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Gepubliceerd in: Psychological Research 5/2014

01-09-2014 | Original Article

Worrying and rumination are both associated with reduced cognitive control

Auteurs: Mieke Beckwé, Natacha Deroost, Ernst H. W. Koster, Evi De Lissnyder, Rudi De Raedt

Gepubliceerd in: Psychological Research | Uitgave 5/2014

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Abstract

Persistent negative thought is a hallmark feature of both major depressive disorder and generalized anxiety disorder. Despite its clinical significance, little is known about the underlying mechanisms of persistent negative thought. Recent studies suggest that reduced cognitive control might be an explanatory factor. We investigated the association between persistent negative thought and switching between internal representations in working memory, using the internal shift task (IST). The IST was administered to a group of undergraduates, classified as high-ruminators versus low-ruminators, or high-worriers versus low-worriers. Results showed that high-ruminators and high-worriers have more difficulties to switch between internal representations in working memory as opposed to low-ruminators and low-worriers. Importantly, results were only significant when the negative stimuli used in the IST reflected personally relevant worry themes for the participants. The results of this study indicate that rumination and worrying are both associated with reduced cognitive control for verbal information that is personally relevant.
Voetnoten
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We determined normality of the data using a Kolmogorov–Smirnov Test, kurtosis, and skewness measures. Results indicated that rumination and anxiety scores were normally distributed in the high- and low-worry groups. Depression scores were also normally distributed in the high- and low-rumination groups. However, worry-scores were not normally distributed in the high- and low-rumination groups. Therefore, we entered Depression as a covariate and Worry as an extra dichotomous (divided based on a median-split) between subjects factor in the analyses.
 
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Metagegevens
Titel
Worrying and rumination are both associated with reduced cognitive control
Auteurs
Mieke Beckwé
Natacha Deroost
Ernst H. W. Koster
Evi De Lissnyder
Rudi De Raedt
Publicatiedatum
01-09-2014
Uitgeverij
Springer Berlin Heidelberg
Gepubliceerd in
Psychological Research / Uitgave 5/2014
Print ISSN: 0340-0727
Elektronisch ISSN: 1430-2772
DOI
https://doi.org/10.1007/s00426-013-0517-5

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