Human consciousness is supported by dynamic complex patterns of brain signal coordination: distinct brain patterns sustain conscious states
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Human consciousness is supported by dynamic complex patterns of brain signal coordination : distinct brain patterns sustain conscious states. / Demertzi, Athena; Tagliazucchi, Enzo; Dehaene, Stanislas; Deco, Gustavo; Barttfeld, Pablo; Raimondo, Federico; Martial, Charlotte; Fernandez-Espejo, Davinia; Rohaut, Benjamin; Voss, Henning; Schiff, Nicholas; Owen, Adrian; Laureys, Steven; Naccache, Lionel; Sitt, Jacobo.
In: Science Advances, Vol. 5, No. 2, eaat7603, 06.02.2019, p. eaat7603.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Human consciousness is supported by dynamic complex patterns of brain signal coordination
T2 - distinct brain patterns sustain conscious states
AU - Demertzi, Athena
AU - Tagliazucchi, Enzo
AU - Dehaene, Stanislas
AU - Deco, Gustavo
AU - Barttfeld, Pablo
AU - Raimondo, Federico
AU - Martial, Charlotte
AU - Fernandez-Espejo, Davinia
AU - Rohaut, Benjamin
AU - Voss, Henning
AU - Schiff, Nicholas
AU - Owen, Adrian
AU - Laureys, Steven
AU - Naccache, Lionel
AU - Sitt, Jacobo
PY - 2019/2/6
Y1 - 2019/2/6
N2 - Adopting the framework of brain dynamics as a cornerstone of human consciousness, we determined whether dynamic signal coordination provides specific and generalizable patterns pertaining to conscious and unconscious states after brain damage. A dynamic pattern of coordinated and anticoordinated functional magnetic resonance imaging signals characterized healthy individuals and minimally conscious patients. The brains of unresponsive patients showed primarily a pattern of low interareal phase coherence mainly mediated by structural connectivity, and had smaller chances to transition between patterns. The complex pattern was further corroborated in patients with covert cognition, who could perform neuroimaging mental imagery tasks, validating this pattern’s implication in consciousness. Anesthesia increased the probability of the less complex pattern to equal levels, validating its implication in unconsciousness. Our results establish that consciousness rests on the brain’s ability to sustain rich brain dynamics and pave the way for determining specific and generalizable fingerprints of conscious and unconscious states.
AB - Adopting the framework of brain dynamics as a cornerstone of human consciousness, we determined whether dynamic signal coordination provides specific and generalizable patterns pertaining to conscious and unconscious states after brain damage. A dynamic pattern of coordinated and anticoordinated functional magnetic resonance imaging signals characterized healthy individuals and minimally conscious patients. The brains of unresponsive patients showed primarily a pattern of low interareal phase coherence mainly mediated by structural connectivity, and had smaller chances to transition between patterns. The complex pattern was further corroborated in patients with covert cognition, who could perform neuroimaging mental imagery tasks, validating this pattern’s implication in consciousness. Anesthesia increased the probability of the less complex pattern to equal levels, validating its implication in unconsciousness. Our results establish that consciousness rests on the brain’s ability to sustain rich brain dynamics and pave the way for determining specific and generalizable fingerprints of conscious and unconscious states.
U2 - 10.1126/sciadv.aat7603
DO - 10.1126/sciadv.aat7603
M3 - Article
VL - 5
SP - eaat7603
JO - Science Advances
JF - Science Advances
SN - 2375-2548
IS - 2
M1 - eaat7603
ER -