Knowledge of the number of areas involved in mammalian vision has increased greatly, and there is a far greater understanding of the importance of reciprocal connections, intrinsic connections, structure-specific modules and modules which span different structures, as well as the introduction of parallel processing models within the thalamocortical and corticocortical streams. The body of knowledge has become so vast, and is growing so rapidly, that periodic updates are essential even for experts in the field. This volume is based on a satellite meeting of an international group of researchers. It emphasizes current information regarding midbrain and extrastriate mechanisms underlying vision and visually-guided behaviour. The book also places these data into the larger context of how interrelated components of the visual system function to produce coherent visual experiences and behaviour. New research findings are presented that are unavailable elsewhere, as well as reviews and broad perspectives in which existing data from multiple sources are brought together in order to help understand the structure and function of extrageniculostriate visual areas.