"We’re on the verge of profound changes in our ability to manipulate the brain," says Paul Root Wolpe, a bioethicist at the University of Pennsylvania. He isn’t kidding. The dawning age of neuroscience promises not just new treatments for Alzheimer’s and other brain diseases but enhancements to improve memory, boost intellectual acumen, and fine-tune our emotional responses. "The next two decades will be the golden age of neuroscience," declares Jonathan Moreno, a bioethicist at the University of Virginia. "We’re on the threshold of the kind of rapid growth of information in neuroscience that was true of genetics 15 years ago."












