Research Article

Cross-Modal Audiovisual Modulation of Corticospinal Motor Synergies in Professional Piano Players: A TMS Study during Motor Imagery

Figure 1

Experimental sketch. Triads were prompted through a visual, auditory, or audiovisual stimulus. The visual stimulus was the chord written on a stave (a); small numbers over each stave denote the required fingering for each chord (i.e., 1 stands for the thumb, 2 for the index finger, and 5 for the little finger). Participants were instructed on the fingering to employ before initiating the experiment; therefore, no further indication on the fingers to be used were administered as chords were prompted. The imagined extension of the hand increased across chords (b); the broken finger in the 10th interval chord denotes that the actual execution was impossible due to biomechanical constraints.
(a)
(b)