TY - JOUR AB - The superficial layers of the superior colliculus (SC) have been known to contain many axons showing substance P-like immunoreactivity (SP-LI). We, therefore, immunohistochemically examined the distribution of SP receptor (SPR) in the superficial layers of the SC in the rat by using a specific antibody against SPR. The majority of SC neurons with SPR-LI were distributed in the zonal and the superficial gray layers, the rest of them were in the optic layer. Electron microscopy revealed that SPR-immunoreaction products in SC neurons were distributed not only in postsynaptic sites, but also in non-synaptic regions of perikaryal and dendritic profiles. AU - Ogawa Meguro, Reiko AU - Shigemoto, Ryuichi AU - Itoh, Kazuo AU - Konishi, Akira AU - Mizuno, Noboru ID - 2552 IS - 2 JF - Neuroscience Letters SN - 0304-3940 TI - Immunohistochemical localization of substance P receptor in the superior colliculus. A light and electron microscope study in the rat VL - 166 ER -