Accession Number : AD0282541

Title :   CHRONOGRAPHIC AND TOPOGRAPHIC STUDY OF CEREBRAL POTENTIALS EVOKED BY PHOTIC STIMULATION IN MAN AND IN CAT

Corporate Author : AIX-MARSEILLE UNIV (FRANCE)

Personal Author(s) : GASTAUT,H.

Report Date : 30 APR 1962

Pagination or Media Count : 1

Abstract : Evoked potentials to light were studied in several areas of the brain in 5 cats during habituation, conditioning and after overtraining. The visually-evoked potential in different areas of the brain may change to a variety of situations: (1) in early habituation, it may fluctuate; later, it is reduced in amplitude. WithATROPINE, THESE CHANGES ARE NOT OBSERVED; (2) in early conditioning, it is enhanced in all areas of the brain, but this enhancement disappears with continued training; (3) the late part of the evoked potential curve showed the earliest and most salient difference; and (4) changes under the condition described were most obvious at cortex, centre median and in the mesencephalic reticular area. (Author)

Descriptors :   *BRAIN, *LIGHT, CEREBRAL CORTEX, ELECTRIC POTENTIAL, ELECTROENCEPHALOGRAPHY, HISTOLOGY, PHYSIOLOGY, STIMULATION(PHYSIOLOGY), VISION

Distribution Statement : APPROVED FOR PUBLIC RELEASE