Pim Levelt

Primary tabs

Publications

Displaying 1 - 11 of 11
  • Levelt, W. J. M. (2019). How Speech Evolved: Some Historical Remarks. Journal of Speech, Language, and Hearing Research, 62(8S), 2926-2931. doi:10.1044/2019_JSLHR-S-CSMC7-19-0017.

    Abstract

    The evolution of speech and language has been a returning topic in the language sciences since the so-called “cognitive revolution.”
  • Levelt, W. J. M. (2019). On empirical methodology, constraints, and hierarchy in artificial grammar learning. Topics in Cognitive Science. doi:10.1111/tops.12441.

    Abstract

    This paper considers the AGL literature from a psycholinguistic perspective. It first presents a taxonomy of the experimental familiarization test procedures used, which is followed by a consideration of shortcomings and potential improvements of the empirical methodology. It then turns to reconsidering the issue of grammar learning from the point of view of acquiring constraints, instead of the traditional AGL approach in terms of acquiring sets of rewrite rules. This is, in particular, a natural way of handling long‐distance dependences. The final section addresses an underdeveloped issue in the AGL literature, namely how to detect latent hierarchical structure in AGL response patterns.
  • Levelt, W. J. M. (1976). Formal grammars and the natural language user: A review. In A. Marzollo (Ed.), Topics in artificial intelligence (pp. 226-290). Vienna: Springer.
  • Levelt, W. J. M., Schreuder, R., & Hoenkamp, E. (1976). Struktur und Gebrauch von Bewegungsverben. Zeitschrift für Literaturwissenschaft und Linguistik, 6(23/24), 131-152.
  • Levelt, W. J. M., & Kempen, G. (1976). Taal. In J. Michon, E. Eijkman, & L. De Klerk (Eds.), Handboek der Psychonomie (pp. 492-523). Deventer: Van Loghum Slaterus.
  • Stassen, H., & Levelt, W. J. M. (1976). Systemen, automaten en grammatica's. In J. Michon, E. Eijkman, & L. De Klerk (Eds.), Handboek der psychonomie (pp. 100-127). Deventer: Van Loghum Slaterus.
  • De Weert, C., & Levelt, W. J. M. (1976). Comparison of normal and dichoptic colour mixing. Vision Research, 16, 59-70. doi:10.1016/0042-6989(76)90077-8.

    Abstract

    Dichoptic mixtures of equiluminous components of different wavelengths were matched with a binocularly presented "monocular" mixture of appropriate chosen amounts of the same colour components. Stimuli were chosen from the region of 490-630 nm. Although satisfactory colour matches could be obtained, dichoptic mixtures differed from normal mixtures to a considerable extent. Midspectral stimuli tended to be more dominant in the dichoptic mixtures than either short or long wavelength stimuli. An attempt was made to describe the relation between monocular and dichoptic mixtures with one function containing a wavelength variable and an eye dominance parameter.
  • De Weert, C., & Levelt, W. J. M. (1976). Dichoptic brightness combinations for unequally coloured lights. Vision Research, 16, 1077-1086.
  • Levelt, W. J. M. (1962). Motion breaking and the perception of causality. In A. Michotte (Ed.), Causalité, permanence et réalité phénoménales: Etudes de psychologie expérimentale (pp. 244-258). Louvain: Publications Universitaires.
  • Levelt, W. J. M., & Plomp, R. (1962). Musical consonance and critical bandwidth. In Proceedings of the 4th International Congress Acoustics (pp. 55-55).
  • Van de Geer, J. P., Levelt, W. J. M., & Plomp, R. (1962). The connotation of musical consonance. Acta Psychologica, 20, 308-319.

    Abstract

    As a preliminary to further research on musical consonance an explanatory investigation was made on the different modes of judgment of musical intervals. This was done by way of a semantic differential. Subjects rated 23 intervals against 10 scales. In a factor analysis three factors appeared: pitch, evaluation and fusion. The relation between these factors and some physical characteristics has been investigated. The scale consonant-dissonant showed to be purely evaluative (in opposition to Stumpf's theory). This evaluative connotation is not in accordance with the musicological meaning of consonance. Suggestions to account for this difference have been given.

Share this page