Accession Number : AD0739270

Title :   Cerebral Cortex Potentials Evoked in Man by Preceived and Not Preceived Acoustic Stimuli (Vyzvannye Potentsialy kory Golovnogo Mozga Chevloveka na Osoznavaeme i Neosoznavaeme Zvukovye Stimuly),

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TEX

Personal Author(s) : Konstandov,E. A. ; Dyachkova,G. I.

Report Date : 1972

Pagination or Media Count : 14

Abstract : With the aid of the computer, average evoked potentials (AEP) to short acoustic subliminal stimuli (3-10 db below the threshold audibility), liminal intensity and supraliminal intensity (10-60 db above the threshold) were recorded from the vertex and the occipatal region of the skull (healthy subjects). The dynamics of the AEP changes have been demonstrated with an increase in sound intensity from subliminal to supraliminal (60 db) values. Time and amplitude parameters of AEP from perceived and not perceived acoustic stimuli are positively distinguishable from each other. A long-latent, low-amplitude, slow positive wave is the most constant, and in many cases the only component of AEP from a not perceived stimulus. (Author)

Descriptors :   (*CEREBRAL CORTEX, *AUDITORY PERCEPTION), STIMULATION(PHYSIOLOGY), RESPONSE(BIOLOGY), ELECTROENCEPHALOGRAPHY, AUDITORY NERVE, HEARING, CENTRAL NERVOUS SYSTEM, PHYSIOLOGY, USSR

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE