Role of the dorsolateral prefrontal cortex in context-dependent motor performance

The European Journal of Neuroscience
Y-Y LeeBeth E Fisher

Abstract

Context-dependent motor performance is a phenomenon in which people perform better in the environmental context where they originally practised a task. Some animal and computer simulation studies have suggested that context-dependent performance may be associated with neural activation of the dorsolateral prefrontal cortex (DLPFC). This study aimed to determine the role of the DLPFC in context-dependent motor performance by perturbing the neural processing of the DLPFC with repetitive transcranial magnetic stimulation (rTMS) in healthy adults. Thirty healthy adults were recruited into the Control, rTMS DLPFC and rTMS Vertex groups. The participants practised three finger sequences associated with a specific incidental context (a coloured circle and a location on the computer screen). One day following practice, the rTMS groups received 1 Hz rTMS prior to the testing conditions in which the sequence-context associations remained the same as practice (SAME) or changed (SWITCH). All three groups improved significantly over practice on day 1. The second day testing results showed that the DLPFC group had a significantly lower decrease in motor performance under the SWITCH condition than the Control and Vertex groups. This finding s...Continue Reading

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Sep 17, 2015·Journal of Motor Behavior·Ya-Yun LeeBeth E Fisher

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Citations

Dec 10, 2016·Journal of Motor Behavior·Taisei Sugiyama, Sook-Lei Liew
Nov 7, 2019·Neurorehabilitation and Neural Repair·Ya-Yun LeeBeth E Fisher

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