Exorcism - Scientific View

Scientific View

Demonic possession is not a valid psychiatric or medical diagnosis recognized by either the DSM-IV or the ICD-10. Those who profess a belief in demonic possession have sometimes ascribed the symptoms associated with mental illnesses, such as hysteria, mania, psychosis, Tourette's syndrome, epilepsy, schizophrenia or dissociative identity disorder, to possession. In cases of dissociative identity disorder in which the alter personality is questioned as to its identity, 29% are reported to identify themselves as demons. Additionally, there is a form of monomania called demonomania or demonopathy in which the patient believes that he or she is possessed by one or more demons.

The illusion that exorcism works on people experiencing symptoms of possession is attributed by some to placebo effect and the power of suggestion. Some supposedly possessed persons are actually narcissists or are suffering from low self-esteem and act like a "demon possessed person" in order to gain attention.

Psychiatrist M. Scott Peck researched exorcisms and claimed to have conducted two himself. He concluded that the Christian concept of possession was a genuine phenomenon. He derived diagnostic criteria somewhat different from those used by the Roman Catholic Church. He also claimed to see differences in exorcism procedures and progression. After his experiences, and in an effort to get his research validated, he attempted but failed to get the psychiatric community to add the definition of "Evil" to the DSM-IV.

Although Peck's earlier work was met with widespread popular acceptance, his work on the topics of evil and possession generated significant debate and derision. Much was made of his association with (and admiration for) the controversial Malachi Martin, a Roman Catholic priest and a former Jesuit, despite the fact that Peck consistently called Martin a liar and manipulator. Other criticisms leveled against Peck included claims that he had transgressed the boundaries of professional ethics by attempting to persuade his patients to accept Christianity.