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Human consciousness is supported by dynamic complex patterns of brain signal coordination

机译:人的意识得到大脑信号协调动态复杂模式的支持

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摘要

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.
机译:通过将大脑动力学框架作为人类意识的基石,我们确定了动态信号协调是否提供了与脑损伤后有意识和无意识状态有关的特定且可概括的模式。协调和反协调功能磁共振成像信号的动态模式表征了健康个体和弱视患者。无反应的患者的大脑主要表现出区域间相干性低的模式,主要由结构连通性介导,并且在模式之间过渡的机会较小。这种复杂的模式在具有隐蔽认知的患者中得到了进一步证实,这些患者可以执行神经成像的心理成像任务,从而验证了这种模式对意识的影响。麻醉使不太复杂的模式达到相同水平的可能性增加,从而验证了其对潜意识的暗示。我们的研究结果表明,意识取决于大脑维持丰富的脑部动力学并为确定有意识和无意识状态的特定且可概括的指纹铺平道路的能力。

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