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Characterization of Meditation EEG based on Consistency of Covariance Matrices over Time

R. Ganesan, Kanishka Sharma

IEEE India Conference December 10, 2020 DOI: 10.1109/indicon49873.2020.9342426 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Observational study Peer reviewed
Sample size 15
Population Practitioners of peace and angelic meditations (Rajayoga meditation of Prajapita Brahmakumaris World Spiritual University)
Intervention Angelic meditation
Topics Meditation
Key findings The covariance matrices of EEG signals become more uniform during meditation, with the frontal region showing significantly decreased distances between matrices of successive epochs.

Abstract

Electroencephalogram (EEG) is investigated for changes in the pattern of brain activity during meditation. Correlation between the neural activity in each region with those of other regions of the brain are studied. EEG recorded from fifteen practitioners of the peace and angelic meditations, being part of the Rajayoga meditation of Prajapita Brahmakumaris World Spiritual University is analyzed for this study. The mean and variance of the Frobenius norms of the difference matrices between the covariance matrices of successive epochs is used to study the meditative and non-meditative states. Analysis has been carried out region wise. The covariance matrices become more uniform during meditation, leading to decreased distance between matrices of successive epochs. The frontal region shows significantly decreased distances between the covariance matrices during meditation.

Comparable studies

Other observational and cohort studies on meditation, most cited first.

Study Year Design Participants
Using Self-Report Assessment Methods to Explore Facets of Mindfulness Undergraduate students 2006 Observational cohort
Effectiveness of a meditation-based stress reduction program in the treatment of anxiety disorders Patients with generalized anxiety disorder or panic disorder with or without agoraphobia 1992 Observational cohort n = 22
Meditation experience is associated with increased cortical thickness Participants with extensive Insight meditation experience and matched controls 2005 Observational cohort n = 20
Meditation experience is associated with differences in default mode network activity and connectivity Experienced meditators and matched meditation-naive controls 2011 Observational cohort
Long-term meditators self-induce high-amplitude gamma synchrony during mental practice Long-term Buddhist practitioners and controls 2004 Observational cohort

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