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  The medial frontal cortex mediates self-other discrimination in the joint Simon task: A tDCS study

Liepelt, R., Klempova, B., Dolk, T., Colzato, L. S., Ragert, P., Nitsche, M. A., et al. (2016). The medial frontal cortex mediates self-other discrimination in the joint Simon task: A tDCS study. Journal of Psychophysiology, 30, 87-101. doi:10.1027/0269-8803/a000158.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-F0DB-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-FFFB-6
Genre: Journal Article

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 Creators:
Liepelt, Roman1, Author              
Klempova, Bibiana1, Author
Dolk, Thomas2, Author              
Colzato, Lorenza S.3, Author
Ragert, Patrick4, Author              
Nitsche, Michael A.5, 6, 7, Author
Hommel, Bernhard3, Author
Affiliations:
1Department of Psychology, Münster University, Germany, ou_persistent22              
2Department Psychology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634564              
3Cognitive Psychology Unit, Institute of Psychology, Leiden University, the Netherlands, ou_persistent22              
4Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
5Department of Clinical Neurophysiology, University Medical Center, Göttingen, Germany, ou_persistent22              
6Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany, ou_persistent22              
7Department of Neurology, University Hospital Bergmannsheil, Bochum, Germany, ou_persistent22              

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Free keywords: tDCS; Anterior medial frontal cortex; Right temporo-parietal junction; Joint action; Joint Simon effect
 Abstract: Interacting with other individuals confronts cognitive control systems with the problem of how to distinguish between self-generated (internally triggered) and other-generated (externally triggered) action events. Recent neuroscience studies identified two core brain regions, the anterior medial frontal cortex (aMFC) and the right temporo-parietal junction (rTPJ), to be potentially involved in resolving this problem either by enhancing self-generated versus other-generated event representations (via aMFC) and/or by inhibiting event representations that are externally triggered (via rTPJ). Using transcranial direct current stimulation (tDCS), we investigated the role of the aMFC and the rTPJ for the online control of self-generated versus other-generated event representations in a joint Simon task. In two experimental sessions, participants received anodal, cathodal, or sham tDCS (1 mA intensity applied for 20 min), while performing an auditory joint Simon task. In addition to a general performance enhancement during cathodal (inhibitory) and anodal (excitatory) stimulation with increased practice, we found a significantly increased joint Simon effect (JSE) during cathodal stimulation of the aMFC (Experiment 1), as compared to sham stimulation. No modulation of the JSE was found during stimulation of the rTPJ (Experiment 2). By enhancing self-generated event representations the aMFC seems to be crucially involved in resolving the self-other discrimination problem in the joint Simon task.

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Language(s): eng - English
 Dates: 2015-01-312015-07-122016-05-032016
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1027/0269-8803/a000158
 Degree: -

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Title: Journal of Psychophysiology
Source Genre: Journal
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Publ. Info: Göttingen, Germany : American Psychological Association (PsycARTICLES)
Pages: - Volume / Issue: 30 Sequence Number: - Start / End Page: 87 - 101 Identifier: ISSN: 0269-8803
CoNE: https://pure.mpg.de/cone/journals/resource/954928554373