Stepping in time: Alpha-mu and beta oscillations during a walking synchronization task.

Autor: Scanlon JEM; Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany. Electronic address: joanna.elizabeth.mary.scanlon@uol.de., Jacobsen NSJ; Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany., Maack MC; Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany., Debener S; Neuropsychology Lab, Department of Psychology, University of Oldenburg, Oldenburg, Germany; Cluster of Excellence Hearing4all, University of Oldenburg, Oldenburg, Germany; Center for Neurosensory Science and Systems, University of Oldenburg, Oldenburg, Germany.
Jazyk: angličtina
Zdroj: NeuroImage [Neuroimage] 2022 Jun; Vol. 253, pp. 119099. Date of Electronic Publication: 2022 Mar 14.
DOI: 10.1016/j.neuroimage.2022.119099
Abstrakt: Interpersonal behavioral synchrony is defined as the temporal coordination of action between two or more individuals. Humans tend to synchronize their movements during repetitive movement tasks such as walking. Mobile EEG technology now allows us to examine how this happens during gait. 18 participants equipped with foot accelerometers and mobile EEG walked with an experimenter in three conditions: With their view of the experimenter blocked, walking naturally, and trying to synchronize their steps with the experimenter. The experimenter walked following a headphone metronome to keep their steps consistent for all conditions. Step behavior and synchronization between the experimenter and participant were compared between conditions. Additionally, event-related spectral perturbations (ERSPs) were time-warped to the gait cycle in order to analyze alpha-mu (7.5-12.5 Hz) and beta (16-32 Hz) rhythms over the whole gait cycle. Step synchronization was significantly higher in the synchrony condition than in the natural condition. Likewise regarding ERSPs, right parietal channel (C4, C6, CP4, CP6) alpha-mu and central channel (C1, Cz, C2) beta power were suppressed from baseline in the walking synchrony condition compared to the natural walking condition. The natural and blocked conditions were not found to be significantly different in behavioral or spectral comparisons. Our results are compatible with the view that intentional synchronization employs systems associated with social interaction as well as the central motor system.
Competing Interests: Declaration of Competing Interests The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022. Published by Elsevier Inc.)
Databáze: MEDLINE
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