Dr. Wilder Penfield had a passionate desire to unlock the mysteries of the human brain. He revolutionized the techniques of brain surgery and made major discoveries about human cognition, memory and sensation. Penfield's medical exploration began with the causes and treatment of epilepsy, which was considered incurable. In 1935 he set up the Montréal Neurological Institute, which brought together surgeons and scientists for co-operative projects in the research, diagnosis and surgical treatment of brain disorders.