Rapid fragmentation of neuronal networks at the onset of propofol-induced unconsciousness

LD Lewis, VS Weiner, EA Mukamel… - Proceedings of the …, 2012 - National Acad Sciences
The neurophysiological mechanisms by which anesthetic drugs cause loss of
consciousness are poorly understood. Anesthetic actions at the molecular, cellular, and …

Stable and dynamic cortical electrophysiology of induction and emergence with propofol anesthesia

JD Breshears, JL Roland, M Sharma… - Proceedings of the …, 2010 - National Acad Sciences
The mechanism (s) by which anesthetics reversibly suppress consciousness are
incompletely understood. Previous functional imaging studies demonstrated dynamic …

Connectivity changes underlying spectral EEG changes during propofol-induced loss of consciousness

M Boly, R Moran, M Murphy, P Boveroux… - Journal of …, 2012 - Soc Neuroscience
The mechanisms underlying anesthesia-induced loss of consciousness remain a matter of
debate. Recent electrophysiological reports suggest that while initial propofol infusion …

Dynamic repertoire of intrinsic brain states is reduced in propofol-induced unconsciousness

AG Hudetz, X Liu, S Pillay - Brain connectivity, 2015 - liebertpub.com
The richness of conscious experience is thought to scale with the size of the repertoire of
causal brain states, and it may be diminished in anesthesia. We estimated the state …

Propofol-induced loss of consciousness is associated with a decrease in thalamocortical connectivity in humans

M Malekmohammadi, CM Price, AE Hudson… - Brain, 2019 - academic.oup.com
Although the molecular effects of many anaesthetics have been well characterized, a
network-level explanation for how these changes lead to loss of consciousness remains …

Thalamocortical synchronization during induction and emergence from propofol-induced unconsciousness

FJ Flores, KE Hartnack, AB Fath… - Proceedings of the …, 2017 - National Acad Sciences
General anesthesia (GA) is a reversible drug-induced state of altered arousal required for
more than 60,000 surgical procedures each day in the United States alone. Sedation and …

Spatiotemporal reconfiguration of large-scale brain functional networks during propofol-induced loss of consciousness

MS Schröter, VI Spoormaker, A Schorer… - Journal of …, 2012 - Soc Neuroscience
Applying graph theoretical analysis of spontaneous BOLD fluctuations in functional
magnetic resonance imaging (fMRI), we investigated whole-brain functional connectivity of …

Propofol disrupts alpha dynamics in functionally distinct thalamocortical networks during loss of consciousness

VS Weiner, DW Zhou, P Kahali… - Proceedings of the …, 2023 - National Acad Sciences
During propofol-induced general anesthesia, alpha rhythms measured using
electroencephalography undergo a striking shift from posterior to anterior, termed …

Disruption of corticocortical information transfer during ketamine anesthesia in the primate brain

KE Schroeder, ZT Irwin, M Gaidica, JN Bentley… - Neuroimage, 2016 - Elsevier
The neural mechanisms of anesthetic-induced unconsciousness have yet to be fully
elucidated, in part because of the diverse molecular targets of anesthetic agents. We …

[HTML][HTML] General anesthesia globally synchronizes activity selectively in layer 5 cortical pyramidal neurons

A Bharioke, M Munz, A Brignall, G Kosche, MF Eizinger… - Neuron, 2022 - cell.com
General anesthetics induce loss of consciousness, a global change in behavior. However, a
corresponding global change in activity in the context of defined cortical cell types has not …