Breathwork-induced psychedelic experiences modulate neural dynamics
Autor
Lewis-Healey, Evan
Tagliazucchi, Enzo
Canales-Johnson, Andrés F.
Bekinschtein, Tristan A.
Fecha
2024Resumen
Breathwork is an understudied school of practices involving intentional respiratory modulation to induce an altered state of consciousness (ASC). We simultaneously investigate the phenomenological and neural dynamics of breathwork by combining Temporal Experience Tracing, a quantitative methodology that preserves the temporal dynamics of subjective experience, with low-density portable EEG devices. Fourteen novice participants completed a course of up to 28 breathwork sessions—of 20, 40, or 60 min—in 28 days, yielding a neurophenomenological dataset of 301 breathwork sessions. Using hypothesis-driven and data-driven approaches, we found that “psychedelic-like” subjective experiences were associated with increased neural Lempel-Ziv complexity during breathwork. Exploratory analyses showed that the aperiodic exponent of the power spectral density—but not oscillatory alpha power—yielded similar neurophenomenological associations. Non-linear neural features, like complexity and the aperiodic exponent, neurally map both a multidimensional data-driven composite of positive experiences, and hypothesis-driven aspects of psychedelic-like experience states such as high bliss.
Fuente
Cerebral Cortex, 34(8), bhae347Link de Acceso
Click aquí para ver el documentoIdentificador DOI
doi.org/10.1093/cercor/bhae347Colecciones
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