It's been said that a picture is worth a thousand words, but, can a picture prompt a thousand urges? Through the use of functional magnetic resonance imaging (fMRI), a team of researchers have found that drug-related images flashed for just 33 milliseconds to cocaine patients activated the limbic system, a brain network associated with reward and emotion. Dr, Nora Volkow, Director, National Institute on Drug Abuse (NIDA) said, "This is the first evidence that cues outside one's awareness can trigger rapid activation of the circuits driving drug-seeking behavior." For additional information on this study and its implications, click here.