Pim Levelt

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  • Baayen, H., Levelt, W. J. M., Schreuder, R., & Ernestus, M. (2007). Paradigmatic structure in speech production. Proceedings from the Annual Meeting of the Chicago Linguistic Society, 43(1), 1-29.

    Abstract

    The main goal of the present study is to trace the consequences of local and global markedness for the processing of singular and plural nouns. Decompositional models such as proposed by (Pinker (1997); Pinker (1999)) and (Levelt et al. (1999)) predict a lexeme frequency effect and no effects of the frequencies of the singular and the plural forms. Experiments 1 and 4 reveal the expected lexeme frequency effect. Furthermore, in these experiments there are no clear independent effects of the frequencies of the inflected forms. However, the effects of Entropy and Relative Entropy that emerge from these experiments show that in production knowledge of the probabilities of the individual inflected forms do play a role, albeit indirectly. These entropy effects bear witness to the importance of paradigmatic organization of inflected forms in the mental lexicon, both at the level of individual lexemes (Entropy) and at the general level of the class of nouns (Relative Entropy).
  • Korvorst, M., Roelofs, A., & Levelt, W. J. M. (2007). Telling time from analog and digital clocks: A multiple-route account. Experimental Psychology, 54(3), 187-191. doi:10.1027/1618-3169.54.3.187.

    Abstract

    Does the naming of clocks always require conceptual preparation? To examine this question, speakers were presented with analog and digital clocks that had to be named in Dutch using either a relative (e.g., “quarter to four”) or an absolute (e.g., “three forty-five”) clock time expression format. Naming latencies showed evidence of conceptual preparation when speakers produced relative time expressions to analog and digital clocks, but not when they used absolute time expressions. These findings indicate that conceptual mediation is not always mandatory for telling time, but instead depends on clock time expression format, supporting a multiple-route account of Dutch clock time naming.
  • Levelt, W. J. M. (2007). Levensbericht Detlev W. Ploog. In Levensberichten en herdenkingen 2007 (pp. 60-63). Amsterdam: Koninklijke Nederlandse Akademie van Wetenschappen.
  • Özdemir, R., Roelofs, A., & Levelt, W. J. M. (2007). Perceptual uniqueness point effects in monitoring internal speech. Cognition, 105(2), 457-465. doi:10.1016/j.cognition.2006.10.006.

    Abstract

    Disagreement exists about how speakers monitor their internal speech. Production-based accounts assume that self-monitoring mechanisms exist within the production system, whereas comprehension-based accounts assume that monitoring is achieved through the speech comprehension system. Comprehension-based accounts predict perception-specific effects, like the perceptual uniqueness-point effect, in the monitoring of internal speech. We ran an extensive experiment testing this prediction using internal phoneme monitoring and picture naming tasks. Our results show an effect of the perceptual uniqueness point of a word in internal phoneme monitoring in the absence of such an effect in picture naming. These results support comprehension-based accounts of the monitoring of internal speech.
  • Roelofs, A., Özdemir, R., & Levelt, W. J. M. (2007). Influences of spoken word planning on speech recognition. Journal of Experimental Psychology: Learning, Memory, and Cognition, 33(5), 900-913. doi:10.1037/0278-7393.33.5.900.

    Abstract

    In 4 chronometric experiments, influences of spoken word planning on speech recognition were examined. Participants were shown pictures while hearing a tone or a spoken word presented shortly after picture onset. When a spoken word was presented, participants indicated whether it contained a prespecified phoneme. When the tone was presented, they indicated whether the picture name contained the phoneme (Experiment 1) or they named the picture (Experiment 2). Phoneme monitoring latencies for the spoken words were shorter when the picture name contained the prespecified phoneme compared with when it did not. Priming of phoneme monitoring was also obtained when the phoneme was part of spoken nonwords (Experiment 3). However, no priming of phoneme monitoring was obtained when the pictures required no response in the experiment, regardless of monitoring latency (Experiment 4). These results provide evidence that an internal phonological pathway runs from spoken word planning to speech recognition and that active phonological encoding is a precondition for engaging the pathway. (PsycINFO Database Record (c) 2007 APA, all rights reserved)
  • Indefrey, P., & Levelt, W. J. M. (2000). The neural correlates of language production. In M. S. Gazzaniga (Ed.), The new cognitive neurosciences; 2nd ed. (pp. 845-865). Cambridge, MA: MIT Press.

    Abstract

    This chapter reviews the findings of 58 word production experiments using different tasks and neuroimaging techniques. The reported cerebral activation sites are coded in a common anatomic reference system. Based on a functional model of language production, the different word production tasks are analyzed in terms of their processing components. This approach allows a distinction between the core process of word production and preceding task-specific processes (lead-in processes) such as visual or auditory stimulus recognition. The core process of word production is subserved by a left-lateralized perisylvian/thalamic language production network. Within this network there seems to be functional specialization for the processing stages of word production. In addition, this chapter includes a discussion of the available evidence on syntactic production, self-monitoring, and the time course of word production.
  • Levelt, W. J. M. (2000). Uit talloos veel miljoenen. Natuur & Techniek, 68(11), 90.
  • Levelt, W. J. M. (2000). Dyslexie. Natuur & Techniek, 68(4), 64.
  • Levelt, W. J. M. (2000). Met twee woorden spreken [Simon Dik Lezing 2000]. Amsterdam: Vossiuspers AUP.
  • Levelt, W. J. M. (2000). Links en rechts: Waarom hebben we zo vaak problemen met die woorden? Natuur & Techniek, 68(7/8), 90.
  • Levelt, W. J. M. (2000). Introduction Section VII: Language. In M. S. Gazzaniga (Ed.), The new cognitive neurosciences; 2nd ed. (pp. 843-844). Cambridge: MIT Press.
  • Levelt, W. J. M. (2000). Psychology of language. In K. Pawlik, & M. R. Rosenzweig (Eds.), International handbook of psychology (pp. 151-167). London: SAGE publications.
  • Levelt, C. C., Schiller, N. O., & Levelt, W. J. M. (2000). The acquisition of syllable types. Language Acquisition, 8(3), 237-263. doi:10.1207/S15327817LA0803_2.

    Abstract

    In this article, we present an account of developmental data regarding the acquisition of syllable types. The data come from a longitudinal corpus of phonetically transcribed speech of 12 children acquiring Dutch as their first language. A developmental order of acquisition of syllable types was deduced by aligning the syllabified data on a Guttman scale. This order could be analyzed as following from an initial ranking and subsequent rerankings in the grammar of the structural constraints ONSET, NO-CODA, *COMPLEX-O, and *COMPLEX-C; some local conjunctions of these constraints; and a faithfulness constraint FAITH. The syllable type frequencies in the speech surrounding the language learner are also considered. An interesting correlation is found between the frequencies and the order of development of the different syllable types.
  • Levelt, W. J. M. (2000). The brain does not serve linguistic theory so easily [Commentary to target article by Grodzinksy]. Behavioral and Brain Sciences, 23(1), 40-41.
  • Levelt, W. J. M. (2000). Speech production. In A. E. Kazdin (Ed.), Encyclopedia of psychology (pp. 432-433). Oxford University Press.
  • Levelt, W. J. M., & Indefrey, P. (2000). The speaking mind/brain: Where do spoken words come from? In A. Marantz, Y. Miyashita, & W. O'Neil (Eds.), Image, language, brain: Papers from the First Mind Articulation Project Symposium (pp. 77-94). Cambridge, Mass.: MIT Press.
  • Levelt, W. J. M., & Meyer, A. S. (2000). Word for word: Multiple lexical access in speech production. European Journal of Cognitive Psychology, 12(4), 433-452. doi:10.1080/095414400750050178.

    Abstract

    It is quite normal for us to produce one or two million word tokens every year. Speaking is a dear occupation and producing words is at the core of it. Still, producing even a single word is a highly complex affair. Recently, Levelt, Roelofs, and Meyer (1999) reviewed their theory of lexical access in speech production, which dissects the word-producing mechanism as a staged application of various dedicated operations. The present paper begins by presenting a bird eye's view of this mechanism. We then square the complexity by asking how speakers control multiple access in generating simple utterances such as a table and a chair. In particular, we address two issues. The first one concerns dependency: Do temporally contiguous access procedures interact in any way, or do they run in modular fashion? The second issue concerns temporal alignment: How much temporal overlap of processing does the system tolerate in accessing multiple content words, such as table and chair? Results from picture-word interference and eye tracking experiments provide evidence for restricted cases of dependency as well as for constraints on the temporal alignment of access procedures.
  • Meyer, A. S., & Levelt, W. J. M. (2000). Merging speech perception and production [Comment on Norris, McQueen and Cutler]. Behavioral and Brain Sciences, 23(3), 339-340. doi:10.1017/S0140525X00373241.

    Abstract

    A comparison of Merge, a model of comprehension, and WEAVER, a model of production, raises five issues: (1) merging models of comprehension and production necessarily creates feedback; (2) neither model is a comprehensive account of word processing; (3) the models are incomplete in different ways; (4) the models differ in their handling of competition; (5) as opposed to WEAVER, Merge is a model of metalinguistic behavior.
  • Klein, W., & Levelt, W. J. M. (1978). Sprache und Kontext. Naturwissenschaften, 65, 328-335. doi:10.1007/BF00368373.

    Abstract

    Recently, the Max Planck Society founded a new Project group for Psycholinguistics. This article reviews some of the kernel issues of the group's research program. The central concern is with the context dependency of the speaker's linguistic behavior. The process of linguistically formulating depends not only on what the speaker wants to express, but also on what has been said previously (linguistic context), and on the physical and social situation (nonlinguistic context). Special attention is paid to two context-dependent phenomena.
  • Levelt, W. J. M., Sinclair, A., & Jarvella, R. J. (1978). Causes and functions of linguistic awareness in language acquisition: Some introductory remarks. In A. Sinclair, R. Jarvella, & W. J. M. Levelt (Eds.), The child's conception of language (pp. 1-14). Heidelberg: Springer.
  • Levelt, W. J. M. (1978). A survey of studies in sentence perception: 1970-1976. In W. J. M. Levelt, & G. Flores d'Arcais (Eds.), Studies in the perception of language (pp. 1-74). New York: Wiley.
  • Levelt, W. J. M., & Schreuder, R. (1978). Psychologische theorieën over het lexicon. Forum der Letteren, 19, 40-58.
  • Levelt, W. J. M. (1978). Skill theory and language teaching. Studies in Second Language Acquisition, 1(1), 53-70. doi:10.1017/S0272263100000711.
  • Levelt, W. J. M., Schreuder, R., & Hoenkamp, E. (1978). Structure and use of verbs of motion. In R. N. Campbell, & P. T. Smith (Eds.), Recent advances in the psychology of language: Vol 2. Formal and experimental approaches (pp. 137-162). New York: Plenum Press.
  • Levelt, W. J. M., & Flores d'Arcais, G. B. (Eds.). (1978). Studies in the perception of language. London: Wiley.
  • Noordman, L. G. M., & Levelt, W. J. M. (1978). The noun-verb intersection method for the study of word meanings. Methodology and Science, 11, 86-113.
  • Sinclair, A., Jarvella, R. J., & Levelt, W. J. M. (Eds.). (1978). The child's conception of language. Berlin: Springer.

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