Cited by 159Mindfulness and Compassion InterventionsEEG and Brain-Computer InterfacesEmotion and Mood Recognition

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Quantitative change of EEG and respiration signals during mindfulness meditation

Open access
Ahani, Asieh, Wahbeh, Helane, Nezamfar, Hooman, Miller, Meghan, Erdogmus, Deniz, Oken, Barry·2014·Journal of NeuroEngineering and Rehabilitation

Abstract

BACKGROUND: This study investigates measures of mindfulness meditation (MM) as a mental practice, in which a resting but alert state of mind is maintained. A population of older people with high stress level participated in this study, while electroencephalographic (EEG) and respiration signals were recorded during a MM intervention. The physiological signals during meditation and control conditions were analyzed with signal processing. METHODS: EEG and respiration data were collected and analyzed on 34 novice meditators after a 6-week meditation intervention. Collected data were analyzed with spectral analysis, phase analysis and classification to evaluate an objective marker for meditation. RESULTS: Different frequency bands showed differences in meditation and control conditions. Furthermore, we established a classifier using EEG and respiration signals with a higher accuracy (85%) at discriminating between meditation and control conditions than a classifier using the EEG signal only (78%). CONCLUSION: Support vector machine (SVM) classifier with EEG and respiration feature vector is a viable objective marker for meditation ability. This classifier should be able to quantify different levels of meditation depth and meditation experience in future studies.

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Crossref · 10.1186/1743-0003-11-87

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Figures

Figure 1 Six regions over scalp. Electrodes divided into six regions over scalp as frontal, central, parietal, occipital, right temporal and left temporal.
Figure 1 Six regions over scalp. Electrodes divided into six regions over scalp as frontal, central, parietal, occipital, right temporal and left temporal.CC BY · PubMed Central
Figure 2 Classification process flow chart.
Figure 2 Classification process flow chart.CC BY · PubMed Central
Figure 3 EEG spectral analysis. PSD estimation of EEG signal over alpha, beta and theta bands at different locations over scalp for meditation and control conditions averaged across subjects (N = 34). Star symbols show which comparisons are statistically significant.
Figure 3 EEG spectral analysis. PSD estimation of EEG signal over alpha, beta and theta bands at different locations over scalp for meditation and control conditions averaged across subjects (N = 34). Star symbols show which comparisons are statistically significant.CC BY · PubMed Central
Figure 4 Respiration time frequency analysis. Time frequency Analysis of respiration signal shows more activity in lower frequencies during meditation. The figure shows the Stockwell coefficients amplitude averaged across subjects (N = 34) in meditation and control conditions.
Figure 4 Respiration time frequency analysis. Time frequency Analysis of respiration signal shows more activity in lower frequencies during meditation. The figure shows the Stockwell coefficients amplitude averaged across subjects (N = 34) in meditation and control conditions.CC BY · PubMed Central
Figure 5 EEG phase analysis. Number of pairs of electrodes with higher PLV than the threshold averaged across subjects (N = 34). Star symbols show which comparisons are statistically significant.
Figure 5 EEG phase analysis. Number of pairs of electrodes with higher PLV than the threshold averaged across subjects (N = 34). Star symbols show which comparisons are statistically significant.CC BY · PubMed Central
Figure 6 SVM classification results. SVM classification accuracy using EEG, Respiration and joint (N = 34). Besides the overall ANOVA being significant, all pairwise differences using paired t tests were significantly different. Star symbols show which comparisons are statistically significant.
Figure 6 SVM classification results. SVM classification accuracy using EEG, Respiration and joint (N = 34). Besides the overall ANOVA being significant, all pairwise differences using paired t tests were significantly different. Star symbols show which comparisons are statistically significant.CC BY · PubMed Central

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Citations

Cites

Research works printed but not linked: 3

  1. Welsh KA, Breitner JCS, Magruder-Habib KM: Detection of dementia in the elderly using telephone screning of cognitive status. Neuropsychiatry Neuropsychol Behav Neurol 1993, 6: 103-110.
  2. Bach FR, Jordan MI: Kernel independent component analysis. J Mach Learn Res 2002, 3: 1-48.
  3. Oken B, Zajdel D, Wild H: Induced and trait differences in EEG phase synchrony and power for experienced meditators versus non-meditators. 2007.

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Metadata

Authors
Ahani, A., Wahbeh, H., Nezamfar, H., Miller, M., Erdogmus, D., & Oken, B.
Affiliations
  • Northeastern University (US)
  • Oregon Health & Science University (US)
Corresponding author
Oken, Barry
Venue
Journal of NeuroEngineering and Rehabilitation
Published
2014-05-14
Volume
11
Issue
1
Pages
87-87
ISSN
1743-0003 (ISSN-L)
OpenAlex
W2153257584
Cited by
159
References
51
Citations by year
2026: 16 · 2025: 19 · 2024: 21 · 2023: 19 · 2022: 16 · 2021: 16 · 2020: 13 · 2019: 7 · 2018: 7 · 2017: 10 · 2016: 10 · 2015: 4
FWCI
9.47
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of NeuroEngineering and Rehabilitation (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation (0914808, 1149570, 1136027)
  • National Center for Complementary and Integrative Health (K24AT005121, K01AT004951)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Mindfulness and Compassion Interventions
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Physical Sciences › Computer Science › Artificial Intelligence › Emotion and Mood Recognition
Keywords
mindfulness meditation, EEG, respiratory signals, support vector classifier, older adults, stress, frequency band analysis, phase analysis
MeSH terms
Aged, Brain, Electroencephalography, Female, Humans, Male, Middle Aged, Respiration, Signal Processing, Computer-Assisted, Meditation, Support Vector Machine, Mindfulness

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