Accession Number : ADA182699

Title :   Levels of Analysis of Complex Auditory Stimuli.

Descriptive Note : Final rept. 1 Sep 84-31 Aug 86,

Corporate Author : YALE UNIV NEW HAVEN CT DEPT OF PSYCHOLOGY

Personal Author(s) : Samuel,Arthur G

PDF Url : ADA182699

Report Date : 16 Jan 1987

Pagination or Media Count : 50

Abstract : The two-year project (AFOSR 84-0324) called for work in several areas of complex auditory pattern perception. Our first annual report summarized research in two of these areas. This report summarizes our efforts in four other areas. The most detailed section of this report covers work on the perception of normal and whispered speech. Using the selective adaptation paradigm, this study examined the representation of stops and continuants. The results supported the existence of a simple acoustic, peripheral level of representation, and a complex acoustic, central level of representation. Three other lines of research are briefly summarized in this report. First, several experiments tested the putative role of the syllable in the disruption of perception under conditions of signal ear-alternation. The second brief report covers work on timbre perception. A trumpet - cello continuum of tokens was synthesized, and used in various speech perception paradigms. The final brief summary reports work on the perceptual restoration of musical notes. Those experiments were designed to explore possible commonalities in the use of expectations in the perception of complex auditory patterns. The data suggest that music perception does make use of expectations, and that aspects of such perception are analagous to the use of lexical and sentential information in speech.

Descriptors :   *AUDITORY PERCEPTION, *AUDITORY SIGNALS, *SPEECH ANALYSIS, HEARING, STIMULI, SPEECH, SOUND PRESSURE, MODELS, PERCEPTION, MUSIC, SYLLABLES, SPEECH RECOGNITION, SPEECH REPRESENTATION

Subject Categories : Anatomy and Physiology
      Psychology
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE