Scientific article
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Choosing task characteristics oneself justifies effort: a study on cardiac response and the critical role of task difficulty

Published inMotivation science, vol. 8, no. 3, p. 230-238
Publication date2022-09
First online date2022-09
Abstract

This experiment investigated how the personal choice of task characteristics influences resource mobilization assessed as effort-related cardiac response during a task of clearly low vs. unclear (but also low) difficulty. We expected that the personal choice of the color of memory task stimuli would justify higher effort during task performance than external color assignment. Applying the logic of motivational intensity theory (MIT; Brehm et al., 1983; Brehm & Self, 1989), we further predicted that the personal choice of the stimuli’s color would directly lead to higher effort intensity than external color assignment when task difficulty was unclear but not when the task difficulty was clear. When task difficulty was low and clear, we expected actual effort to be low in general, because high resources are not necessary for a clearly easy task. Results were as expected: when task difficulty was unclear, participants who had personally chosen the stimuli’s color showed significantly stronger cardiac pre-ejection period reactivity, reflecting higher effort, than those in the other three conditions. These findings provide first evidence that personal choice justifies relatively high effort and further support the principles of MIT regarding the critical role of task difficulty for resource mobilization.

Keywords
  • Choice
  • Deliberation
  • Effort
  • Cardiovascular Response
Citation (ISO format)
BOUZIDI, Yann et al. Choosing task characteristics oneself justifies effort: a study on cardiac response and the critical role of task difficulty. In: Motivation science, 2022, vol. 8, n° 3, p. 230–238. doi: 10.1037/mot0000269
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Identifiers
Additional URL for this publicationhttp://doi.apa.org/getdoi.cfm?doi=10.1037/mot0000269
Journal ISSN2333-8113
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465downloads

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Creation04/09/2022 08:48:00
First validation04/09/2022 08:48:00
Update25/03/2026 08:41:35
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