The Japanese journal of neuropsychology

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ArticleTitle	Neural basis of delusional jealousy in patients with dementia
Language	J
AuthorList	Mamoru Hashimoto, Manabu Ikeda
Affiliation	Department of Neuropsychiatry, Faculty of Life Sciences, Kumamoto University
Publication	Japanese Journal of Neuropsychology: 29 (4), 266-277, 2013
Received
Accepted
Abstract	Delusional jealousy (DJ) is a psychotic syndrome characterized by the belief in the infidelity of one's spouse that reaches delusional intensity. We discussed clinical features and neuropsychiatric mechanisms of DJ in patients with dementia. In dementia, cognitive decline can give the patient a feeling of inferiority to spouse. In addition, physical disorder of the patient and good health of the spouse could cause the feeling of inferiority to the spouse for the patient. Low self-esteem and feeling of inferiority were considered central to many psychological theories of delusional jealousy. DJ may develop more easily in patients with DLB because of an altered dopaminergic system and of coexisting psychiatric symptoms such as visual hallucinations and misidentificational delusions.
Keywords	delusional jealousy, dementia, feeling of inferiority, dementia with Lewy bodies