Abstract
In the past year I have been carrying on, in Dr. Wolf's laboratory at Cornell, some experiments on the optic thalamus in cats with Clarke's stereotaxic instrument. In some work on the anatomy and physiology of this region, published in Brain about a year ago, I showed that the thalamus could be anatomically divided into a median and lateral portion. The lateral was connected with the pre- and post-central gyri, or what corresponds to this area in the carnivora, while the median portion composed of the anterior and median nuclei was intimately connected with the nucleus caudatus and rhinencephalon.
In my present work the relation of the thalamus to blood pressure, respiration and changes in spleen volume was studied. Bechterev and his pupils, Christiani and Ott, have found variations in these functions, and the former has claimed that special centers exist in the thalamus for these functions.
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