A survey conducted at the Rehabilitation Institute of Montreal, covering 250 cases of cerebral palsy, came to include three pairs of identical twins, all discordant as to the disease. Pair I was female, 8 years old; Pair II, male, 6 years old; Pair III, female, 18 years old.
All vere subjected to physiatric, psyschiatric, and psychological tests as well as to tests involving activities of daily living. In each instance, the study was completed by EEG's still and motion pictures. The investigations included psychological and psychiatric evaluation of parents.
Extensive medical, psychological and psychiatric conclusions are drawn.