" AND WHERE is the place of understanding"? Fifteen years ago, in a discussion of the "Cerebral Cortex and Consciousness,"1 I began with this quotation from the Book of Job. It states the problem that concerns us in this symposium. Where, as Stanley Cobb has phrased it, is the "locus of the mind"?
My own contribution to this symposium will consist in recent observations on memory mechanisms. But I shall add an interpretation based upon the theorem expressed 15 years ago that the integrating circuits, without which there can be no conscious processes of the mind, are to be found deep within the cerebral hemispheres.
The following observations have gradually accumulated during years of operative treatment of patients who suffer from focal epilepsy. In all cases the patient was fully conscious, under local anesthesia during the exploration of his cerebral cortex.
Recollections which are clearly derived from a