title: Correlates of psychosis proneness in relatives of schizophrenic patients.
abstract: The Magical Ideation Scale (MIS), Perceptual Aberration Scale (PABS), Social Anhedonia Scale (SAS), and Physical Anhedonia Scale (PAS) were administered to 98 relatives of schizophrenic patients along with a measure of personality disorders (the Personality Diagnostic Questionnaire--Revised). Hierarchical regression analysis indicated that the schizotypal and borderline personality disorder (PD) scales explained significant variance in both the MIS and PABS; the avoidant PD scale also explained significant variance in the PABS. The schizoid, paranoid, and avoidant PD scales explained significant variance in the SAS. Sibling intraclass correlations indicated a significant heritability of 0.62 for the PABS.
authors.affiliation: Department of Psychology, Boston University, Massachusetts 02401, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Lyons
authors.forename: R
authors.initials: R
authors.lastname: Toomey
authors.forename: S V
authors.initials: SV
authors.lastname: Faraone
authors.forename: W S
authors.initials: WS
authors.lastname: Kremen
authors.forename: A S
authors.initials: AS
authors.lastname: Yeung
authors.forename: M T
authors.initials: MT
authors.lastname: Tsuang
mesh_terms: D000328:Adult; D005190:Family / Q000523:psychology*; D005192:Family Health; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D010552:Personality Assessment; D011618:Psychotic Disorders / Q000523:psychology*; D012559:Schizophrenia / Q000235:genetics*; D012565:Schizophrenic Psychology