A preliminary investigation on the relationship between color-word Stroop task performance and delusion-proneness in nonpsychiatric adults

    Authors

    D. M. Orem;J. S. Bedwell

    Comments

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    Abbreviated Journal Title

    Psychiatry Res.

    Keywords

    Delusions; PDI-21; Response inhibition; Conflict response monitoring; ANTERIOR CINGULATE CORTEX; CEREBRAL-BLOOD-FLOW; MAJOR DEPRESSIVE; DISORDER; PERSECUTORY DELUSIONS; ALZHEIMERS-DISEASE; PSYCHOTIC SYMPTOMS; SCHIZOPHRENIA; IDEATION; INDIVIDUALS; CONCLUSIONS; Psychiatry

    Abstract

    The current study examined whether there is a relationship between the dimension of delusion-proneness and performance on the color-word Stroop task. As dysfunction in the anterior cingulate cortex (ACC) has been related to both Stroop task performance and the presence of delusions in various psychiatric populations, we hypothesized that impaired Stroop performance would relate to increased delusion-proneness in a nonpsychiatric sample. A total of 36 college students, representing a wide range of scores on a measure of delusion-proneness (Peters et al. Delusions Inventory-PDI-21), completed a computerized version of the classic color-word Stroop task. Results revealed a statistically significant positive correlation between the PDI-21 score and the Stroop effect. The pattern of results suggests that reduced efficiency of Stroop performance is related to increasing levels of delusion-proneness. This study appears to be the first to report this relationship across a continuum of delusion-proneness in a nonpsychiatric sample. This finding contributes to the cognitive neurobiological understanding of delusions and adds further support for the dimensional construct of propensity for delusions. (C) 2008 Elsevier Ireland Ltd. All rights reserved.

    Journal Title

    Psychiatry Research

    Volume

    175

    Issue/Number

    1-2

    Publication Date

    1-1-2010

    Document Type

    Article

    Language

    English

    First Page

    27

    Last Page

    32

    WOS Identifier

    WOS:000274374800005

    ISSN

    0165-1781

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