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Incentive value, unclear task difficulty, and cardiovascular reactivity in active coping.

Michael Richter1, Guido H E Gendolla

  • 1University of Geneva, Switzerland. michael.richter@pse.unige.ch

International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology
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PubMed
Summary

Higher incentives increase cardiovascular responses like blood pressure and heart rate during challenging tasks. This study supports motivational intensity theory, showing a clear link between reward value and physiological arousal in active coping scenarios.

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Area of Science:

  • Psychophysiology
  • Behavioral Neuroscience

Background:

  • Motivational intensity theory predicts heightened physiological responses with increased incentive value.
  • Previous research on cardiovascular reactivity to incentives under unclear task difficulty yielded inconclusive results.

Purpose of the Study:

  • To investigate the moderating effect of incentive value on cardiovascular responses.
  • To test predictions of motivational intensity theory regarding cardiovascular reactivity.
  • To extend previous research on incentive effects under unclear task difficulty.

Main Methods:

  • 44 participants were randomly assigned to one of four incentive conditions (0, 10, 20, or 30 Swiss Francs).
  • Participants performed a memory task with unknown difficulty.
  • Cardiovascular responses (systolic blood pressure and heart rate) were measured.

Main Results:

  • Systolic blood pressure and heart rate reactivity monotonically increased with higher incentive values.
  • Findings supported the motivational intensity theory's predictions.

Conclusions:

  • Incentive value significantly moderates cardiovascular responses during active coping with unclear task difficulty.
  • The study provides empirical support for motivational intensity theory.
  • Results clarify the relationship between incentive value and cardiovascular reactivity in this context.