Responses of macaque lateral geniculate cells to luminance and color figures.
The spatial tuning of macaque lateral geniculate neurones was compared for luminance-based and color-based lines. Lines of various widths were flashed on and centered on the cell's receptive field, and the size of the increase or decrease in firing was noted. Luminance-based lines consisted of 0.7 log unit increments or decrements. Color-based lines consisted of shifts in wavelength with no change in luminance, e.g., from a red field to a green line on a red field. The cell fired most to intermediate widths of luminance-based lines, but to the widest pure-color lines.
D000818:Animals; D003118:Color Perception / Q000502:physiology*; D005829:Geniculate Bodies / Q000166:cytology / Q000502:physiology*; D000882:Haplorhini; D008027:Light; D008252:Macaca fascicularis; D008253:Macaca mulatta; D009433:Neural Inhibition; D009474:Neurons / Q000502:physiology; D014796:Visual Perception / Q000502:physiology*