Previous studies have demonstrated brain activation patterns during musical playing. However, while musical playing with multiple sources of auditory inputs is essential for musical practices and group performance, it is less understood. By using an MR-compatible piano keyboard, the present study compared musical playing with or without acoustic feedback or external timing reference. Functional MRI contrasts showed BOLD signal increase in bilateral Superior Temporal Gyrus and BA 42 during musical playing with an external timing reference, which indicates a neuronal processing pattern relating to the coordination of multiple auditory inputs.
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