Siguiendo el concepto de Don Millman, aparece este estudio del journal of Neurophysiology.
Abstract
1. We used transcranial magnetic stimulation (TMS) to study
the role of plastic changes of the human motor system in the acquisition
of new fine motor skills. We mapped the cortical motor areas targeting
the contralateral long finger flexor and extensor muscles in subjects
learning a one-handed, five-finger exercise on the piano. In a second
experiment, we studied the different effects of mental and physical
practice of the same five-finger exercise on the modulation of the
cortical motor areas targeting muscles involved in the task. 2. Over the
course of 5 days, as subjects learned the one-handed, five-finger
exercise through daily 2-h manual practice sessions, the cortical motor
areas targeting the long finger flexor and extensor muscles enlarged,
and their activation threshold decreased. Such changes were limited to
the cortical representation of the hand used in the exercise. No changes
of cortical motor outputs occurred in control subjects who underwent
daily TMS mapping but did not practice on the piano at all (control
group 1). 3. We studied the effect of increased hand use without
specific skill learning in subjects who played the piano at will for 2 h
each day using only the right hand but who were not taught the
five-finger exercise (control group 2) and who did not practice any
specific task. In these control subjects, the changes in cortical motor
outputs were similar but significantly less prominent than in those
occurring in the test subjects, who learned the new skill.(ABSTRACT
TRUNCATED AT 250 WORDS)
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