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Rumination and inhibition in task switching: No evidence for an association

Grange

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Abstract

Rumination is typically defined as the perseverative focus of attention on negative internal thoughts and feelings, which can increase the risk of developing— and severity once developed—of depression. It is thought the perseveration is caused by a deficit in inhibitory control in ruminators. Congruent with this hypothesis, estimates of inhibition in task switching—the n–2 task repetition cost—are negatively associated with estimates of rumination. However, estimates of individual differences of n–2 task repetition costs are hampered by (a) measurement error caused by trial-wise variation in performance, and (b) recent evidence suggesting much of the n–2 task repetition cost measures interference in episodic memory, not inhibition. The aim of the current study was to revisit the question of the association between the n–2 task repetition cost and measures of rumination by (a) statistically accounting for measurement error by estimating n–2 task repetition costs via trial-level Bayesian multilevel modelling, and (b) controlling for episodic interference effects on estimates of n–2 task repetition cost by utilising a paradigm capable of doing so. The results provided no evidence for an association between rumination and n–2 task repetition costs, regardless of episodic interference.

Citation

Grange. (2023). Rumination and inhibition in task switching: No evidence for an association. Cognition and Emotion, https://doi.org/10.1080/02699931.2023.2176289

Acceptance Date Jan 29, 2023
Publication Date Feb 13, 2023
Journal Cognition and Emotion
Print ISSN 0269-9931
Publisher Routledge
DOI https://doi.org/10.1080/02699931.2023.2176289
Keywords Rumination; inhibition; task switching; episodic retrieval
Publisher URL https://www.tandfonline.com/doi/full/10.1080/02699931.2023.2176289

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