title: Personality deviations within the schizophrenia spectrum.
abstract: The aim of this paper is to find out what kind of nonpsychotic personality features may have the same origin as schizophrenia and thus constitute a nonpsychotic alternative to schizophrenia. Family, twin and adoption studies are reviewed. The conclusion is that only schizotypal personality disorder seems to be etiologically related to schizophrenia. Among the schizotypal criteria, only eccentricity, affect constriction and excessive social anxiety are unequivically a nonpsychotic, etiologically linked alternative to schizophrenia.
authors.affiliation: Department of Psychology, University of Oslo, Norway.
authors.forename: S
authors.initials: S
authors.lastname: Torgersen
mesh_terms: D006801:Humans; D010554:Personality Disorders / Q000209:etiology*; D011569:Psychiatric Status Rating Scales; D012559:Schizophrenia / Q000150:complications* / Q000175:diagnosis