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Temporally resolved neural dynamics underlying handwriting

Abstract : How do the temporal dynamics of neural activity encode highly coordinated visual-motor behaviour? To capture the millisecond-resolved neural activations associated with fine visual-motor skills, we devised a co-registration system to simultaneously record electroencephalogram and handwriting kinematics while participants were performing four handwriting tasks (writing in Chinese/English scripts with their dominant/non-dominant hand). The neural activation associated with each stroke was clearly identified with a well-structured and reliable pattern. The functional significance of this pattern was validated by its significant associations with language, hand and the cognitive stages and kinematics of handwriting. Furthermore, the handwriting rhythmicity was found to be synchronised to the brain's ongoing theta oscillation, and the synchronisation was associated with the factor of language and hand. These major findings imply an implication between motor skill formation and the interplay between the rhythms in the brain and the peripheral systems.
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https://hal.archives-ouvertes.fr/hal-03479623
Contributor : Marieke Longcamp Connect in order to contact the contributor
Submitted on : Tuesday, December 14, 2021 - 2:08:54 PM
Last modification on : Sunday, June 26, 2022 - 5:58:53 AM
Long-term archiving on: : Tuesday, March 15, 2022 - 7:06:11 PM

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Leisi Pei, Marieke Longcamp, Frederick Koon-Shing Leung, Guang Ouyang. Temporally resolved neural dynamics underlying handwriting. NeuroImage, 2021, 244, pp.118578. ⟨10.1016/j.neuroimage.2021.118578⟩. ⟨hal-03479623⟩

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