Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic of circuitry mediating suppression to positive contrast in the SbC RGC. SbC RGCs receive GABAergic inhibition from CRH-1 amacrine cells and glycinergic inhibition from AII amacrine cells. Both of these inhibitory circuits contribute to spike suppression to positive contrasts, and both are necessary. Note that unknown circuit components (e.g. the identity of bipolar cell inputs and amacrine cell inputs for negative contrast suppression) are not shown (see Discussion).
