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Cardiac cycle modulates reward feedback processing: An ERP study.

Kenta Kimura1

  • 1National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan.

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|September 4, 2019
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Summary
This summary is machine-generated.

The heart

Keywords:
Cardiac cycleEvent-related brain potentialFeedback-related negativityInteroceptionReward positivityReward processing

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Area of Science:

  • Neuroscience
  • Psychology
  • Cardiology

Background:

  • The brain's processing of action feedback is crucial for learning and decision-making.
  • The cardiac cycle, the rhythmic sequence of heart muscle contraction and relaxation, influences various bodily functions.
  • Previous research has not fully explored the impact of the cardiac cycle on feedback processing.

Purpose of the Study:

  • To investigate if the cardiac cycle influences the evaluative processing of action feedback.
  • To examine the effect of cardiac systole and diastole on event-related brain potentials (ERPs) related to feedback.
  • To determine if cardiac afferent signals modulate the feedback-related negativity (FRN) and reward positivity (RewP).

Main Methods:

  • Participants completed a gambling task involving monetary gains and losses.
  • Action feedback outcomes were retrospectively classified based on their presentation during cardiac systole or diastole.
  • Event-related brain potentials (ERPs), specifically the FRN and RewP, were analyzed in relation to the cardiac cycle.

Main Results:

  • The feedback-related negativity/reward positivity (FRN/RewP) was significantly larger during systole trials compared to diastole trials.
  • This modulation was primarily driven by the processing of monetary gains, not losses.
  • Cardiac afferent signals during systole enhanced the brain's response to positive feedback.

Conclusions:

  • The cardiac cycle, specifically systole, modulates the evaluative processing of action feedback.
  • These findings suggest that physiological fluctuations, such as those in the cardiac cycle, can influence cognitive processes.
  • This research highlights a novel interaction between cardiovascular activity and neural mechanisms of feedback evaluation.