Displaying 1 - 9 of 9
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Friederici, A. D., & Levelt, W. J. M. (1986). Cognitive processes of spatial coordinate assignment: On weighting perceptual cues. Naturwissenschaften, 73, 455-458.
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Levelt, W. J. M. (1986). Herdenking van Joseph Maria Franciscus Jaspars (16 maart 1934 - 31 juli 1985). In Jaarboek 1986 Koninklijke Nederlandse Akademie van Wetenschappen (pp. 187-189). Amsterdam: North Holland.
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Levelt, W. J. M. (1986). Zur sprachlichen Abbildung des Raumes: Deiktische und intrinsische Perspektive. In H. Bosshardt (
Ed. ), Perspektiven auf Sprache. Interdisziplinäre Beiträge zum Gedenken an Hans Hörmann (pp. 187-211). Berlin: De Gruyter. -
Levelt, W. J. M. (1973). Formele grammatica's in linguistiek en taalpsychologie (Vols. I-III). Deventer: Van Loghem Slaterus.
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Levelt, W. J. M. (1973). Recente ontwikkelingen in de taalpsychologie. Forum der Letteren, 14(4), 235-254.
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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. (1965). Binocular brightness averaging and contour information. British Journal of Psychology, 56, 1-13.
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Levelt, W. J. M. (1965). On binocular rivalry. PhD Thesis, Van Gorcum, Assen.
Abstract
PHD thesis, defended at the University of Leiden -
Plomp, R., & Levelt, W. J. M. (1965). Tonal consonance and critical bandwidth. Journal of the Acoustical Society of America, 38, 548-560. doi:10.1121/1.1909741.
Abstract
Firstly, theories are reviewed on the explanation of tonal consonance as the singular nature of tone intervals with frequency ratios corresponding with small integer numbers. An evaluation of these explanations in the light of some experimental studies supports the hypothesis, as promoted by von Helmholtz, that the difference between consonant and dissonant intervals is related to beats of adjacent partials. This relation was studied more fully by experiments in which subjects had to judge simple-tone intervals as a function of test frequency and interval width. The results may be considered as a modification of von Helmholtz's conception and indicate that, as a function of frequency, the transition range between consonant and dissonant intervals is related to critical bandwidth. Simple-tone intervals are evaluated as consonant for frequency differences exceeding this bandwidth. whereas the most dissonant intervals correspond with frequency differences of about a quarter of this bandwidth. On the base of these results, some properties of consonant intervals consisting of complex tones are explained. To answer the question whether critical bandwidth also plays a rôle in music, the chords of two compositions (parts of a trio sonata of J. S. Bach and of a string quartet of A. Dvorák) were analyzed by computing interval distributions as a function of frequency and number of harmonics taken into account. The results strongly suggest that, indeed, critical bandwidth plays an important rôle in music: for a number of harmonics representative for musical instruments, the "density" of simultaneous partials alters as a function of frequency in the same way as critical bandwidth does.
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