Accession Number : AD0686044

Title :   NEUROPHYSIOLOGICAL CORRELATES OF ECHOLOCATION IN BATS.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS BIOLOGICAL LABS

Personal Author(s) : Grinnell,Alan D.

Report Date : 01 JUN 1962

Pagination or Media Count : 186

Abstract : Bats of the suborder Microchiroptera exhibit skills in the use of sound for orientation that are equalled in no other mammals. Some of these skills are described, with a discussion of the problems these uses of sound must pose for the auditory nervous system. After a brief comparison of the morphology of auditory structures in bats and other mammals, the main body of the thesis presents the results of electrophysiological recordings from the auditory nervous systems of two Vespertilionids, Myotis l. lucifugus and Plecotus townsendii. These recordings provide several evidences of neural specialization for the particular requirements of echolocation. (Author)

Descriptors :   (*BATS, AUDITORY PERCEPTION), NERVOUS SYSTEM, ELECTROPHYSIOLOGY, SOUND, SENSITIVITY, EAR, MORPHOLOGY(BIOLOGY), RECORDING SYSTEMS, ELECTRODES, RESPONSE(BIOLOGY), BRAIN, STIMULATION(PHYSIOLOGY), NERVE IMPULSES, INTENSITY, AUDITORY NERVE, HEARING, THRESHOLDS(PHYSIOLOGY)

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE