Active and Passive Rhythmic Music Therapy Interventions Differentially Modulate Sympathetic Autonomic Nervous System...

Area of Science:

• Psychophysiology
• Neuroscience
• Psychiatry

Background:

• Autonomic nervous system (ANS) and hypothalamic-pituitary-adrenal (HPA) axis dysregulation are linked to psychiatric disorders.
• Music therapy (MT) influences physiological stress markers like heart-rate variability (HRV) and salivary cortisol.
• The differential effects of active versus passive MT on these systems are not well understood.

Purpose of the Study:

• To investigate the distinct effects of active and passive music therapy on autonomic nervous system (ANS) and hypothalamic-pituitary-adrenal (HPA) axis activity.
• To determine if rhythmic engagement in music therapy influences physiological stress responses differently.

Main Methods:

• A crossover study design with 16 healthy participants.
• Interventions included 40-minute sessions of active music therapy (rhythmic engagement) and passive music therapy (listening).
• Physiological markers measured included heart-rate variability (HRV) components (HF, LF/HF) and salivary alpha-amylase and cortisol levels before and after each intervention.

Main Results:

• Active music therapy significantly decreased the LF/HF ratio, indicating reduced sympathetic ANS activation.
• Passive music therapy significantly increased the LF/HF ratio, suggesting increased sympathetic ANS activation.
• Differential modulation of the sympathetic ANS was observed between active and passive music therapy interventions.

Conclusions:

• Music therapy demonstrably affects the autonomic nervous system.
• The mode of engagement in music therapy (active rhythmic vs. passive listening) leads to distinct physiological outcomes.
• Findings suggest potential therapeutic applications of tailored music therapy in managing stress and arousal in psychiatric contexts.