Who's in Charge?

Gazzaniga (psychology, Univ. of California, Santa Barbara; Human: The Science Behind What Makes Us Unique) takes us inside the workings of the human brain, exploring its known neurological functions and their contributions to the human sense of the conscious self and consequent behaviors. To what degree are we hardwired for behavior? What of genetics? How does human brain function differ from that of other members of the animal world? He highlights amazing research into split-brain cerebral functions and reveals a brain that can be localized and simultaneously diffuse in function. So do biological processes determine our behavior, trumping free will and letting us off the hook for our actions? Gazzaniga argues convincingly that they do not—that the influence of human social interaction on behavior disproves this deterministic theory. We are free agents, capable of overriding impulses, making conscious decisions, and regulating our behavior accordingly within social and ethical constructs.