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These studies demonstrated less neural activation in the primary motor cortex, pre-motor area (PMA) and SMA in the expert pianists compared to novices during various finger tapping tasks (Hund-Georgiadis and Von Cramon 1999, Jancke et al 2000, Krings et al 2000, Meister et al 2005).
On fMRI, significant increases in signal strength were observed between pretest and post-test interventions, with increased signal shown in the area's for wrist flexion and extension of the affected hand in the pre-motor area and primary motor cortex.