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Leandro R. D. Sanz

5 papers in the library · 142 citations · publishing 2019-2024

Papers

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Phenomenology of auto-induced cognitive trance using text mining: a prospective and exploratory group study.

Neuroscience of Consciousness 2024 Audrey Vanhaudenhuyse, Marie-Carmen Castillo, Charlotte Martial et al. 7 citations

Auto-induced cognitive trance (AICT) is a modified state of consciousness derived from shamanic tradition that can be practised by individuals after specific training. The aim of this work was to characterize the phenomenological experiences of AICT, using text mining analysis. Free recalls of subjective experiences were audio-recorded in 27 participants after five pseudo-randomized...

Method for quantifying arousal and consciousness in healthy states and severe brain injury via EEG-based measures of corticothalamic physiology.

Journal of neuroscience methods October 1, 2023 S Assadzadeh, Jitka Annen, Leandro R. D. Sanz et al.

Characterization of normal arousal states has been achieved by fitting predictions of corticothalamic neural field theory (NFT) to electroencephalographic (EEG) spectra to yield relevant physiological parameters. A prior fitting method is extended to distinguish conscious and unconscious states in healthy and brain injured subjects by identifying additional parameters and clusters in parameter...

Quantifying arousal and awareness in altered states of consciousness using interpretable deep learning

Nature Communications February 25, 2022 Minji Lee, Leandro R. D. Sanz, Alice Barra et al. 120 citations

Consciousness can be defined by two components: arousal (wakefulness) and awareness (subjective experience). However, neurophysiological consciousness metrics able to disentangle between these components have not been reported. Here, we propose an explainable consciousness indicator (ECI) using deep learning to disentangle the components of consciousness. We employ electroencephalographic (EEG)...

Mapping the functional brain state of a world champion freediver in static dry apnea

Brain Structure and Function 2021 Jitka Annen, Rajanikant Panda, Charlotte Martial et al. 15 citations

peer reviewedVoluntary apnea showcases extreme human adaptability in trained individuals like professional free divers. We evaluated the psychological and physiological adaptation and the functional cerebral changes using electroencephalography (EEG) and functional Magnetic Resonance Imaging (fMRI) to 6.5 min of dry static apnea performed by a world champion free diver. Compared to resting...

Behavioural and brain responses in cognitive trance: A TMS-EEG case study.

Clinical Neurophysiology November 27, 2019 Olivia Gosseries, Matteo Fecchio, Audrey Wolff et al.

https://doi.org/10.1016/j.clinph.2019.11.011 1388-2457/ 2019 The Authors. Published by Elsevier B.V. on behalf of In This is an open access article under the CC BY-NC-ND license (http://creativ Cognitive trance is defined as a volitional, purposeful and selfinduced modified state of consciousness (inherited from shamanic traditional practice), characterized by lucid but narrowed awareness of...