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Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

Combining Behavior and EEG to Study the Effects of Mindfulness Meditation on Episodic Memory

Published on: May 11, 2020

Meditation experience is associated with differences in default mode network activity and connectivity.

Judson A Brewer¹, Patrick D Worhunsky, Jeremy R Gray

¹Department of Psychiatry, Yale University School of Medicine, New Haven, CT 06511, USA. judson.brewer@yale.edu

Proceedings of the National Academy of Sciences of the United States of America

|November 25, 2011

Summary

Experienced meditators show reduced default mode network activity, suggesting a neural basis for less mind-wandering and potentially increased happiness through meditation.

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Area of Science:

Neuroscience
Psychology
Contemplative Studies

Background:

Philosophical traditions suggest "living in the moment" enhances happiness.
Human mind-wandering is common, linked to unhappiness and self-referential brain activity.
The default mode network (DMN) is implicated in mind-wandering.

Purpose of the Study:

Investigate neural differences in experienced meditators versus controls.
Examine brain activity during various meditation practices.
Understand the neural mechanisms underlying meditation's effects on mind-wandering.

Main Methods:

Functional magnetic resonance imaging (fMRI) was used to measure brain activity.
Experienced meditators and meditation-naive controls were studied.
Participants engaged in Concentration, Loving-Kindness, and Choiceless Awareness meditations.

Main Results:

Experienced meditators exhibited relative deactivation in key default mode network regions (medial prefrontal and posterior cingulate cortices) across all meditation types.
Functional connectivity analysis revealed stronger coupling in meditators between the posterior cingulate, dorsal anterior cingulate, and dorsolateral prefrontal cortices.
These coupled regions are associated with self-monitoring and cognitive control.

Conclusions:

Findings indicate differences in the default mode network consistent with decreased mind-wandering in experienced meditators.
The study provides insights into the neural underpinnings of meditation.
These neural changes may contribute to the happiness benefits associated with "living in the moment".