Pulvinar-latero posterior afferents to cortical area 7 in monkeys demonstrated by horseradish peroxidase tracing technique.

Pulvinar-latero posterior afferents to the parietal cortical area 7 of the monkey have been demonstrated by means of horseradish peroxidase (HRP) tracing technique. Following HRP injection of area 7, labelled neurons have been found in the pulvinar medialis and the nucleus lateralis posterior. The role of these pulvinar projection fibers is discussed with reference to the "visual neurons" of area 7 recently recorded from.