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Cited by 43Psychedelics and Drug StudiesParanormal Experiences and BeliefsNeural dynamics and brain function

EEG gamma coherence and other correlates of subjective reports during ayahuasca experiences.

Stuckey, David E., Lawson, Robert, Luna, Luis Eduardo·2005·Journal of Psychoactive Drugs
DOI 10.1080/02791072.2005.10399798
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Abstract

The current study examined QEEG power and coherence of ayahuasca experiences with two experienced participants in a Brazilian jungle setting. An exploratory case series design was adopted for naturalistic field research. EEGs recorded during visual imagery was compared to eyes-closed baselines. The most important findings were increases in global EEG coherence in the 36-44 Hz and 50-64 Hz frequency bands for both subjects. Widely distributed cortical hyper-coherence seems reasonable given the intense synesthesia during ayahuasca experiences. Other findings include increased modal EEG alpha frequency and global power decreases across the cortex in most frequency bands, which concur with the EEG of psychedelics literature. Exploratory analysis revealed the usefulness of analyzing single Hz bins over the standard wide-band analysis. The discovery-oriented naturalistic approach developed for this study resulted in potentially important findings. We believe that finding increases in global gamma coherence during peak psychedelic experiences might contribute to the discussion of binding theory. Also, in light of recent research with gamma coherence during advanced meditative conditions, our findings might further the comparison of shamanic psychedelic practices with meditation.

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Crossref · 10.1080/02791072.2005.10399798

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  • Stuckey et al. (2005) reported a highly integrated brain state following ayahuasca ingestion using quantitative EEG to measure gamma oscillatory power and coherence.

    “Gallimore referenced a small study which employed quantitative electroencephalography to measure changes in gamma oscillatory power and coherence following ayahuasca ingestion and reported a highly integrated brain state (Stuckey et al., 2005).”

    From The therapeutic potentials of Ayahuasca: possible effects against various diseases of civilization (2016) · cites this paper as Stuckey et al., 2005

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Authors
Stuckey, D. E., Lawson, R., & Luna, L. E.
Affiliations
California Institute of Integral Studies (US)
Venue
Journal of Psychoactive Drugs
Publisher
Informa UK Limited
Published
2005-06
Volume
37
Issue
2
Pages
163-178
ISSN
  • 0279-1072 (ISSN-L)
  • 2159-9777
DOI
10.1080/02791072.2005.10399798
OpenAlex
W2049241646
Cited by
43
References
42
Citations by year
2026: 1 · 2025: 2 · 2023: 1 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 2 · 2016: 6 · 2015: 5 · 2014: 1 · 2013: 2 · 2012: 5
FWCI
1.93
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Psychoactive Drugs (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Social Sciences › Psychology › Clinical Psychology › Psychedelics and Drug Studies
  • Social Sciences › Psychology › Social Psychology › Paranormal Experiences and Beliefs
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
ayahuasca, gamma coherence, quantitative EEG, psychedelic experience, synesthesia, alpha power, visual imagery, binding theory
MeSH terms
Animals, Brain Mapping, Electrocardiography, Electrodes, Electroencephalography, Electromyography, Electrooculography, Plant Extracts, Spectrum Analysis, Time Factors, Banisteriopsis

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