Identification of afferent connections to cortical area 6abeta of the cat by means of retrograde horseradish peroxidase transport.
Ten cats were injected in cortical area 6abeta with HRP. The distribution of the cortico-cortical and thalamo-cortical afferent neurones were analysed. In the ipsilateral cortex, labelled cells were found in the following gyri: sigmoid, coronal, anterior ectosylvian, anterior suprasylvian, and orbital. In the contralateral cortex, HRP-positive neurones were found only in zones homotopic to the injection site. In the thalamus, the most heavily labelled nuclei were ventralis lateralis and ventralis medialis, while ventralis anterior, medialis dorsalis, and the intralaminar nuclei were labelled to a lesser extent. No labelled cells were found in contralateral thalamic nuclei.
Vedovato
M
M
Institute of Human Physiology, University of Ferrara, Ferrara Italy.