Manual dexterity: functional lateralisation patterns and motor efficiency

Serrien, Debroah J.; Sovij�rvi-Spap�, Michiel M.

Abstract

Manual tasks are an important goal-directed ability. In this EEG work, we studied how handedness affects the hemispheric lateralisation patterns during performance of visually-driven movements with either hand. The neural correlates were assessed by means of EEG coherence whereas behavioural output was measured by motor error. The EEG data indicated that left- and right-handers showed distinct recruitment patterns. These involved local interactions between brain regions as well as more widespread associations between brain systems. Despite these differences, brain-behaviour correlations highlighted that motor efficiency depended on left-sided brain regions across groups. These results suggest that skilled hand motor control relies on different neural patterns as a function of handedness whereas behavioural efficiency is linked with the left hemisphere. In conclusion, the present findings add to our understanding about principles of lateralised organisation as a function of handedness.

Citation

Serrien, D. J., & Sovijärvi-Spapé, M. M. (in press). Manual dexterity: functional lateralisation patterns and motor efficiency. Brain and Cognition, 108, https://doi.org/10.1016/j.bandc.2016.07.005

• Journal Article Type: Article
• Acceptance Date: Jul 15, 2016
• Online Publication Date: Jul 27, 2016
• Deposit Date: Oct 14, 2016
• Publicly Available Date: Oct 14, 2016
• Journal: Brain and Cognition
• Print ISSN: 0278-2626
• Electronic ISSN: 1090-2147
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 108
• DOI: https://doi.org/10.1016/j.bandc.2016.07.005
• Keywords: Motor control; Handedness; EEG; Functional connectivity
• Public URL: https://nottingham-repository.worktribe.com/output/799281
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S027826261630149X
• Contract Date: Oct 14, 2016