Retino-pretectal projections in monocularly deprived cats

Experiments using double-label anterograde tracers in normally reared and monocularly deprived cats reveal that the overall pattern of retino-pretectal projections appears similar for the deprived and non-deprived eyes of monocularly deprived cats, and no different from that observed in normally reared cats, in terms of both overall extent and amount of binocular overlap. These findings indicate that this pathway is unaffected by prolonged periods of monocular deprivation, suggesting that the presence of binocular overlap per se is not a sufficient condition for binocular competition to occur.