We observed a significant positive relationship between impulsivity scores and reported craving. A negative correlation was observed between the impulsivity score and activity in the posterior cingulate cortex (PCC).
…This is the first study on this topic, and so, results will need to be replicated in both licit and illicit drug abusers.
Front. Psychiatry, 16 July 2013 | doi: 10.3389/fpsyt.2013.00067