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Frontopolar Cortex Response to Positive Feedback Relates to Nonincentivized Task Persistence.

Sarah M Tashjian1, Adriana Galván1,2

  • 1Department of Psychology, University of California at Los Angeles, Los Angeles, CA 90095, USA.

Cerebral Cortex (New York, N.Y. : 1991)
|September 28, 2021
PubMed
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Brain activity in the frontopolar cortex (FPC) influences task persistence. Positive feedback on pending tasks boosts FPC engagement, promoting continued effort and aiding goal-directed behavior.

Keywords:
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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Decision-Making Research

Background:

  • Task persistence is modulated by feedback, influencing goal-directed behavior.
  • Previous research on persistence incentives is confounded by external rewards.
  • Understanding neural mechanisms of non-incentivized persistence is crucial.

Purpose of the Study:

  • To investigate neural responses to feedback during non-incentivized task persistence.
  • To examine the role of the frontopolar cortex (FPC) in decision-making for task continuation.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to measure brain activity.
  • Ninety-nine participants (ages 13-30) performed tasks with varying feedback conditions.
  • Neural responses were analyzed based on persistence versus quitting behavior.

Main Results:

  • Individuals persisting in tasks showed greater frontopolar cortex (FPC) engagement with positive feedback.
  • Participants who quit showed higher FPC activation to monetary rewards compared to positive feedback.
  • FPC activation to positive feedback is linked to sustained task engagement.

Conclusions:

  • The frontopolar cortex (FPC) plays a critical role in modulating task persistence.
  • Positive feedback on ongoing tasks, processed by the FPC, supports continued effort.
  • Findings differentiate neural responses to task-relevant versus irrelevant feedback during persistence decisions.