Early levels of analysis of speech

Author(s): Kat, D.

Journal/Book: J Exp Psychol-Hum Percep Perf. 1996; 22: 750 First St NE, Washington, DC 20002-4242. Amer Psychological Assoc. 676-694.

Abstract: A fundamental goal of an information-processing approach to speech perception is to specify the levels of analysis between the initial sensory coding of the signal and the recognition of the phonetic sequence that it conveys. A series of experiments provides evidence fur at least 3 qualitatively different levels of analysis involved in the perception of speech. Several properties for the representations of each level are described, including a locus (peripheral or monaurally driven vs. central or binaurally driven), a stimulus domain, and the mechanisms involved in response adjustment as a function of repeated stimulation. The stimulus domains for the 3 levels are (a) processes that deal with simple acoustic patterns, (b) processes that integrate more complex acoustic patterns, and (c) processes that represent categorical or phonetic information, The convergence among several different approaches used to determine levels of analysis supports the 3-level model.

Note: Article AG Samuel, SUNY Stony Brook, Dept Psychol, Stony Brook, NY 11794 USA

Keyword(s): SELECTIVE ADAPTATION; FEATURE-DETECTORS; PERCEPTION; CONSONANTS; CONTRAST; NONSPEECH

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