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

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)

Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1962
Accession Number
AD0282541

Entities

People

  • H. Gastaut

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Education
  • Electrophysiological Phenomena
  • Training

Fields of Study

  • Medicine
  • Psychology

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Neuroscience
  • Vision Science/Vision Psychology/Cognitive Neuroscience.