Title

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

Authors

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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