Diversity of functional connectivity patterns is reduced in propofol‐induced unconsciousness
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چکیده
منابع مشابه
Disruption of thalamic functional connectivity is a neural correlate of dexmedetomidine-induced unconsciousness
Understanding the neural basis of consciousness is fundamental to neuroscience research. Disruptions in cortico-cortical connectivity have been suggested as a primary mechanism of unconsciousness. By using a novel combination of positron emission tomography and functional magnetic resonance imaging, we studied anesthesia-induced unconsciousness and recovery using the α₂-agonist dexmedetomidine....
متن کاملanalyzing patterns of classroom interaction in efl classrooms in iran
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Amygdala functional connectivity is reduced after the cold pressor task.
The amygdala forms a crucial link between central pain and stress systems. Previous research indicates that psychological stress affects amygdala activity, but it is less clear how painful stressors influence subsequent amygdala functional connectivity. In the present study, we used pulsed arterial spin labeling (PASL) to investigate differences in healthy male adults' resting-state amygdala fu...
متن کاملReduced hippocampal functional connectivity in Alzheimer disease.
OBJECTIVE To determine if functional connectivity of the hippocampus is reduced in patients with Alzheimer disease. DESIGN Functional connectivity magnetic resonance imaging was used to investigate coherence in the magnetic resonance signal between the hippocampus and all other regions of the brain. PARTICIPANTS Eight patients with probable Alzheimer disease and 8 healthy volunteers. RESU...
متن کاملTimescales of Intrinsic BOLD Signal Dynamics and Functional Connectivity in Pharmacologic and Neuropathologic States of Unconsciousness
Environmental events are processed on multiple timescales via hierarchical organization of temporal receptive windows (TRWs) in the brain. The dependence of neural timescales and TRWs on altered states of consciousness is unclear. States of reduced consciousness are marked by a shift toward slowing of neural dynamics (<1 Hz) in EEG/ECoG signals. We hypothesize that such prolongation of intrinsi...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2017
ISSN: 1065-9471,1097-0193
DOI: 10.1002/hbm.23708