(not in love with the ending)
According to [neuroscientist Michael] Gazzaniga, once the brain takes in an event, “there is a special device in the left brain, which I call the Interpreter… The Interpreter, the last device in the information chain in our brain, reconstructs the brain events.” It is, he says, the brain’s storyteller, collecting inputs and making sense of them in the grand scheme of things. It is why we experience unified consciousness. […] He says the Interpreter also creates the impression that our brain is working at our behest, and “not the other way around”.
Support for the existence of the Interpreter was demonstrated in patients who had their corpus callosum, the major connection between the two hemispheres, cut to prevent the spread of epileptic seizures. Gazzaniga experimented by sharing instructions only with the right hemisphere of several patients, and in each case the left-hemisphere Interpreter made up stories to explain their resulting actions. In one case he showed the word “walk” and the patient did as instructed and started walking. The left brain, which was unaware of the instruction, was at a loss for an explanation, yet the Interpreter cooked one up anyway. When asked why he was walking, the patient said “I wanted to go get a Coke.” Such explanations are offered as absolute truths, even when they are transparently-even sometimes comically-false.”
John Geiger, The Angel Effect: We Are Never Alone, p. 100-101