Annual Of The Universal Medical Sciences 1889 Vol 2 PDF Download

Excerpt from Annual of the Universal Medical Sciences, 1896, Vol. 2 Indeed, he regarded it as important to rid ourselves entirely of the idea of sensory cells and motor cells; but to abandon separate sensory and motor localization would, he believed, necessitate the abandonment of visual, auditory, gustatory, and other subdivisions of the cortex. The cerebro-sensory area, - that is, the area of representation for skin- and muscle- sensations, - both cortical and subcortical, would be, from his point of view, that part of the cerebrum where the fillet radiations concerned with these sensory excitations in their most compact forms are nearest to the surface of the brain, and therefore this region might continue to be destroyed as it had been by him, as in the postero-parietal, quadrate, and fornicate convolutions. Destruction of this region, especially if bilateral, caused more or less permanent loss or impairment of sensation. Dana, of New York, still held to the view (sustained last year) that the motor and sensory functions were practically united. He had directly irritated the motor cortex and produced sensory disturbance associated with motor disturbance. The whole weight of clinical evidence, the surgical operations, the tumors, and the softenings indicated that these two functions were essentially identical anatomically. Putnam, of Boston, thought that the convolutions in advance of the fissure of Rolando, the function of which we ordinarily associated with localized movements, had also to do with sensation, and that the function of sensibility was very widely distributed. He alluded to the fact that a sensation would make its way from a minute portion of the spinal cord that was left; and in the brain, if one channel were cut off, it would make its way into other channels. Sensibility would seem to be rather peculiar in the fact that it is almost always related to something else. Starr, of New York, argued that a lesion of a limited area of the so-called motor zone inevitably produced, in almost every case, more or less disturbance of sensation. He considered that he was mistaken in 1890, when he maintained that sensations were received only behind the fissure of Rolando. He believed with Dana that there were disturbances of sensation produced by small lesions anterior to the fissure of Rolando, and that the sensory area of the body corresponded exactly with the motor area, so far as could be determined clinically. Dercum, of Philadelphia, expressed the opinion that the various centres of the cortex, as we knew them clinically and pathologically, were simply highways of ingress and egress to the general cortex. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.