. . . . . . "1976-04-05" . . . . "1891-01-26" . . . "neural stimulation" . . . . . . . . "Wilder Graves Penfield" . . "functional maps" . . . "Penfield" . . . . . . . . . . "Wilder Penfield" . . . . . . . . . . . . . . . . . . "Wilder Penfield" . . . . . . . . . . "1976" . . . . . "of Penfield" . . . . . . . . . . . . . . . . . . . . . . . . "1891" . . . . . . . . . "Wilder Penfield's" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Dr. Wilder Penfield" . "Wilder Graves Penfield" . . "Professor Wilder Graves Penfield" . "Dr. Wilder Graves Penfield" .