Thalamocortical projections to the temporal and parietal association cortices in the rat

Thalamic projections to the parietal cortex were studied with the Nissl technique and thalamic projections to the temporal cortex were studied with both Nissl and horseradish peroxidase techniques. Results indicated that the parietal cortex receives projections from the lateral thalamic nucleus, pars principalis while the temporal cortex receives projections from the latero-posterior nucleus. It was suggested that the temporal cortex may be homologous to the primate posterior association cortex receiving projections from the pulvinar.