Cited by 24Action Observation and SynchronizationTranscranial Magnetic Stimulation StudiesNeural dynamics and brain function

Midfrontal Theta Transcranial Alternating Current Stimulation Facilitates Motor Coordination in Dyadic Human–Avatar Interactions

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Boukarras, Sarah, Özkan, Duru Gun, Era, Vanessa, Moreau, Quentin, Tieri, Gaetano, Candidi, Matteo·2022·Journal of Cognitive Neuroscience

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Abstract

Synchronous interpersonal motor interactions require moment-to-moment prediction and proactive monitoring of the partner's actions. Neurophysiologically, this is highlighted by an enhancement of midfrontal theta (4-7 Hz) oscillations. In this study, we explored the causal role of midfrontal theta for interpersonal motor interactions using transcranial alternating current stimulation (tACS). We implemented a realistic human-avatar interaction task in immersive virtual reality where participants controlled a virtual arm and hand to press a button synchronously with a virtual partner. Participants completed the task while receiving EEG-informed theta (Experiment 1) or beta (control frequency, Experiment 2) tACS over the frontal midline, as well as sham stimulation as a control. Results showed that midfrontal theta tACS significantly improved behavioral performance (i.e., reduced interpersonal asynchrony) and participants' motor strategies (i.e., increased movement times and reduced RTs), whereas beta tACS had no effect on these measures. These results suggest that theta tACS over frontal areas facilitates action monitoring and motor abilities supporting interpersonal interactions.

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  1. Zaehle, T., Rach, S., & Herrmann, C. S. (2010). Transcranial alternating current stimulation enhances individual alpha activity in human EEG. PloS one, 5(11), e13766. https://doi.org/10.1371/journal.pone.0013766 · DOI

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Authors
Boukarras, S., Özkan, D. G., Era, V., Moreau, Q., Tieri, G., & Candidi, M.
Affiliations
  • Fondazione Santa Lucia (IT)
  • Unitelma Sapienza University (IT)
Corresponding author
  • Boukarras, Sarah
  • Candidi, Matteo
Venue
Journal of Cognitive Neuroscience
Publisher
MIT Press
Published
2022-03-31
Volume
34
Issue
5
Pages
897-915
ISSN
  • 0898-929X (ISSN-L)
  • 1530-8898
OpenAlex
W4212842882
Cited by
24
References
119
Citations by year
2026: 3 · 2025: 5 · 2024: 3 · 2023: 8 · 2022: 5
FWCI
4.96
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Journal of Cognitive Neuroscience (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
Funders
  • Italian Ministry of Health (Ricerca Finalizzata, Giovani Ricercatori 2016, protocol number GR-2016-02361008)
  • Fondazione Umberto Veronesi (Fellowship)
  • Sapienza Università di Roma (Progetti di Ricerca Grandi 2020, RG120172B8343252)
Topics
  • Social Sciences › Psychology › Social Psychology › Action Observation and Synchronization
  • Life Sciences › Neuroscience › Neurology › Transcranial Magnetic Stimulation Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
transcranial alternating current stimulation, human-avatar interaction, virtual reality, action monitoring, beta oscillations, motor synchronization, motor control strategies
MeSH terms
Humans, Interpersonal Relations, Movement, Theta Rhythm, Transcranial Direct Current Stimulation

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