General anaesthesia is physiologically distinct from natural sleep
General anaesthesia is physiologically and neurophysiologically distinct from natural sleep, characterized by unique patterns of functional connectivity, spectral properties, and neural network breakdowns.
The retrieved papers provide strong evidence that general anesthesia is distinct from natural sleep. Specifically, papers [1], [3], and [9] highlight differences in functional connectivity, spectral slopes, and neurophysiological markers between anesthetic-induced unconsciousness and various sleep stages. None of the papers refute the claim.
Pierre Boveroux, Audrey Vanhaudenhuyse, Marie‐Aurélie Bruno, Quentin Noirhomme, Séverine Lauwick, André Luxen, Christian Degueldre, Alain Plenevaux, Caroline Schnakers, Christophe Phillips, Jean-François Brichant, Vincent Bonhomme, Pierre Maquet, Michael D. Greicius, Steven Laureys, Mélanie Boly. Breakdown of within- and between-network Resting State Functional Magnetic Resonance Imaging Connectivity during Propofol-induced Loss of Consciousness. 2010. https://doi.org/10.1097/aln.0b013e3181f697f5
Propofol-induced loss of consciousness causes a breakdown of functional connectivity across frontoparietal networks that differs from natural sleep dynamics.
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Janna D. Lendner, Randolph F. Helfrich, Bryce A. Mander, Luis Romundstad, Jack J. Lin, Matthew P. Walker, Pål G. Larsson, Robert T. Knight. An electrophysiological marker of arousal level in humans. 2020. https://doi.org/10.7554/elife.55092
The 1/f spectral slope of the electrophysiological power spectrum distinguishes natural sleep states from propofol-induced general anesthesia.
Minji Lee, Leandro Sanz, Alice Barra, Audrey Wolff, Jaakko O. Nieminen, Mélanie Boly, Mario Rosanova, Silvia Casarotto, Olivier Bodart, Jitka Annen, Aurore Thibaut, Rajanikant Panda, Vincent Bonhomme, Marcello Massimini, Giulio Tononi, Steven Laureys, Olivia Gosseries, Seong–Whan Lee. Quantifying arousal and awareness in altered states of consciousness using interpretable deep learning. 2022. https://doi.org/10.1038/s41467-022-28451-0
Deep learning frameworks using EEG responses can clearly distinguish general anesthesia states from different stages of natural sleep.
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