[The pyramidal tract is involved in the control of an autonomic response (skin potential response), in the cat (author's transl)].

On Cats paralyzed by gallamine, electrical stimulation of corticospinal fibers still evoked skin potential responses, after a transection of the medulla only sparing the pyramidal tract. These responses persisted even after aspiration of the medullary tissue posterior to the section and overlying the pyramids. These results indicate that the pyramidal tract can participate in the control of electrodermal activities, besides reticular influences that also act upon the spinal level.