The Fiber Connections of the Temporal Lobe with Emphasis on the Rhesus Monkey

The temporal lobe has three functionally distinct areas which have minimal interconnections within the lobe, but extensive connections with other parts of the brain. The superior temporal gyrus contains primary and association auditory areas. Inferotemporal cortex is exclusively a visual association area. The temporal pole is involved in social behavior. In addition, the superior temporal sulcus functions as a sensory integration area. From a review of the literature, a schema is proposed for organizing the reciprocal connections of the three functional areas into a series of loops which follow both cortical and subcortical routes. The afferent and efferent connections of the temporal lobe, phylogenesis, and deficits from lesions are discussed.