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Olivier Bodart

5 papers in the library · 777 citations · publishing 2014-2022

Papers

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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)...

General Anesthesia: A Probe to Explore Consciousness

Frontiers in Systems Neuroscience August 14, 2019 Vincent Bonhomme, Cécile Staquet, Javier Montupil et al. 109 citations

General anesthesia reversibly alters consciousness, without shutting down the brain globally. Depending on the anesthetic agent and dose, it may produce different consciousness states including a complete absence of subjective experience (unconsciousness), a conscious experience without perception of the environment (disconnected consciousness, like during dreaming), or episodes of oriented...

Meditation-induced modulation of brain response to transcranial magnetic stimulation.

Brain Stimulation November 1, 2018 Olivier Bodart, Matteo Fecchio, Marcello Massimini et al.

Meditation can be conceptualized as a family of complex emotional and attentional regulatory training regimes developed for various ends, including the cultivation of well-being and emotional balance. Previous studies have demonstrated that meditation may have positive effects on self-awareness, emotion regulation, attention processes, and also structural neuroplasticity [1]. However, the...

Stratification of unresponsive patients by an independently validated index of brain complexity

Annals of Neurology September 22, 2016 Silvia Casarotto, Angela Comanducci, Mario Rosanova et al. 504 citations

OBJECTIVE: Validating objective, brain-based indices of consciousness in behaviorally unresponsive patients represents a challenge due to the impossibility of obtaining independent evidence through subjective reports. Here we address this problem by first validating a promising metric of consciousness-the Perturbational Complexity Index (PCI)-in a benchmark population who could confirm the...

Transcranial magnetic stimulation combined with high-density EEG in altered states of consciousness

Brain Injury August 1, 2014 Martino Napolitani, Olivier Bodart, Paola Canali et al. 44 citations

BACKGROUND: This review discusses the advantages of transcranial magnetic stimulation combined with high-density electroencephalography (TMS-hdEEG) over other current techniques of brain imaging. METHODS AND RESULTS: Its application was reviewed, focusing particularly on disorders of consciousness, in the perspective of recent theories of consciousness. Assessment of non-communicative patients...