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<p>This article highlights the psychological process that determines the intensity of effort—the mobilization of resource for action execution—in performing cognitive tasks. I outline the logic of a theory-based psychophysiological approach. Arguing for a physiological measure of the intensity of exerted effort based on the definition of the effort construct, I present exemplary studies showing how specific responses in the cardiovascular system can reflect the mobilization of resources for action execution. Grounded in the principles of motivational intensity theory (Brehm &amp; Self, <CitationRef CitationID="CR15">1989</CitationRef>), that evidence shows that effort rises with subjective task difficulty as long as success is possible and the necessary effort is justified. Importantly, this means that people are fine with exerting high effort if that is justified and necessary. Rather than avoiding effort itself, people try to avoid the waste of effort. Differences with and implications for other approaches are discussed.</p>

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The intensity of mental effort: “the heart does not lie”

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月4日

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  • Guido H. E. Gendolla

摘要

This article highlights the psychological process that determines the intensity of effort—the mobilization of resource for action execution—in performing cognitive tasks. I outline the logic of a theory-based psychophysiological approach. Arguing for a physiological measure of the intensity of exerted effort based on the definition of the effort construct, I present exemplary studies showing how specific responses in the cardiovascular system can reflect the mobilization of resources for action execution. Grounded in the principles of motivational intensity theory (Brehm & Self, 1989), that evidence shows that effort rises with subjective task difficulty as long as success is possible and the necessary effort is justified. Importantly, this means that people are fine with exerting high effort if that is justified and necessary. Rather than avoiding effort itself, people try to avoid the waste of effort. Differences with and implications for other approaches are discussed.