Accession Number : ADA119986

Title :   Interference Fringes Used to Determine Retinal Ganglion Cell Receptive Field Sizes.

Descriptive Note : Final rept. Sep 78-Mar 82,

Corporate Author : SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX

Personal Author(s) : Wormington,Charles M

PDF Url : ADA119986

Report Date : Jul 1982

Pagination or Media Count : 30

Abstract : A method is presented for determining the effective diameter of retinal ganglion cell receptive field centers. Unaffected by the optics of the eye, the method involves single-unit recording of ganglion cell activity in response to drifting interference fringe patterns of various spatial frequencies. The ganglion cell response magnitude (contrast) falls off as the spatial frequency of the fringes is increased. From the spatial frequency dependence of the observed responses, the receptive field centers of the sampled X-cells were estimated to range from 6.8 to 10 micron in diameter. Suggested improvements to the technique are discussed.

Descriptors :   *Ganglia, *Retina, Diameters, Determination, Response(Biology), Patterns, Contrast, Frequency, Stimulation(Physiology), Rhesus monkeys, Test methods, Monitoring, Recording systems

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE