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  Kinematic profiles suggest differential control processes involved in bilateral in-phase and anti-phase movements

Shih, P.-C., Steele, C., Nikulin, V. V., Villringer, A., & Sehm, B. (2019). Kinematic profiles suggest differential control processes involved in bilateral in-phase and anti-phase movements. Scientific Reports, 9(1): 3273. doi:10.1038/s41598-019-40295-1.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-1984-C Version Permalink: http://hdl.handle.net/21.11116/0000-0004-9EA8-D
Genre: Journal Article

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 Creators:
Shih, Pei-Cheng1, Author              
Steele, Christopher1, 2, Author              
Nikulin, Vadim V.1, Author              
Villringer, Arno1, 3, Author              
Sehm, Bernhard1, 3, Author              
Affiliations:
1Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634549              
2Department of Psychology, Concordia University, Montréal, QC, Canada, ou_persistent22              
3Clinic for Cognitive Neurology, University of Leipzig, Germany, ou_persistent22              

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Free keywords: Acceleration; Article; Coordination; Drawing; Human; Human experiment; Limb
 Abstract: In-phase and anti-phase movements represent two basic coordination modes with different characteristics: during in-phase movements, bilateral homologous muscle groups contract synchronously, whereas during anti-phase movements, they contract in an alternating fashion. Previous studies suggested that in-phase movements represent a more stable and preferential bilateral movement template in humans. The current experiment aims at confirming and extending this notion by introducing new empirical measures of spatiotemporal dynamics during performance of a bilateral circle drawing task in an augmented-reality environment. First, we found that anti-phase compared to in-phase movements were performed with higher radial variability, a result that was mainly driven by the non-dominant hand. Second, the coupling of both limbs was higher during in-phase movements, corroborated by a lower inter-limb phase difference and higher inter-limb synchronization. Importantly, the movement acceleration profile between bilateral hands followed an in-phase relationship during in-phase movements, while no specific relationship was found in anti-phase condition. These spatiotemporal relationships between hands support the hypothesis that differential neural processes govern both bilateral coordination modes and suggest that both limbs are controlled more independently during anti-phase movements, while bilateral in-phase movements are elicited by a common neural generator.

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Language(s): eng - English
 Dates: 2018-05-102019-02-112019-03-01
 Publication Status: Published online
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1038/s41598-019-40295-1
PMID: 30824858
PMC: PMC6397147
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Funding organization : Max Planck Society

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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 9 (1) Sequence Number: 3273 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322