Anesthesia blocks sensation by cutting off communication within the cortex
General anesthesia evokes a dual mystery: How does it disrupt consciousness, including sensory perception, and what might that say about the nature of consciousness. A new study led by researchers at The Picower Institute for Learning and Memory at MIT provides evidence in animals that consciousness depends on properly synchronized communication across the brain’s cortex and that the anesthetic drug propofol cancels sensory processing by cutting it off.
In the Journal of Cognitive Neuroscience, researchers report clear evidence that in anesthetized animals, ...





