Introduction
The relation between brain and mind still awaits clarification despite its long history of evolving concepts and the many distinguished studies concerned with it, notably those beginning in the 18th and extending through the 19th and 20th centuries. Since those who have most to do with the brain as a structure are but rarely the same persons who have the most sustained interest in, and the best insights concerning, man's highest qualities, a dilemma ensues. Physicians concerned with the survival of patients and better methods of localizing lesions and defining disease understandably relegate to second place those evidences of impaired brain function not leading to the furtherance of their professional purposes. Yet these very manifestations are central to the problem of human brain function. They thus remain largely unstudied by both physicians and scholars.The age-old questions concerning the brain-mind relationship therefore have been approached afresh, using as the