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25-08-2020 | ORIGINAL PAPER

Mindfulness Training is Associated with Changes in Alpha-Theta Cross-Frequency Dynamics During Meditation

Auteurs: Julio Rodriguez-Larios, Kian Foong Wong, Julian Lim, Kaat Alaerts

Gepubliceerd in: Mindfulness | Uitgave 12/2020

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Abstract

Objectives

Previous literature suggests that cross-frequency phase synchronization is a mechanism by which information is transmitted and coordinated in the brain. Since cross-frequency phase synchronization is only strictly possible when two oscillators form a harmonic frequency ratio (e.g., 2:1, 3:1), a recent theory posited that interactions between brain oscillations at different frequencies are facilitated/hindered by the transient occurrence of harmonic/non-harmonic cross-frequency arrangements. In this line, recent evidence has shown that 2:1 harmonic relationships between alpha (8–14 Hz) and theta (4–8 Hz) rhythms are reduced during meditative states in experienced practitioners. In the present study, we investigated whether mindfulness training in novices is associated with longitudinal changes in alpha-theta cross-frequency dynamics during meditation practice.

Methods

Thirty-six participants (mean age = 30.3; 2 men) underwent an 8-week mindfulness training program based on the mindfulness-based stress reduction (MBSR) syllabus and electroencephalography (EEG) recordings (64 electrodes) were performed during a guided meditation before and after the training.

Results

Mindfulness training compliance (quantified by minutes of attendance and practice at home) was significantly correlated to decreased 3:1 harmonicity and cross-frequency phase synchrony between alpha and theta rhythms during meditation.

Conclusions

Mindfulness training in novices was shown to be associated with a reduction in alpha-theta cross-frequency coupling during meditation. EEG parameters based on alpha-theta cross-frequency dynamics may be adequate for quantifying and/or facilitating mindfulness meditation training.
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Metagegevens
Titel
Mindfulness Training is Associated with Changes in Alpha-Theta Cross-Frequency Dynamics During Meditation
Auteurs
Julio Rodriguez-Larios
Kian Foong Wong
Julian Lim
Kaat Alaerts
Publicatiedatum
25-08-2020
Uitgeverij
Springer US
Gepubliceerd in
Mindfulness / Uitgave 12/2020
Print ISSN: 1868-8527
Elektronisch ISSN: 1868-8535
DOI
https://doi.org/10.1007/s12671-020-01487-3

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