Large-scale information flow in conscious and unconscious states: an ECoG study in monkeys.

ABSTRACT: Consciousness is an emergent property of the complex brain network. In order to understand how consciousness is constructed, neural interactions within this network must be elucidated. Previous studies have shown that specific neural interactions between the thalamus and frontoparietal cortices; frontal and parietal cortices; and parietal and temporal cortices are correlated with levels of consciousness. However, due to technical limitations, the network underlying consciousness has not been investigated in terms of large-scale interactions with high temporal and spectral resolution. In this study, we recorded neural activity with dense electrocorticogram (ECoG) arrays and used the spectral Granger causality to generate a more comprehensive network that relates to consciousness in monkeys.

SUBMITTER: Yanagawa T 

PROVIDER: S-EPMC3829858 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature