Projections from the rostral pole of the inferior colliculus to the cat superior colliculus

The neuroanatomical data given here reveal a dense projection from the rost ral pole of the cat inferior colliculus (rpIC) to the superior colliculus ( SC). A portion of this pathway distributes in 'patches' across the ventral portion of the intermediate grey layer. These finding suggest that the rpIC input to the SC might play a role in determining the auditory receptive fi elds of SGI neurons and in the construction of the SC's precise two dimensi onal map of auditory space. (C) 2000 Elsevier Science B.V. All rights reser ved.