What does it mean to be in a state of trance?
What is happening in the mind and brain of an entranced medium? Are there, for example, any signs of brain dysfunction? A neuropsychiatrist, Dr Peter Fenwick, discusses the subject with practising medium and healer, Ursula Roberts, a general practitioner who can also Ste into trance and tephen Galliano of the Institute of Psychiatry, who has been conducting experiments with a group of people who display psychic ability.