Related Experiment Video
Updated: Jun 3, 2026

Use of a Psychophysiological Script-driven Imagery Experiment to Study Trauma-related Dissociation in Borderline Personality Disorder
Published on: March 8, 2018
Identifying schizophrenia and other psychoses with psychological scales in the general population
Jouko Miettunen1, Juha Veijola, Matti Isohanni
1Department of Psychiatry, Oulu University and Oulu University Hospital, Oulu, Finland. jouko.miettunen@oulu.fi
Abstract:
We study the predictive power and associations of several psychopathology and temperament scales with respect to schizophrenia and other psychotic disorders. Measures of psychopathology (Physical and Social Anhedonia Scales, Perceptual Aberration Scale, Hypomanic Personality Scale, Bipolar II Scale, and Schizoidia Scale) and the Temperament and Character Inventory were included in the 31-year follow-up of the prospective Northern Finland 1966 birth cohort (N = 4926). The Perceptual Aberration Scale was the best scale for concurrent validity in psychoses, and also the best psychopathology scale in terms of discriminant validity. Participants scoring high in hypomanic personality were at the highest risk for developing psychosis during the 11-year follow-up. Harm avoidance was a dominant temperament dimension in individuals with psychosis compared with participants without psychiatric diagnoses. These scales are useful as vulnerability markers in studying psychoses.
Related Concept Videos
Self-Report Tests of Personality
Psychological and Sociocultural Causes of Schizophrenia
Schizophrenia
Diagnostic and Statistical Manual of Mental Disorders (DSM)
Positive Symptoms Schizophrenia: Hallucinations and Delusions
Hallucinations
Hallucinations in...
Theoretical Approaches to Psychological Disorder
Biological approach
The biological approach posits that internal, organic factors are the primary causes of such disorders. This perspective emphasizes brain structure and function, genetic predispositions, and neurotransmitter imbalances. For example, schizophrenia has been associated with both genetic...