Perception of Speech Reflects Optimal Use of Probabilistic Speech Cues

Autor/inn/en	Clayards, Meghan; Tanenhaus, Michael K.; Aslin, Richard N.; Jacobs, Robert A.
Titel	Perception of Speech Reflects Optimal Use of Probabilistic Speech Cues
Quelle	In: Cognition, 108 (2008) 3, S.804-809 (6 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0010-0277
DOI	10.1016/j.cognition.2008.04.004
Schlagwörter	Cues; Probability; Auditory Perception; Articulation (Speech); Listening Skills; Time; Oral Language + Suchen Sie Ihr Suchwort? Stichwort; Wahrscheinlichkeitsrechnung; Wahrscheinlichkeitstheorie; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Zeit; Oral interpretation; Mündlicher Sprachgebrauch
Abstract	Listeners are exquisitely sensitive to fine-grained acoustic detail within phonetic categories for sounds and words. Here we show that this sensitivity is optimal given the probabilistic nature of speech cues. We manipulated the probability distribution of one probabilistic cue, voice onset time (VOT), which differentiates word initial labial stops in English (e.g., "beach" and "peach"). Participants categorized words from distributions of VOT with wide or narrow variances. Uncertainty about word identity was measured by four-alternative forced-choice judgments and by the probability of looks to pictures. Both measures closely reflected the posterior probability of the word given the likelihood distributions of VOT, suggesting that listeners are sensitive to these distributions. (Contains 1 table and 4 figures.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10