Schizotypal Personality Questionnaire (SPQ)
The Schizotypal Personality Questionnaire (SPQ) (Raine 1991) is a commonly used self-report measure of schizotypy in healthy community samples. In recent years, the risk for schizophrenia spectrum disorders predisposed by schizotypy has received increasing attention in the literature. What is schizotypy? Is it a continuum or a categorical construct? How is it measured by the SPQ? Why is it important to measure schizotypy? This entry addresses these questions and reviews the major correlates of schizotypy assessed by the SPQ.
The SPQ Three-Factor Structure
The Schizotypal Personality Questionnaire (SPQ) is a 74-item self-report questionnaire originally designed for screening schizotypal personality disorder in the general community and also researching the correlates of schizotypy (Raine 1991). Modeled after DSM-III-R schizotypal personality disorder diagnostic criteria, the SPQmeasures three well-replicated factors of schizotypy: cognitive-perceptual deficits, interpersonal deficits,...
KeywordsProspective Memory Gray Matter Volume Negative Priming Schizophrenia Spectrum Disorder Paranoid Ideation
- American Psychiatric Association. (1994). Diagnostic and statistical manual of mental disorders (4th ed.). Washington, DC: Author.Google Scholar
- Cardno, A. G., Marshall, E. J., Coid, B., Macdonald, A. M., Ribchester, T. R., Davies, N. J., …, & Gottesman, I. I. (1999). Heritability estimates for psychotic disorders: The Maudsley twin psychosis series. Archives of General Psychiatry, 56(2), 162–168.Google Scholar
- Fanous, A. H., Neale, M. C., Gardner, C. O., Webb, B. T., Straub, R. E., O’Neill, F. A., …, & Kendler, K. S. (2007). Significant correlation in linkage signals from genome-wide scans of schizophrenia and schizotypy. Molecular Psychiatry, 12(10), 958–965.Google Scholar
- Koychev, I., Joyce, D., Barkus, E., Ettinger, U., Schmechtig, A., Dourish, C. T., …, & Deakin, J. F. W. (2016). Cognitive and oculomotor performance in subjects with low and high schizotypy: Implications for translational drug development studies. Translational Psychiatry, 6(5), e811.Google Scholar
- Koychev, I., McMullen, K., Lees, J., Dadhiwala, R., Grayson, L., Perry, C., …, & Dourish, C. T. (2012). A validation of cognitive biomarkers for the early identification of cognitive enhancing agents in schizotypy: A three-center double-blind placebo-controlled study. European Neuropsychopharmacology, 22(7), 469–481.Google Scholar
- Lagioia, A., Van De Ville, D., Debbané, M., Lazeyras, F., & Eliez, S. (2010). Adolescent resting state networks and their associations with schizotypal trait expression. Frontiers of Systems Neuroscience, 4(35), 66–77.Google Scholar
- Nenadic, I., Lorenz, C., Langbein, K., Dietzek, M., Smesny, S., Schönfeld, N., …, & Gaser, C. (2015). Brain structural correlates of schizotypy and psychosis proneness in a non-clinical healthy volunteer sample. Schizophrenia Research, 168(1–2), 37–43.Google Scholar
- Schmechtig, A., Lees, J., Grayson, L., Craig, K. J., Dadhiwala, R., Dawson, G. R., …, & Migo, E. M. (2013). Effects of risperidone, amisulpride and nicotine on eye movement control and their modulation by schizotypy. Psychopharmacology, 227(2), 331–345.Google Scholar
- Wang, Y., Yang, T., Su, L., Yan, C., Wang, Y., Huang, J., …, & Chan, R. C. K. (2014). Neural correlates of prospective memory in individuals with schizotypal personality features. Neuropsychology, 28(3), 373–381.Google Scholar
- Woodward, N. D., Cowan, R. L., Park, S., Ansari, M. S., Baldwin, R. M., Li, R., …, & Zald, D. H. (2011). Correlation of individual differences in schizotypal personality traits with amphetamine-induced dopamine release in striatal and extrastriatal brain regions. American Journal of Psychiatry, 168, 418–426.Google Scholar