Trigeminal neurotomy and blood pressure responses from stimulation of lateral cerebral cortex of Macaca mulatta.

FOR SEVENTY-FIVE years blood pressure responses obtained from stimulation of various arel!.s of the cerebral cortex have been the subject of considerable attention. The earlier work was thoroughly reviewed by Bucy in 1935 (2). Analysis of these autonomic effects of stimulation of the lateral surface was extended by Kennard (6), Hoff et at. (4), and Pinkston and Rioch (10). More recently attention has been focused on those changes resulting from stimulation of the anterior cingulate, orbital, insular and anterior temporal regions (1, 3, 5, 7, 11, 12, 13). The present study is an attempt to ascertain the entire extent of lateral neocortex from which these responses are obtainable by using the stimulating techniques now available, and to begin to investigate whether or not a common mechanism links these various areas.