title: Manual dexterity: Functional lateralisation patterns and motor efficiency.
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.
authors.affiliation: School of Psychology, University of Nottingham, University Park, Nottingham NG7 2RD, UK. Electronic address: Deborah.Serrien@nottingham.ac.uk.
authors.forename: Deborah J
authors.initials: DJ
authors.lastname: Serrien
authors.affiliation: School of Psychology, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
authors.forename: Michiel M
authors.initials: MM
authors.lastname: Sovijärvi-Spapé
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D005260:Female; D007839:Functional Laterality / Q000502:physiology*; D006225:Hand / Q000502:physiology*; D006801:Humans; D008297:Male; D009043:Motor Activity / Q000502:physiology*; D055815:Young Adult
keywords: EEG; Functional connectivity; Handedness; Motor control