Two brains one head

Split Brain, Undivided Consciousness?

A new paper challenges a decades-old theory in neuroscience: Split brain: divided perception but undivided consciousness. According to the famous work of Roger Sperry and Michael Gazzaniga, “split brain” patients seem to experience a split in consciousness: the left and the right side of their brain can independently become aware of, and respond, to stimuli. Split brain patients are those who underwent surgery to sever the corpus callosum, the nerve tract connecting the two hemispheres of the brain. However, according to Dutch researchers Yair Pinto and colleagues in the new paper, the traditional view is mistaken: there is in fact no evidence of a split consciousness in these patients. ….[READ]