The tendency of adjacent neural elements of the visual system to inhibit each other; it underlies brightness contrast and the accentuation of contours. See also brightness contrast.
Inhibition mediated by lateral interneurons, in which sensory stimuli at a particular location on the sensory surface inhibits activity in sensory pathways originating from adjacent regions of the sensory surface.
The basic means by which edges are detected in the retina. Adjacent excitatory and inhibitory regions signal differences in illumination between them.