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Reward value enhances post-decision error-related activity in the cingulate cortex.

Jessica E Taylor1, Akitoshi Ogawa2, Masamichi Sakagami1

  • 1Brain Science Institute, Tamagawa University, 6-1-1 Tamagawagakuen, Machida, Tokyo 194-8610, Japan; Graduate School of Brain Sciences, Tamagawa University, 6-1-1 Tamagawagakuen, Machida, Tokyo 194-8610, Japan.

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Summary
This summary is machine-generated.

Making mistakes is crucial for learning and adapting. This study reveals that reward value enhances error processing in the brain after decisions, but not before, impacting theories of error correction and confidence.

Keywords:
Anterior cingulate cortexDecision-makingError processingFunctional magnetic resonance imagingMedial frontal cortexPerformance monitoring

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Decision-Making

Background:

  • Error processing is vital for behavioral adaptation.
  • The influence of reward value on error processing remains unclear.
  • Previous research has not distinguished between accuracy and reward value effects.

Purpose of the Study:

  • To investigate the distinct effects of reward value on error processing at different stages of decision-making.
  • To explore neural correlates of reward-modulated error detection.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used.
  • Participants performed a random dot motion discrimination task.
  • Reward and non-reward stimuli were associated via classical conditioning.

Main Results:

  • Pre-response medial frontal cortex activity was not modulated by reward value.
  • Midcingulate cortex showed enhanced error-related activity in reward trials at response time.
  • Anterior cingulate cortex exhibited error-related activity in non-reward trials at outcome time.

Conclusions:

  • Reward value enhances post-decision error-related neural activity, not pre-decision activity.
  • Findings have implications for understanding error correction and confidence.
  • Differentiates the impact of reward on cognitive processes underlying error evaluation.