colliculus

n. (pl. colliculi) a small elevation. Two pairs of colliculi are found on the dorsal surface of the midbrain. The rostral pair, the superior colliculi, receive and process visual information and help control eye movements; they are also thought to have a role in blindsight. The caudal pair, the inferior colliculi, receive and process auditory information. [from Latin, “small hill”]

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Psychology term of the day

May 9th 2024

on-center ganglion cell

a retinal ganglion cell that is excited by light in the center of its receptive field but is inhibited by light in the surround. See also on response. Compare off-center ganglion cell.