EEG Spectral Analysis on OM Mantra Meditation: A Pilot Study

Area of Science:

• Neuroscience
• Cognitive Science
• Psychology

Background:

• Mantra meditation, particularly the "OM" chant, is a widely practiced spiritual and relaxation technique.
• Understanding the neurophysiological effects of mantra meditation is crucial for validating its benefits.

Purpose of the Study:

• To investigate the electroencephalogram (EEG) oscillatory changes following loud OM mantra meditation.
• To explore the temporal dynamics and brain region involvement during and after OM chanting.

Main Methods:

• Twenty-three naive meditators participated in a 30-minute loud OM chanting session.
• EEG recordings were taken before and after the meditation session.
• Spectral domain analysis and repeated measures ANOVA were employed for EEG signal analysis.

Main Results:

• No specific frequency band involvement was identified directly linked to OM mantra meditation.
• A significant increase in theta power was observed across all brain regions after meditation.
• Higher theta amplitude post-meditation suggests a reduction in cortical arousal, indicative of relaxation.

Conclusions:

• Loud OM mantra meditation is associated with increased theta power, supporting its role in promoting relaxation.
• This practice can serve as an accessible entry point for naive meditators, demystifying meditation.
• The findings encourage broader adoption of meditation for its potential mental health benefits.