Please use this identifier to cite or link to this item: doi:10.22028/D291-32421
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Title: Strong Effort Manipulations Reduce Response Caution: A Preregistered Reinvention of the Ego-Depletion Paradigm
Author(s): Lin, Hause
Saunders, Blair
Friese, Malte
Evans, Nathan J.
Inzlicht, Michael
Language: English
Title: Psychological science : a journal of the American Psychological Society
Volume: 31
Issue: 5
Startpage: 531
Endpage: 547
Publisher/Platform: Sage
Year of Publication: 2020
Publikation type: Journal Article
Abstract: People feel tired or depleted after exerting mental effort. But even preregistered studies often fail to find effects of exerting effort on behavioral performance in the laboratory or elucidate the underlying psychology. We tested a new paradigm in four preregistered within-subjects studies (N = 686). An initial high-demand task reliably elicited very strong effort phenomenology compared with a low-demand task. Afterward, participants completed a Stroop task. We used drift-diffusion modeling to obtain the boundary (response caution) and drift-rate (information-processing speed) parameters. Bayesian analyses indicated that the high-demand manipulation reduced boundary but not drift rate. Increased effort sensations further predicted reduced boundary. However, our demand manipulation did not affect subsequent inhibition, as assessed with traditional Stroop behavioral measures and additional diffusion-model analyses for conflict tasks. Thus, effort exertion reduced response caution rather than inhibitory control, suggesting that after exerting effort, people disengage and become uninterested in exerting further effort.
DOI of the first publication: 10.1177/0956797620904990
URL of the first publication: https://journals.sagepub.com/doi/full/10.1177/0956797620904990
Link to this record: hdl:20.500.11880/29794
http://dx.doi.org/10.22028/D291-32421
ISSN: 0956-7976
1467-9280
Date of registration: 1-Oct-2020
Faculty: HW - Fakultät für Empirische Humanwissenschaften und Wirtschaftswissenschaft
Department: HW - Psychologie
Professorship: HW - Prof. Dr. Malte Friese
Collections:UniBib – Die Universitätsbibliographie

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