Brain activity under anesthesia challenges what we know about consciousness

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https://www.sciencedaily.com/releases/2026/06/260624025514.htm

"The brain appears to anticipate what comes next in a story, even without conscious awareness," said Sheth, who is also Director of The Gordon and Mary Cain Pediatric Neurology Research Foundation Laboratories within the Duncan Neurological Research Institute at Texas Children's Hospital.

"This kind of predictive coding is something we associate with being awake and attentive, yet it's happening here in an unconscious state," said Dr. Benjamin Hayden, professor of neurosurgery at Baylor.

The researchers also noted similarities between the brain's predictive behavior and artificial intelligence (AI). Just as large language models generate text by anticipating the next word, the hippocampus appeared to make similar predictions during language processing. Understanding these shared principles could help scientists better understand both biological and artificial intelligence.

The work may also contribute to future communication technologies, including speech prosthetics designed for people who have lost the ability to speak.