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Neural correlates of verbal joint action : ERPs reveal common perception and action systems in a shared-Stroop task
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Demiral, Sukru Baris, Gambi, Chiara, Nieuwland, Mante S. and Pickering, Martin J. (2016) Neural correlates of verbal joint action : ERPs reveal common perception and action systems in a shared-Stroop task. Brain Research, 1649 (Part A). pp. 79-89. doi:10.1016/j.brainres.2016.08.025
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Official URL: https://doi.org/10.1016/j.brainres.2016.08.025
Abstract
Recent social-cognitive research suggests that the anticipation of co-actors' actions influences people's mental representations. However, the precise nature of such representations is still unclear. In this study we investigated verbal joint representations in a delayed Stroop paradigm, where each participant responded to one color after a short delay. Participants either performed the task as a single actor (single-action, Experiment 1), or they performed it together (joint-action, Experiment 2). We investigated effects of co-actors' actions on the ERP components associated with perceptual conflict (Go N2) and response selection (P3b). Compared to single-action, joint-action reduced the N2 amplitude congruency effect when participants had to respond (Go trials), indicating that representing a co-actor's utterance helped to dissociate action codes and attenuated perceptual conflict for the responding participant. Yet, on NoGo trials the centro-parietal P3 (P3b) component amplitude increased for joint-action, suggesting that participants mapped the stimuli onto the co-actor's upcoming response as if it were their own response. We conclude that people represent others' utterances similarly to the way they represent their own utterances, and that shared perception-action codes for self and others can sometimes reduce, rather than enhance, perceptual conflict.
| Item Type: | Journal Item | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Psychology | ||||||||
| Journal or Publication Title: | Brain Research | ||||||||
| Publisher: | Elsevier | ||||||||
| ISSN: | 0006-8993 | ||||||||
| Official Date: | October 2016 | ||||||||
| Dates: |
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| Volume: | 1649 | ||||||||
| Number: | Part A | ||||||||
| Page Range: | pp. 79-89 | ||||||||
| DOI: | 10.1016/j.brainres.2016.08.025 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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