Musical training increases functional connectivity, but does not enhance mu suppression.

Area of Science:

• Neuroscience
• Cognitive Science
• Music Psychology

Background:

• Musical training involves integrating sensory and motor processes, crucial for action representation in sound.
• Previous research suggests action representation for music may depend on sensorimotor experience or be more general.
• Electroencephalography (EEG) mu suppression has been used to study action representation for sounds in musicians.

Purpose of the Study:

• To investigate training-related changes in neural dynamics, specifically mu suppression and task-related coherence, in non-musicians learning piano.
• To determine if short-term musical training induces specific sound-action mappings reflected in EEG measures.
• To explore differences in audiomotor integration between short-term novice training and long-term expert training.

Main Methods:

• Non-musicians underwent short-term piano training, learning specific sound-action mappings for five fingers.
• EEG recordings were used to measure mu suppression and task-related coherence before and after training.
• Stimuli included trained piano tones and rhythm sequences to assess training specificity.

Main Results:

• No significant changes in mu suppression were observed after training.
• Task-related coherence, reflecting functional connectivity in audiomotor areas, significantly increased post-training.
• Increased coherence was specific to trained piano tones, not general rhythm sequences.

Conclusions:

• Short-term piano training in novices enhances functional connectivity in audiomotor areas, indexed by task-related coherence.
• Mu suppression may not be sensitive to early stages of audiomotor integration in novices.
• Findings suggest distinct neural mechanisms and stages of integration associated with short-term novice versus long-term expert musical training.