Intrahemispheric cortico-cortical afferent connections of the prefrontal cortex in the cat.

Ipsilateral cortical projections to the prefrontal cortex of the cat were investigated by means of the retrograde axonal transport of horseradish peroxidase technique. Labeled neurons were identified in frontal, insular, parietal and temporal regions, as well as in cingular, retrosplenial and perirhinal areas. These intrahemispheric cortical connections can be compared to those described in the rhesus monkey.