General anesthesia and human brain connectivity

AG Hudetz - Brain connectivity, 2012 - liebertpub.com
General anesthesia consists of amnesia, hypnosis, analgesia, and areflexia. Of these, the
mechanism of hypnosis, or loss of consciousness, has been the most elusive, yet a …

[HTML][HTML] The perception and attitude toward noise and music in the operating room: a systematic review

VX Fu, P Oomens, N Merkus, J Jeekel - journal of surgical research, 2021 - Elsevier
Background Environmental noise pollution is regarded as a general stressor. Noise levels
frequently exceed recommended noise levels by the World Health Organization in hospitals …

Breakdown of within-and between-network resting state functional magnetic resonance imaging connectivity during propofol-induced loss of consciousness

P Boveroux, A Vanhaudenhuyse, MA Bruno… - The Journal of the …, 2010 - pubs.asahq.org
Background Mechanisms of anesthesia-induced loss of consciousness remain poorly
understood. Resting-state functional magnetic resonance imaging allows investigating …

Cortical and subcortical connectivity changes during decreasing levels of consciousness in humans: a functional magnetic resonance imaging study using propofol

RN Mhuircheartaigh, D Rosenorn-Lanng… - Journal of …, 2010 - Soc Neuroscience
While ubiquitous, pharmacological manipulation of consciousness remains poorly defined
and incompletely understood. This retards anesthetic drug development, confounds …

Cortical hypersynchrony predicts breakdown of sensory processing during loss of consciousness

GG Supp, M Siegel, JF Hipp, AK Engel - Current biology, 2011 - cell.com
Intrinsic cortical dynamics modulates the processing of sensory information and therefore
may be critical for conscious perception [1–3]. We tested this hypothesis by …

The effect of different anesthetics on neurovascular coupling

MA Franceschini, H Radhakrishnan, K Thakur, W Wu… - Neuroimage, 2010 - Elsevier
To date, the majority of neurovascular coupling studies focused on the thalamic afferents'
activity in layer IV and the corresponding large spiking activity as responsible for functional …

Posterior cingulate cortex-related co-activation patterns: a resting state FMRI study in propofol-induced loss of consciousness

E Amico, F Gomez, C Di Perri, A Vanhaudenhuyse… - PloS one, 2014 - journals.plos.org
Background Recent studies have been shown that functional connectivity of cerebral areas
is not a static phenomenon, but exhibits spontaneous fluctuations over time. There is …

Preferential effect of isoflurane on top-down vs. bottom-up pathways in sensory cortex

A Raz, SM Grady, BM Krause, DJ Uhlrich… - Frontiers in systems …, 2014 - frontiersin.org
The mechanism of loss of consciousness (LOC) under anesthesia is unknown. Because
consciousness depends on activity in the cortico-thalamic network, anesthetic actions on this …

Cortical processing of complex auditory stimuli during alterations of consciousness with the general anesthetic propofol

G Plourde, P Belin, D Chartrand, P Fiset… - The Journal of the …, 2006 - pubs.asahq.org
Background The extent to which complex auditory stimuli are processed and differentiated
during general anesthesia is unknown. The authors used blood oxygenation level …

Energetics of neuronal signaling and fMRI activity

NJG Maandag, D Coman… - Proceedings of the …, 2007 - National Acad Sciences
Energetics of resting and evoked fMRI signals were related to localized ensemble firing
rates (ν) measured by electrophysiology in rats. Two different unstimulated, or baseline …