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Online Movements Reflect Ongoing Deliberation.

Jan A Calalo1, Truc T Ngo2, Seth R Sullivan2

  • 1Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19711 Jan.Calalo@gmail.com cashabackjga@gmail.com.

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This summary is machine-generated.

Human movement reflects ongoing decision-making processes before a choice is made. This study reveals how continuous deliberation influences motor control and decision urgency signals during action.

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Area of Science:

  • Cognitive neuroscience
  • Motor control
  • Decision-making

Background:

  • Previous research explored decision deliberation at movement onset.
  • The expression of ongoing deliberation during movement, prior to a decision, remains largely unexplored.

Purpose of the Study:

  • To investigate if ongoing deliberation influences motor processes before a decision is finalized.
  • To understand how movement reflects continuous decision-making.

Main Methods:

  • Participants observed tokens moving towards left or right targets.
  • Lateral hand movements were analyzed to reflect deliberation.
  • A deliberation urgency signal was modeled.

Main Results:

  • Lateral hand movements during the task mirrored the ongoing deliberation process.
  • The deliberation urgency signal was crucial for predicting decisions.
  • This signal offers a new perspective on past movement behaviors.

Conclusions:

  • Ongoing deliberation actively shapes motor processes before a decision.
  • Movement itself can express continuous decision-making.
  • The developed paradigm offers novel insights into the decision-action interplay.