Why do we sleep? Why do we dream? How conscious are we during sleep and dreams? Neurologist Mélanie Boly explains the important ongoing studies at The Center for Sleep and Consciousness at University of Wisconsin. Watch the excerpt above or see the full program of The Whispering Mind: The Enduring Conundrum of Consciousness.
Mystery of Human Consciousness Illuminated: Primitive Consciousness Emerges First as You Awaken from Anesthesia
ScienceDaily (Apr. 4, 2012) — Awakening from anesthesia is often associated with an initial phase of delirious struggle before the full restoration of awareness and orientation to one’s surroundings. Scientists now know why this may occur: primitive consciousness emerges first. Using brain imaging techniques in healthy volunteers, a team of scientists led by Adjunct Professor Harry Scheinin, M.D. from the University of Turku, Turku, Finland in collaboration with investigators from the University of California, Irvine, USA, have now imaged the process of returning consciousness after general anesthesia. The emergence of consciousness was found to be associated with activations of deep, primitive brain structures rather than the evolutionary younger neocortex. These results may represent an important step forward in the scientific explanation of human consciousness.