Journal Article

Childhood Behavior Precursors of Schizotypal Personality Disorder

Su-chin Serene Olin, Adrian Raine, Tyrone D. Cannon, Josef Parnas, Fini Schulsinger and Sarnoff A. Mednick

in Schizophrenia Bulletin

Published on behalf of Maryland Psychiatric Research Center

Volume 23, issue 1, pages 93-103
Published in print January 1997 | ISSN: 0586-7614
Published online January 1997 | e-ISSN: 1745-1701 | DOI:
Childhood Behavior Precursors of Schizotypal Personality Disorder

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No study has yet reported specifically on the early behavior of individuals later diagnosed with schizotypal personality disorder (SPD). This study examines prospectively collected teacher reports on school behavior as a means of assessing childhood precursors of SPD. Thirty-six DSM-III-R diagnosed schizotypal subjects were compared with four other groups: 31 schizophrenia patients, 37 diagnosed as nonpsychotic mentally ill, 68 who were not mentally ill but had mothers with schizophrenia, and 60 who were not mentally ill and had normal parents. These individuals were compared on a teachers' school report questionnaire obtained when the subjects averaged 15.1 years old. Those who later developed SPD were found to be more passive and unengaged and more hypersensitive to criticisms compared with the nonschizophrenia groups. Similar results were found when males and females were examined separately, except that males who developed SPD were found to be less disruptive and hyperexcitable compared with males with schizophrenia; females with SPD did not differ from females with schizophrenia. A receiver operating characteristic analysis found these factors to predict 73.5 percent of future SPDs; the ability of these factors to predict future SPDs is comparable for males and females. These findings suggest that preschizotypal traits may be identified in late childhood or adolescence.

Journal Article.  0 words. 

Subjects: Child and Adolescent Psychiatry

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