disappear; the influence of set on perception appears to be wholly a matter of response bias.
  • Kempen, G. (1966). Een informatietheoretische reïnterpretatie van het probleem der autonome geheugenveranderingen. Gawein: Tijdschrift voor psychologie, 15, 9-26.
  • Kempen, G. (1966). [Review of the book Theories of learning and instruction ed. by E.R. Hilgard]. Nijmeegs Tijdschrift voor Psychologie, 14, 250.
  • Kempen, G. (1965). Leermachine en talenpracticum: Inleiding en literatuuroverzicht. Tijdschrift voor opvoedkunde, 11, 1-31.

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