: Alexander describes his brain’s neocortex as "completely non-functional" during the coma, a detail he uses to argue that his vivid experiences could not have been hallucinations produced by the brain.
Dr. Eben Alexander’s Proof of Heaven: A Neurosurgeon's Journey into the Afterlife (2012) is a memoir that attempts to bridge the gap between materialist science and spiritual belief through the lens of a near-death experience (NDE). Proof of Heaven
: A murky, primitive state of initial consciousness . : Alexander describes his brain’s neocortex as "completely
: A vibrant, idyllic landscape where he was guided by a young woman on a butterfly wing and received the message: "You are loved and cherished, dearly, forever". Proof of Heaven