title: A delusional disorder that occurred in one of a pair of monozygotic twins.
abstract: The authors reported a pair of male monozygotic twins in one of whom a delusional disorder occurred, and discussed the etiology of that disorder. The analysis of the twins indicates the following: 1. The disposition for the delusional disorder might be related to a psychological tendency to experience a delusion that might be based on a genetic factor. This might be strengthened by the development of a hypersensitive personality (Kretschmer, E.) promoted by environmental factors. 2. A hypersensitive personality might be a significant risk factor for the delusional disorder.
authors.affiliation: Department of Psychiatry, Niigata Municipal Hospital, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Fujita
authors.forename: S
authors.initials: S
authors.lastname: Ihda
mesh_terms: D000328:Adult; D003702:Delusions / Q000235:genetics* / Q000523:psychology; D004200:Diseases in Twins / Q000235:genetics* / Q000523:psychology; D006801:Humans; D007398:Interpersonal Relations; D007439:Introversion, Psychological; D008297:Male; D010553:Personality Development; D012307:Risk Factors; D012931:Social Environment; D014430:Twins, Monozygotic / Q000523:psychology