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Related Experiment Video

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Virtual Hand with Ambiguous Movement between the Self and Other Origin: Sense of Ownership and 'Other-Produced' Agency
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Virtual Hand with Ambiguous Movement between the Self and Other Origin: Sense of Ownership and 'Other-Produced' Agency

Published on: October 28, 2020

The neural processes underlying self-agency.

Fatta B Nahab1, Prantik Kundu, Cecile Gallea

  • 1Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL 33136, USA. fnahab@med.miami.edu

Cerebral Cortex (New York, N.Y. : 1991)
|April 10, 2010
PubMed
Summary
This summary is machine-generated.

This study reveals the brain networks behind self-agency (SA), the feeling of controlling one's actions. Using fMRI, researchers found distinct leading and lagging networks involved in detecting and processing action-outcomes to create SA.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Psychology

Background:

  • Self-agency (SA) perception, the sense of controlling one's actions, is fundamental to human experience.
  • The underlying neural mechanisms of self-agency remain incompletely understood.
  • Investigating SA is crucial for understanding agency disorders and cognitive functions.

Purpose of the Study:

  • To elucidate the neural networks supporting self-agency perception.
  • To investigate the real-time modulation of SA using a novel experimental paradigm.
  • To correlate behavioral judgments of agency with neural activity.

Main Methods:

  • Employed a virtual-reality setup combined with blood oxygen level-dependent functional magnetic resonance imaging (fMRI).
  • Subjects performed voluntary finger movements with real-time modulation of self-agency.
  • Behavioral testing assessed explicit judgments of self-agency and control.

Main Results:

  • Behavioral data confirmed paradigm validity and revealed biases in judging control.
  • fMRI identified two distinct neural networks: a 'leading' and a 'lagging' network.
  • These networks appear to represent a spatio-temporal flow of information crucial for SA.

Conclusions:

  • The identified leading and lagging networks are proposed to mediate self-agency perception.
  • The leading network likely detects mismatches, while the lagging network integrates this information for conscious awareness of agency.
  • This study provides novel insights into the neural basis of self-agency through an ecologically valid approach.