Retinal Lateral Inhibition Provides the Biological Basis of Long-Range Spatial Induction.

ABSTRACT: Retinal lateral inhibition is one of the conventional efficient coding mechanisms in the visual system that is produced by interneurons that pool signals over a neighborhood of presynaptic feedforward cells and send inhibitory signals back to them. Thus, the receptive-field (RF) of a retinal ganglion cell has a center-surround receptive-field (RF) profile that is classically represented as a difference-of-Gaussian (DOG) adequate for efficient spatial contrast coding. The DOG RF profile has been attributed to produce the psychophysical phenomena of brightness induction, in which the perceived brightness of an object is affected by that of its vicinity, either shifting away from it (brightness contrast) or becoming more similar to it (brightness assimilation) depending on the size of the sur

SUBMITTER: Yeonan-Kim J 

PROVIDER: S-EPMC5193432 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature