Response variability of X- and Y-cells in the dorsal lateral geniculate nucleus of the cat.
Publication/Presentation Date
2-1-1988
Abstract
1. We measured the variability of neural responses in the dorsal lateral geniculate nucleus (dLGN) of the anesthetized, paralyzed cat during repeated visual stimulation with sinusoidal grating patterns. Results are reported for 11 X-cells and 16 Y-cells recorded in laminae A and A1. 2. The responses of most X- and Y-cells varied markedly from trial to trial. The standard deviations of prestimulus, base-line discharge rate. In contrast, the standard deviations of poststimulus responses increased only slightly or not at all with increases in mean discharge rate. 3. Standard deviations of poststimulus responses to optimal stimuli were about one-third the size of mean discharge rates. Relative variability (standard deviation/mean) increased markedly and in nonlinear fashion with decreases in response amplitude, which resulted in considerable overlap of base-line and poststimulus response distributions when stimuli were less than optimal.
Volume
59
Issue
2
First Page
317
Last Page
325
ISSN
0022-3077
Published In/Presented At
Sestokas, A. K., & Lehmkuhle, S. (1988). Response variability of X- and Y-cells in the dorsal lateral geniculate nucleus of the cat. Journal of neurophysiology, 59(2), 317–325. https://doi.org/10.1152/jn.1988.59.2.317
Disciplines
Medicine and Health Sciences
PubMedID
3351565
Department(s)
Department of Medicine
Document Type
Article