PLoS One
2026
Kleber Monteiro Pinto, Thaise G. L. de O. Toutain, Hugo Saba et al.
Mediumistic trance, studied as a cultural phenomenon, is considered an altered state of consciousness with dissociative and non-pathological characteristics. Studies on the effect of this trance state on linguistic performance using electroencephalography (EEG) are still scarce. We investigated the brain electrical activity of mediums using quantitative EEG (qEEG) during writing in waking and...
bioRxiv (Cold Spring Harbor Laboratory)
December 11, 2025
Caroline L. Alves, Fernanda Palhano-Fontes, Thaise G. L. de O. Toutain et al.
Abstract Ayahuasca profoundly alters conscious experience, yet robust, time-resolved EEG markers of its network-level effects remain limited. We combined machine learning with complex-network analysis to quantify how functional connectivity reorganizes across time and hemispheres in resting-state EEG from a randomized, double-blind, placebo-controlled trial including three 5-min sessions:...
Journal of Physics: Complexity
January 22, 2024
Caroline L. Alves, Manuel Ciba, Thaise G. L. de O. Toutain et al.
5 citations
There is a growing interest in the medical use of psychedelic substances, as preliminary studies using them for psychiatric disorders have shown positive results. In particular, one of these substances is N, N-dimethyltryptamine (DMT), an agonist serotonergic psychedelic that can induce profound alterations in the state of consciousness. In this work, we use an exploratory tool to reveal...
medRxiv
June 16, 2022
Caroline L. Alves, Thaise G. L. de O. Toutain, Joel Augusto Moura Porto et al.
preprint
There is a growing interest in the medical use of psychedelic substances as preliminary studies using them for psychiatric disorders have shown positive results. In particularly, one of these substances is N,N-dimethyltryptamine (DMT) an agonist serotonergic psychedelic that can induce profound alterations in state of consciousness. In this work, we propose a computational method based on...