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Related Experiment Videos

Relationship between schizophrenic thinking and MMPI for process and reactive patients

S M Fishkin, W R Lovallo, V Pishkin

    Journal of Clinical Psychology
    |January 1, 1977
    PubMed
    Summary

    The Whitaker Index of Schizophrenic Thinking (WIST) correlated with MMPI performance in Process schizophrenic patients. This association was not found in Reactive schizophrenic patients, suggesting significant behavioral disorganization.

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    Area of Science:

    • Psychology
    • Psychopathology

    Background:

    • Schizophrenia is a complex mental disorder characterized by cognitive and behavioral disturbances.
    • Differentiating subtypes of schizophrenia, such as Process and Reactive, is crucial for understanding varying symptom presentations.

    Purpose of the Study:

    • To investigate the relationship between the Whitaker Index of Schizophrenic Thinking (WIST) and the Minnesota Multiphasic Personality Inventory (MMPI) in male schizophrenic inpatients.
    • To explore potential differences in cognitive and behavioral correlates between Process and Reactive schizophrenia subtypes.

    Main Methods:

    • Utilized the Whitaker Index of Schizophrenic Thinking (WIST) to assess thought patterns.
    • Administered the Minnesota Multiphasic Personality Inventory (MMPI) to evaluate personality traits and psychopathology.

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  • Analyzed data from 25 male inpatients diagnosed with Process or Reactive schizophrenia.

    • Main Results:

    • A significant positive correlation (r = .54, p < .05) was observed between the WIST index and the MMPI Schizophrenia (Sc) scale specifically in the Process schizophrenia group.
    • Intercorrelations among MMPI scales also correlated with the WIST index for Process patients.
    • No significant association was found between WIST and MMPI scales for Reactive patients.

    Conclusions:

    • The findings suggest that the WIST may be a useful tool for assessing cognitive disorganization in Process schizophrenia, correlating with specific MMPI profiles.
    • The absence of WIST-MMPI correlation in Reactive schizophrenia indicates a different pattern of disorganization, potentially related to disrupted behavioral pacing and irrelevant information processing.