Figure 1.

Locations of tracer injection sites in the superior colliculus (SC) and extrastriate visual areas V4 and TEO. Injection sites in monkeys N and R are shown on the dorsal view of SC reconstructed from the series of (A) coronal or (C) sagittal sections. In both monkeys, injections in SC (orange) cover the central part of SC. Injections in visual cortex (injection zone – black, diffusion zone – dark gray) are shown on the surface view of flattened cortex (B,E) and on the series of sagittal sections (D). Borders of areas V1, V2, MT, and MST/STP (blue dashed lines) were determined from adjacent sections stained for cytochrome oxidase and myelinated fibers. In flattened cortex opened sulci are shaded light gray and outlined in green. Abbreviations used are as follows:ArcS – arcuate sulcus, CS – central sulcus, CalS – calcarine sulcus, IOS – inferior occipital sulcus, IPS – intraparietal sulcus, LuS – lunate sulcus, MST – middle superior temporal visual area, MT – middle temporal area, OTS – occipito-temporal sulcus, PMTS – posterior medial temporal sulcus, PrCS – precentral sulcus, PS – principal sulcus, PsCs – postcentral sulcus, STS – superior temporal sulcus, Visual areas: MST – middle superior temporal visual area, MT – middle temporal area, STP – superior temporal polysensory area, TEO – caudal inferotemporal area, V1 – primary visual area, V2 – second visual area, V4 – fourth visual area.