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Evidence for we-representations during joint action planning.

Dimitrios Kourtis1, Mateusz Woźniak2, Natalie Sebanz3

  • 1Psychology, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK; Department of Cognitive Science, Central European University, Budapest, Hungary.

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Summary
This summary is machine-generated.

People engaged in joint action create group-level plans for shared outcomes. This research shows that planning joint actions, not just individual ones, improves coordination and efficiency.

Keywords:
Action planningEEGJoint actionSocial cognitionWe-representations

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Area of Science:

  • Cognitive Neuroscience
  • Social Psychology
  • Motor Control

Background:

  • Joint action requires coordinating individual contributions towards a shared goal.
  • Understanding the neural basis of joint action planning is crucial for explaining complex social behaviors.

Purpose of the Study:

  • To investigate whether individuals plan joint action outcomes at the group level.
  • To examine the neural mechanisms underlying individual versus joint action planning.

Main Methods:

  • Electroencephalography (EEG) recorded from pairs of participants performing coordinated actions.
  • A pre-cue manipulated the specification of individual actions and/or joint configurations.
  • Participants prepared actions for 1200 ms before a Go cue initiated synchronized performance.

Main Results:

  • Action onsets were faster when joint configurations were pre-specified, indicating efficient joint planning.
  • EEG data revealed reduced P600 amplitude (less ambiguity) and increased sensorimotor activity (alpha/mu suppression, CNV) when joint outcomes were specified.
  • These neural changes suggest enhanced representation of action goals and interpersonal coordination patterns.

Conclusions:

  • Joint action planning involves group-level representations of joint outcomes, not solely individual contributions.
  • Pre-specifying joint configurations facilitates the formation of structured joint action plans.
  • Neural evidence supports the existence of distinct planning processes for individual and joint actions.