Distribution and organization of visual and auditory neurons in the monkey prefrontal cortex.

The neurons with visual properties were found to be distributed widely in the dorsolateral area of the monkey prefrontal cortex. The visual neurons located in the lateral part of the cortical area represented the central region of the contralateral visual field, while the neurons in the medial part the periphery of the visual field. The medial cortical part also contained auditory neurons which responded maximally to a sound whose angle of incidence was lateral or posterolateral to the animal's head (peripheral region of the environmental space). The observations indicate that the prefrontal visual and auditory neurons of one hemisphere function together to obtain an information of the contralateral space around the animal.