Accession Number : ADA117428

Title :   Oscillations in the Visual Response to Pulsed Stimuli,


Personal Author(s) : Holly,Franklin F

PDF Url : ADA117428

Report Date : Jun 1982

Pagination or Media Count : 63

Abstract : Dunlap (1915) reported a phenomenon in which a single photic pulse, presented in the periphery under mesopic conditions, is perceived as two sequential flashes. The present work indicates that this double-flash effect is but a special case of a class of auto-oscillatory phenomena occurring at a frequency in the neighborhood of 10 Hz. Flicker studies by several investigators (e.g., de Lange, 1958) have indicated a resonance (temporal MTF peak) at approximately 10 Hz. It is believed that the frequency of the oscillatory phenomena described here results from the natural frequency of the network responsible for this peak. It is also believed that these phenomena are related to the oscillatory potentials which have been recorded from retina and cortex. The impetus for this work was provided by the need to explicate certain oscillatory phenomena which had been noted in the course of evaluating proposed lighting systems on new Army helicopters. (Author)

Descriptors :   *Vision, *Oscillation, Stimuli, Pulses, Flashes, Response(Biology), Matching, Equations

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE