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 rostral 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 fields of SGI neurons and in the construction of the SC's precise two dimensional map of auditory space.