Accession Number : ADA137030

Title :   N1 and P1 Components of the Visual Evoked Response in Humans. A Topographical and Functional Comparison.

Descriptive Note : Final rept. 1 Jan-1 May 83,

Corporate Author : TECHNOLOGY INC SAN ANTONIO TX LIFE SCIENCES DIV

Personal Author(s) : Previc,F H ; Schafer,D L ; Spencer,C A ; Chambers,J A

PDF Url : ADA137030

Report Date : Nov 1983

Pagination or Media Count : 15

Abstract : The N1 and P1 components of the visual evoked response (VER) in humans were compared along several dimensions. To elicit the VER, square-wave gratings were presented in pattern-appearance/disappearance and phase-reversal stimulation modes. The gratings varied in terms of contrast, spatial and temporal frequency, and the region of the visual field in which they were presented. The results of these experiments indicated that the N1 and P1 components of the human VER possess similar functional and topographical characteristics, and may reflect a common neural origin.

Descriptors :   *Vision, Patterns, Response(Biology), Humans, Comparison, Stimulation(Physiology), Contrast, Topography

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE