We know that a specific form of magnetic stimulation to the brain can render people unable to speak. But it can get a lot more specific than that. Brain lesions can get so selective, they can knock ...

WASHINGTON -- Dr. Demetrius Lopes snaked a thin wire with a tiny magnet on its tip into an artery in Paul Kelsey's groin and threaded it all the way up into his brain. Aided by a helmet-shaped magnet ...

For centuries, a prevailing theory in philosophy has asserted that at birth the human mind is a blank slate. More recently the same notion has also held sway in the field of neurobiology, where it is ...