Auditory-motor interactions are sensitive to adaptation and learning on multiple timescales

Auditory evoked responses at N100 show a motor-to-auditory prediction error during unpredictable piano key-to-pitch remapping, and its magnitude depends on prior no-change context length.

• Why it matters: The work addresses how the brain updates internal action–sound models when sensorimotor mappings change unpredictably, separating motor prediction violations from purely auditory surprise and execution effects.
• What they did: Participants played a piano task where key-to-pitch mappings switched unpredictably among three configurations; at change boundaries, neural responses were analyzed to test whether N100 reflected motor-to-auditory prediction errors, then compared across short-term context lengths.
• The result: Longer periods without map change produced greater N100 prediction-error responses, while 30 minutes of training on a single map modulated P50 amplitude only for the trained map, consistent with slow sensorimotor-map updating.

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