A combination of the stimulant drug methylphenidate — known as Ritalin — with a process known as cognitive-behavioral rehabilitation is showing promise as a way to help people who suffer from persistent cognitive problems following traumatic brain injury (TBI), according to a new study. Researchers at Indiana University School of Medicine...compared the effectiveness of two forms of cognitive therapy with and without the use of methylphenidate, a drug used to treat attention-deficit/hyperactivity disorder.