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Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm
09:00

Investigating Pain-Related Avoidance Behavior using a Robotic Arm-Reaching Paradigm

Published on: October 3, 2020

Experience and choice shape expected aversive outcomes.

Tali Sharot1, Tamara Shiner, Raymond J Dolan

  • 1Wellcome Trust Centre for Neuroimaging, Institute of Neurology, University College London, London, United Kingdom. t.sharot@fil.ion.ucl.ac.uk

The Journal of Neuroscience : the Official Journal of the Society for Neuroscience
|July 9, 2010
PubMed
Summary
This summary is machine-generated.

Experiencing negative events, even choosing them, can reduce their perceived negative value. This psychological shift is reflected in brain activity within the caudate nucleus and anterior cingulate cortex, showing how context influences our perception of adversity.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Value-based decision making

Background:

  • The perceived value of negative events is not fixed and can be influenced by context.
  • Understanding how the brain represents and re-evaluates negative experiences is crucial for understanding emotional regulation and resilience.

Purpose of the Study:

  • To investigate if changes in the psychological valuation of aversive events are mirrored by alterations in their neural representation.
  • To explore the role of specific brain regions, such as the caudate nucleus and anterior cingulate cortex, in mediating this revaluation process.

Main Methods:

  • The study involved participants experiencing and choosing to re-experience aversive events.
  • Neural activity was monitored using neuroimaging techniques (implied, not explicitly stated).
  • Behavioral measures of perceived aversiveness were collected alongside neural data.

Main Results:

  • Experiencing and choosing to re-experience an aversive event led to a reduction in its subjective aversive value.
  • This reduction in psychological value was associated with altered neural representations of aversive value in the caudate nucleus and anterior cingulate cortex.
  • Specific subcortical and cortical regions involved in value tracking and emotional modulation were identified as key mediators.

Conclusions:

  • The brain exhibits contextual sensitivity in assigning value to events, particularly aversive ones.
  • Subcortical (caudate nucleus) and anterior cingulate cortical regions play a role in re-evaluating expected aversive outcomes.
  • These findings suggest a neural mechanism that may contribute to psychological resilience when facing adversity.