Large-scale signatures of unconsciousness are consistent with a departure from critical dynamics

  title={Large-scale signatures of unconsciousness are consistent with a departure from critical dynamics},
  author={Enzo Tagliazucchi and Dante R. Chialvo and Michael Siniatchkin and Enrico Amico and Jean-François Brichant and Vincent L Bonhomme and Quentin Noirhomme and Helmut Laufs and Steven Laureys},
  journal={Journal of The Royal Society Interface},
Loss of cortical integration and changes in the dynamics of electrophysiological brain signals characterize the transition from wakefulness towards unconsciousness. In this study, we arrive at a basic model explaining these observations based on the theory of phase transitions in complex systems. We studied the link between spatial and temporal correlations of large-scale brain activity recorded with functional magnetic resonance imaging during wakefulness, propofol-induced sedation and loss of… 

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