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Related Experiment Videos

Linking actions and their perceivable consequences in the human brain.

Birgit Elsner1, Bernhard Hommel, Claudia Mentschel

  • 1Department of Cognition and Action, Max Planck Institute for Psychological Research, D-80799, Munich, Germany. elsner@mpipf-muenchen.mpg.de

Neuroimage
|December 17, 2002
PubMed
Summary

This study explored how the brain learns voluntary actions. Researchers found that the supplementary motor area and hippocampus are key in linking movements to their outcomes, aiding action control.

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Motor Control

Background:

  • Voluntary actions are goal-directed, requiring learning associations between movements and their consequences.
  • Understanding the neural basis of this action-effect learning is crucial for explaining voluntary behavior.

Purpose of the Study:

  • To investigate the neural substrates involved in learning the link between self-initiated movements and their perceivable consequences.
  • To identify brain regions that show increased activity correlating with the frequency of action-effect associations.

Main Methods:

  • Utilized H2(15O) positron emission tomography (PET) to measure brain activity in healthy adults.
  • Participants learned keypress-tone associations (action effects) and were later scanned while listening to varying ratios of action-effect and neutral tones without movement.

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  • Analyzed brain activity in relation to the frequency of presented action-effect tones.

    • Main Results:

    • Increased activity was observed in the caudal supplementary motor area (SMA) and the right hippocampus.
    • This increased activity correlated positively with the frequency of action-effect tones presented during the PET scan.
    • These findings suggest a role for these regions in integrating action and effect information.

    Conclusions:

    • The caudal supplementary motor area and right hippocampus are critical neural components for linking actions to their consequences.
    • This integration process is a flexible mechanism supporting the learning, automatization, and control of voluntary actions.
    • The study provides insights into the neural underpinnings of goal-directed behavior and motor learning.