Long-term practice of intuitive inquiry meditation modulates EEG dynamics during self-schema processing

Area of Science:

• Neuroscience
• Cognitive Psychology
• Buddhist Studies

Background:

• Intuitive inquiry meditation is a Zen/Chan practice exploring self-concept through doubt.
• Self-schema processing is crucial for understanding personal identity.
• Previous research lacks detailed neural correlates of this meditation's effects.

Purpose of the Study:

• Investigate neural mechanisms of intuitive inquiry meditation on self-schema flexibility.
• Examine the role of doubt and belief in self-exploration.
• Differentiate effects in beginner versus experienced practitioners.

Main Methods:

• Event-related potential (ERP) study with 20 experienced and 18 beginner meditators.
• 128-channel electroencephalography (EEG) system used for data collection.
• Analysis of EEG data using EEGLAB, including event-related spectral perturbation (ERSP).

Main Results:

• Beginners showed reduced brain activity for Buddha images, not self-images.
• Experienced meditators showed reduced brain activity for self-images, not Buddha images.
• Experienced meditators exhibited greater theta spectral power and intertrial coherence (ITC), indicating enhanced cognitive flexibility.

Conclusions:

• Intuitive inquiry meditation facilitates detachment from Buddha concepts in beginners and self-concepts in experienced practitioners.
• Experienced meditators display neural dynamics supporting spontaneous self-detachment.
• Findings elucidate the neural basis of doubt and self-schema processing in long-term meditation.