Objective: To investigate associations between buying-shopping disorder (BSD) propensity and the performance in the Stroop Matching Task. This task measures stimulus interference, one specific component of behavioral impulsivity, using neutral (i.e. not buying related) stimuli. Deficits thus mirror a general rather than a specific deficit to resist task-irrelevant stimuli.
Method: 222 participants completed the Stroop Matching Task, the Pathological Buying Screener, and various questionnaires assessing clinical background variables as well as trait-impulsivity.
Results: Correlation analyses showed that BSD propensity was associated with poorer performance in the Stroop Matching Task. Multiple regression analyses controlling for related disorders and trait-impulsivity indicated that BSD was the only significant predictor.
Conclusion: These findings indicate that BSD propensity is associated with deficits in the stimulus interference component of behavioral impulsivity, mirroring a general cognitive deficit. Since no other disorder significantly predicted the performance in the Stroop Matching Task, this deficit seems to be unique for BSD.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7402500 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0237093 | PLOS |
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