In states like deep sleep or under anesthesia, what do studies reveal about the brain activity related to lost conscious report?

Answer

A collapse in the long-range communication between distant brain regions

Anesthesia and deep sleep disrupt the necessary network effect—the ability for distant specialized areas to communicate globally—even if local processing remains active.

In states like deep sleep or under anesthesia, what do studies reveal about the brain activity related to lost conscious report?
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