A Brief Report: A single case design to examine short-term intracranial EGG patterns during focused meditation.

Author: Colgan DD1, Memmott T2, Klee D2, Ernst L2, Han SJ2, Oken B2
Affiliation: <sup>1</sup>3181 Sam Jackson Park Rd, United States. Electronic address: colgand@ohsu.edu. <sup>2</sup>3181 Sam Jackson Park Rd, United States.
Conference/Journal: Neurosci Lett.
Date published: 2019 Aug 17
Other: Volume ID: 134441 , Special Notes: doi: 10.1016/j.neulet.2019.134441. [Epub ahead of print] , Word Count: 145

PURPOSE: This study used a multiple crossover ABAB single case design to examine intracranial EEG data during a breath awareness meditation and an active control task.

RESULTS: Visual analyses suggest that a brief breath awareness mediation was consistently associated with increased alpha power when compared to the active control. Less consistent effects were found with theta, beta, and high gamma activity. Nonparametric t-tests provided additional support for this finding.

CONCLUSIONS: Acquiring intracranial EEG patterns during a meditative state may provide more insight into the physiology of meditation with less contamination of high-frequency muscle activity. While access to intracranial EEG during meditation is rarely available, single case design studies are considered adaptations of interrupted time-series designs and can provide an experimental evaluation of intervention effects.

Copyright © 2019. Published by Elsevier B.V.

KEYWORDS: Intracranial EEG; Meditation; Single Case Experimental Designs,Breath Awareness Meditation

PMID: 31430545 DOI: 10.1016/j.neulet.2019.134441