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Related Experiment Video

Updated: May 23, 2026

Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses
05:21

Characterization of the Sense of Agency over the Actions of Neural-machine Interface-operated Prostheses

Published on: January 7, 2019

Involuntary feedback responses reflect a representation of partner actions.

Seth R Sullivan1, John H Buggeln1,2, Jan A Calalo3

  • 1Department of Biomedical Engineering, University of Delaware, Newark, United States.

Elife
|May 22, 2026
PubMed
Summary

Humans rapidly coordinate actions by using high-level partner representations that influence involuntary sensorimotor feedback. This study reveals top-down modulation in cooperative tasks, enhancing joint action flexibility.

Keywords:
game theoryhumanhuman-humanjoint actionmotor controlneuroscienceoptimal controlsensorimotor

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Last Updated: May 23, 2026

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Human Motor Control

Background:

  • Humans exhibit remarkable abilities in coordinating actions with partners.
  • Voluntary actions are jointly controlled via high-level partner representations.
  • Involuntary sensorimotor feedback responses occur during sudden perturbations.

Purpose of the Study:

  • To investigate if high-level partner representations rapidly influence low-level involuntary sensorimotor circuitry.
  • To determine if partner representations affect involuntary visuomotor feedback during cooperative tasks.

Main Methods:

  • Two experiments were conducted to test the hypothesis.
  • Dynamic game theory predictions were utilized.
  • Involuntary visuomotor feedback responses were analyzed during a cooperative sensorimotor task.

Main Results:

  • Involuntary visuomotor feedback responses were found to reflect partner representations.
  • Consideration of a partner's movement cost (accuracy and energy) influenced these responses.
  • Evidence for top-down modulation from high-level representations to sensorimotor circuits was observed.

Conclusions:

  • High-level partner representations can rapidly modulate lower-level sensorimotor feedback.
  • This top-down modulation enables fast and flexible feedback during joint actions.
  • The findings advance understanding of human cooperative sensorimotor control.