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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
neuroscience
Neurophysiological correlates of visuo-motor learning through mental and physical practice
Neuropsychologia, Volume 55, No. 1, Year 2014
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Description
We have previously shown that mental rehearsal can replace up to 75% of physical practice for learning a visuomotor task (Allami, Paulignan, Brovelli, & Boussaoud, (2008). Experimental Brain Research, 184, 105-113). Presumably, mental rehearsal must induce brain changes that facilitate motor learning. We tested this hypothesis by recording scalp electroencephalographic activity (EEG) in two groups of subjects. In one group, subjects executed a reach to grasp task for 240 trials. In the second group, subjects learned the task through a combination of mental rehearsal for the initial 180 trials followed by the execution of 60 trials. Thus, one group physically executed the task for 240 trials, the other only for 60 trials. Amplitudes and latencies of event-related potentials (ERPs) were compared across groups at different stages during learning. We found that ERP activity increases dramatically with training and reaches the same amplitude over the premotor regions in the two groups, despite large differences in physically executed trials. These findings suggest that during mental rehearsal, neuronal changes occur in the motor networks that make physical practice after mental rehearsal more effective in configuring functional networks for skilful behaviour. © 2013 Elsevier Ltd.
Authors & Co-Authors
Allami, Nadia
France, Bron
Institut Des Sciences Cognitives Marc Jeannerod
Brovelli, Andrea
France, Marseille
Institut de Neurosciences de la Timone
Hamzaoui, El Mehdi
Morocco, Rabat
Faculté Des Sciences Rabat
Regragui, Fakhita
Morocco, Rabat
Faculté Des Sciences Rabat
Paulignan, Yves
France, Bron
Institut Des Sciences Cognitives Marc Jeannerod
Boussaoud, Driss
France, Marseille
Institut de Neurosciences Des Systèmes
Statistics
Citations: 26
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1016/j.neuropsychologia.2013.12.017
ISSN:
00283932
e-ISSN:
18733514