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"Reverse" Stroop effect in the performance of schizophrenics.

R R Abramczyk, D E Jordan, M Hegel

    Perceptual and Motor Skills
    |February 1, 1983
    PubMed
    Summary
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    Schizophrenic patients showed significantly more "Reverse" interference on the Stroop Color-Word Interference Test compared to controls, suggesting impaired selective attention. This finding has implications for understanding cognitive deficits in schizophrenia.

    Area of Science:

    • Cognitive Psychology
    • Clinical Psychology
    • Neuroscience

    Background:

    • Schizophrenia is associated with cognitive deficits, including impaired attention.
    • The Stroop Color-Word Interference Test is a standard tool for assessing selective attention and cognitive control.
    • Previous research suggests alterations in interference processing in psychiatric populations.

    Purpose of the Study:

    • To investigate "Reverse" interference in schizophrenic patients using the Stroop Color-Word Interference Test.
    • To compare the performance of schizophrenic patients with a non-schizophrenic control group on interference tasks.
    • To explore the relationship between "Reverse" interference and selective attention in schizophrenia.

    Main Methods:

    • A group of 30 schizophrenic patients and 35 non-schizophrenic controls completed the Stroop Color-Word Interference Test.

    Related Experiment Videos

  • Performance was measured on both classical "Stroop" interference and "Reverse" interference tasks.
  • Interference effects were quantified as performance decrements on incongruent trials.

    • Main Results:

    • Schizophrenic patients exhibited significantly greater "Reverse" interference (19%) compared to controls (9%).
    • Group differences were larger on interference tasks than non-interference tasks, though interactions were not significant.
    • No significant correlations were found between "Stroop" and "Reverse" interference measures.

    Conclusions:

    • Findings support the hypothesis of impaired selective attention in schizophrenic patients, as evidenced by increased "Reverse" interference.
    • The unexpected "Reverse" effect in controls warrants further investigation.
    • The study highlights the potential psychodiagnostic utility of "Reverse" interference in schizophrenia assessment.