Influence of vocalic context on the perception of [integral]-[s] distinction: I. Temporal factors.
| Number | 313 |
|---|---|
| Year | 1980 |
| Drawer | 6 |
| Entry Date | 06/10/1999 |
| Authors | Mann, V. A., & Repp, B. H. |
| Contact | |
| Publication | Perception & Psychophysics, 28, 213-228. |
| url | http://www.haskins.yale.edu/Reprints/HL0313.pdf |
| Abstract | When synthetic fricative noises from a [integral]-[s] continuum are followed by [a] or [u] (with appropriate formant transitions), listeners perceive more instances of [s] in the context of [u] than in the context of [a]. Experiment I (12 adults) showed that varying the duration of the fricative noise left the perceptual context effect unchanged; insertion of a silent interval following the noise reduced the effect. Experiment II (12 Subjects) suggested that it is temporal separation rather than the perception of an intervening stop consonant that is responsible for this reduction, in agreement with recent, analogous observations on anticipatory coarticulation. Experiment III (Subjects from Experiment I) showed that the vowel context effect disappears when the periodic stimulus portion is synthesized so as to contain no formant transitions. To dissociate the contribution of formant transitions from contextual effects due to vowel quality per se, Experiment IV (9 Subjects) employed synthetic fricative noises followed by periodic portions excerpted from naturally produced [integrala], [sa], [integralu], and [su]. Results show strong and largely independent effects of formant transitions and vowel quality on fricative perception. There was also a strong speaker (male vs female) normalization effect. |
| Notes |
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