Cotard's syndrome
Delusion that one is dead or non-existent / From Wikipedia, the free encyclopedia
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Cotard's syndrome, also known as Cotard's delusion or walking corpse syndrome, is a rare mental disorder in which the affected person holds the delusional belief that they are dead, do not exist, are putrefying, or have lost their blood or internal organs.[1] Statistical analysis of a hundred-patient cohort indicated that denial of self-existence is present in 45% of the cases of Cotard's syndrome; the other 55% of the patients presented with delusions of immortality.[2]
Cotard's syndrome | |
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Other names | Cotard's delusion, Walking corpse syndrome |
French neurologist and psychiatrist Jules Cotard (1840–1889) described "The Delirium of Negation" (Cotard's Syndrome) as a mental illness of varying severity. | |
Specialty | Psychiatry |
Symptoms | Delusion that one does not exist, is dead, missing organs, limbs, blood, and/or is incapable of dying |
Complications | Suicide, self-harm |
Diagnostic method | Psychiatric evaluation |
In 1880, the neurologist and psychiatrist Jules Cotard described the condition as le délire des négations ("the delirium of negation"), a psychiatric syndrome of varied severity. A mild case is characterized by despair and self-loathing, while a severe case is characterized by intense delusions of negation, and chronic psychiatric depression.[3][4]
The case of "Mademoiselle X" describes a woman who denied the existence of parts of her body (somatoparaphrenia) and of her need to eat. She claimed that she was condemned to eternal damnation, and therefore could not die a natural death. In the course of experiencing "the delirium of negation", Mademoiselle X died of starvation.[5][self-published source?]
Cotard's syndrome is not mentioned in either the Diagnostic and Statistical Manual of Mental Disorders (DSM)[6] or the 10th edition of the International Statistical Classification of Diseases and Related Health Problems (ICD-10) of the World Health Organization.[7]