Long-range temporal correlations in the brain distinguish conscious wakefulness from induced unconsciousness.

ABSTRACT: Rhythmic neuronal synchronization across large-scale networks is thought to play a key role in the regulation of conscious states. Changes in neuronal oscillation amplitude across states of consciousness have been widely reported, but little is known about possible changes in the temporal dynamics of these oscillations. The temporal structure of brain oscillations may provide novel insights into the neural mechanisms underlying consciousness. To address this question, we examined long-range temporal correlations (LRTC) of EEG oscillation amplitudes recorded during both wakefulness and anesthetic-induced unconsciousness. Importantly, the time-varying EEG oscillation envelopes were assessed over the course of a sevoflurane sedation protocol during which the participants alternated between st

SUBMITTER: Thiery T 

PROVIDER: S-EPMC6545227 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature