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1 results

  • 18 - Schizotypal personality: synthesis and future directions

  • from Part VIII - Conclusion
  • Edited by Adrian Raine, University of Southern California, Todd Lencz, University of Southern California, Sarnoff A. Mednick, University of Southern California
  • Book:
    Schizotypal Personality
    Published online:
    04 August 2010
    Print publication:
    29 September 1995, pp 429-460

  • Summary

    This chapter attempts a broad survey of current scientific inquiry into schizotypal personality and provides directions for future research. The consensual definition of schizotypy can be found in the DSM-III-R, and is relatively unchanged in the DSM-IV. The DSM defines schizotypy as an Axis II personality disorder, which means that the symptoms must be present by early adulthood and must be enduring and persistent across situations and circumstances. The studies using DSM based assessments of schizotypal personality disorder (SPD) have the advantage of sampling a wide range of symptoms thought to be related to factors of cognitive aberrations, interpersonal deficits, and disorganized behavior. The only direct empirical method developed specifically to test the taxonicity of schizotypy is statistical modeling, using Meehl's MAXCOV-HITMAX procedure. The first major biological approach to the definition of schizotypy comes from genetics studies.