Accession Number : ADA192095

Title :   Motor Theory of Auditory Perception.

Descriptive Note : Annual technical rept. 1 Sep 86-31 Aug 87,

Corporate Author : ROCKEFELLER UNIV NEW YORK

Personal Author(s) : Williams, Heather

PDF Url : ADA192095

Report Date : 24 Sep 1987

Pagination or Media Count : 39

Abstract : The behavioral and neural substrate for motor processing of vocalizations exists in an animal model (the zebra finch). What had been considered a simple vocalization, learned from one model and carrying one message, proves to consist of compound sound units (syllables) arranged in a complex structure. The syllables in each vocalization are learned from several different sources or improvised, and are assembled to form a new vocalization. The vocal motor neurons have an auditory function (the muscles of the vocal organ contract slightly when the animal is presented with an auditory stimulus), the vocal motor neurons are spatially ordered according to their target muscle (and hence their vocal function), and vocal motor neurons in different pools have different auditory responses. Behavioral experiments to test whether the vocal motor system is involved in perception have been initiated. A new method for visual analysis of sounds is being tested. Keywords: Auditory processing, Syrinx, Song, Auditory perception, Hearing.

Descriptors :   *AUDITORY PERCEPTION, *MOTOR NEURONS, *ANIMAL COMMUNICATION, AUDITORY SIGNALS, BEHAVIOR, FUNCTIONS, HEARING, MESSAGE PROCESSING, MODELS, MUSCLES, NERVOUS SYSTEM, OPTICAL IMAGES, PERCEPTION, RESPONSE, SIGNAL PROCESSING, SOUND, STIMULI, SUBSTRATES, THEORY, SOUND TRANSMISSION, SYLLABLES, HARMONICS, BIRDS

Subject Categories : Biology

Distribution Statement : APPROVED FOR PUBLIC RELEASE