Size, scatter and coverage of ganglion cell receptive field centres in the cat retina.

Publisher Website
Google Scholar
Abstract
Receptive field center sizes of brisk-sustained (X) and brisk-transient (Y) ganglion cells of the cat retina were assessed by 3 different methods: small spot mapping, area threshold method and spatial resolution. Center sizes of brisk-sustained (X) cells increased from 20'' in the central area to about 70'' at an eccentricity of 4.5 mm, center sizes of brisk-transient (Y) cells from 50'' in the central area to about 140'' at 5 mm eccentricity. The scatter of center sizes at 1 retinal location was measured by recording as many ganglion cells as possible in 1 cat in a small field of retina. The center sizes of the individual classes were homogeneous and exhibited only a small amount of scatter. The coverage of the retina by the different ganglion cell classes was assessed from their density and their receptive field center area. At every retinal location the receptive field centers of 7-20 brisk-sustained (X) cells and of 3-6 brisk-transient (Y) cells overlapped. Sluggish concentric and non-concentric cells together had a coverage factor of about 60.

This publication has 42 references indexed in Scilit: