دورية أكاديمية
Auditory-Phonetic Projection and Lexical Structure in the Recognition of Sine-Wave Words
| العنوان: | Auditory-Phonetic Projection and Lexical Structure in the Recognition of Sine-Wave Words |
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| اللغة: | English |
| المؤلفون: | Remez, Robert E., Dubowski, Kathryn R., Broder, Robin S., Davids, Morgana L., Grossman, Yael S., Moskalenko, Marina, Pardo, Jennifer S., Hasbun, Sara Maria |
| المصدر: | Journal of Experimental Psychology: Human Perception and Performance. Jun 2011 37(3):968-977. |
| الإتاحة: | American Psychological Association. Journals Department, 750 First Street NE, Washington, DC 20002-4242. Tel: 800-374-2721; Tel: 202-336-5510; Fax: 202-336-5502; e-mail: order@apa.org; Web site: http://www.apa.org/publications |
| Peer Reviewed: | Y |
| Page Count: | 10 |
| تاريخ النشر: | 2011 |
| نوع الوثيقة: | Journal Articles Reports - Research |
| Education Level: | Higher Education Postsecondary Education |
| Descriptors: | Word Recognition, Auditory Perception, Phonetics, Speech, Sentences, Attention, Undergraduate Students, Mutual Intelligibility |
| مصطلحات جغرافية: | New York |
| DOI: | 10.1037/a0020734 |
| تدمد: | 0096-1523 |
| مستخلص: | Speech remains intelligible despite the elimination of canonical acoustic correlates of phonemes from the spectrum. A portion of this perceptual flexibility can be attributed to modulation sensitivity in the auditory-to-phonetic projection, although signal-independent properties of lexical neighborhoods also affect intelligibility in utterances composed of words. Three tests were conducted to estimate the effects of exposure to natural and sine-wave samples of speech in this kind of perceptual versatility. First, sine-wave versions of the easy and hard word sets were created, modeled on the speech samples of a single talker. The performance difference in recognition of easy and hard words was used to index the perceptual reliance on signal-independent properties of lexical contrasts. Second, several kinds of exposure produced familiarity with an aspect of sine-wave speech: (a) sine-wave sentences modeled on the same talker; (b) sine-wave sentences modeled on a different talker, to create familiarity with a sine-wave carrier; and (c) natural sentences spoken by the same talker, to create familiarity with the idiolect expressed in the sine-wave words. Recognition performance with both easy and hard sine-wave words improved after exposure only to sine-wave sentences modeled on the same talker. Third, a control test showed that signal-independent uncertainty is a plausible cause of differences in recognition of easy and hard sine-wave words. The conditions of beneficial exposure reveal the specificity of attention underlying versatility in speech perception. (Contains 3 figures.) |
| Abstractor: | As Provided |
| Number of References: | 53 |
| Entry Date: | 2011 |
| رقم الأكسشن: | EJ934413 |
| قاعدة البيانات: | ERIC |
| تدمد: | 0096-1523 |
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| DOI: | 10.1037/a0020734 |