Oliver Sacks | The Man Who Mistook His Wife for a Hat

“The patient’s essential being is very relevant in the higher reaches of neurology, and in psychology; for here the patient’s personhood is essentially involved, and the study of disease and of identity cannot be disjoined. Such disorders, and their depiction and study, indeed entail a new discipline, which we may call the ‘neurology of identity’, for it deals with the neural foundations of the self, the age-old problem of mind and brain. It is possible that there must, of necessity, be a gulf, a gulf of category, between the psychical and the physical; but studies and stories pertaining simultaneously and inseparably to both—and it is these which especially fascinate me, and which (on the whole) I present here—may nonetheless serve to bring them nearer, to bring us to the very intersection of mechanism and life, to the relation of physiological processes to biography.” Oliver Sacks