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Emanuel A, Haklay I, Har-Nir I, Halperin I, Liberman N. The impact of task (un)certainty on repeated grip force production. Psychol Sport Exerc 2024; 73:102618. [PMID: 38490595 DOI: 10.1016/j.psychsport.2024.102618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 11/08/2023] [Accepted: 03/05/2024] [Indexed: 03/17/2024]
Abstract
Many studies found that in physical tasks, reducing certainty regarding their endpoints hinders performance. However, the impact of reducing certainty regarding other aspects of physical tasks is unknown. Here we manipulated the certainty of the required effort on an unrelated, parallel task (i.e., off-task uncertainty) and examined how it impacts force production in two within-subject experiments (N = 79). In two sessions, subjects completed 20 repetitions composed of maximal forces using a gripper with their dominant hand. Between repetitions, participants applied either submaximal constant or varied grip forces, with their non-dominant arm, matched for total forces across repetitions. While we observed trivial differences in total forces between conditions, under the varied condition, participants produced a steeper decrease in forces, suggesting that off-task uncertainty impacted their effort allocation strategy. We speculate that this pattern can be attributed to cognitive overload and/or changes in motivation stemming from the imposed uncertainty.
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Affiliation(s)
- Aviv Emanuel
- School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel; Department of Health Promotion, School of Public Health, Faculty of Medical & Health Sciences, Tel-Aviv University, Tel-Aviv, Israel; Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel.
| | - Idan Haklay
- School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel
| | - Itai Har-Nir
- Department of Health Promotion, School of Public Health, Faculty of Medical & Health Sciences, Tel-Aviv University, Tel-Aviv, Israel; Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel
| | - Israel Halperin
- Department of Health Promotion, School of Public Health, Faculty of Medical & Health Sciences, Tel-Aviv University, Tel-Aviv, Israel; Sylvan Adams Sports Institute, Tel Aviv University, Tel-Aviv, Israel
| | - Nira Liberman
- School of Psychological Sciences, Tel-Aviv University, Tel-Aviv, Israel; International Faculty, Key Profile Area II: Behavioral Economic Engineering and Social Cognition, University of Cologne, Germany
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Karsh N, Haklay I, Raijman N, Lampel A, Custers R. Control alters risk-taking: The motivating impact of action-effectiveness in different risk contexts. Motivation Science 2021. [DOI: 10.1037/mot0000244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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