Fenwick, Peter. (1980). Can we still recommend meditation. British Medical Journal, 287, 1401, November 1983. [Texte complet]
"Bordeline or frankly psychotic people should be excluded as should those with a history of psychosis who are still receiving drug treatment, as meditation may terminate a remission. Prolonged periods of meditation have occasionally been shown to lead to psychotic episodes, acute anxiety, depression, and suicide, and prolonged meditation should be undertaken only in groups where there is adequate care of knowledge of the likely effects. Those who find the process produces negative results should not be pressed to continue, since their symptoms tend to get worse with time. One final group who may run into trouble are patients with epilepsy whose seizures are intensified by the reduction in the level of alertness wich occurs during the meditation session."