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Related Experiment Videos

The angular gyrus computes action awareness representations.

Chlöé Farrer1, Scott H Frey, John D Van Horn

  • 1Centre de Neuroscience Cognitive, Université Claude Bernard Lyon 1, CNRS, 69675 Lyon, France. farrer@isc.cnrs.fr

Cerebral Cortex (New York, N.Y. : 1991)
|May 11, 2007
PubMed
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The right angular gyrus (Ag) is crucial for action awareness, processing both the consistency of actions with intentions and the sense of agency. This brain region helps us consciously interpret our own movements.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Motor Control

Background:

  • Action awareness involves conscious experiences of one's own actions.
  • Key aspects include awareness of action-consequence consistency and sense of agency.
  • The right inferior parietal cortex, particularly the angular gyrus (Ag), is implicated in these processes.

Purpose of the Study:

  • To investigate the involvement of the right inferior parietal area in action awareness.
  • To differentiate the neural correlates of action-consequence consistency awareness and sense of agency.
  • To test the hypothesis that the right angular gyrus (Ag) is associated with both forms of action awareness.

Main Methods:

  • Two functional magnetic resonance imaging (fMRI) studies were conducted.

Related Experiment Videos

  • A novel delayed visual feedback technique was employed.
  • This method distinguished neural correlates of different action awareness components.

    • Main Results:

    • The right angular gyrus (Ag) showed involvement in both awareness of discrepancy between intended and actual movement consequences.
    • The right Ag was also associated with the awareness of action authorship (sense of agency).

    Conclusions:

    • The right angular gyrus (Ag) plays a significant role in higher-order motor control.
    • This region facilitates conscious access to various aspects of one's actions.
    • It processes discrepancies between intended and actual movement consequences for conscious detection, underpinning action interpretation.