Cortico-cortical connections to the fifth somatosensory area (SV) in the cat´s cerebral cortex: a horseradish peroxidase study

It is known that there are at least four separate somatosensory cortical representations in the cat´s cortex. These areas had many cortico-cortical connections in the cerebral cortex. Furthermore, Mori et al. found a new and complete somatosensory representation of the body surface located rostro-caudally along the medial bank of the anterior suprasylvian sulcus (ASSS-m), the fifth somatosensory cortex (SV). These neurons had large receptive fields (RFs). In the present study, we used the HRP technique to identify the cortico-cortical neurons which project to the facial or trunk-hindlimb regions of SV.