From the July 2011 magazine.

July 2011: Alcoholism At Large

Researchers link alcoholism and impulsivity

In a new brain imaging study on alcoholism and impulse control, alcoholics scored high on measures of impulsivity, were less able to delay gratification, and were less able to inhibit responses, according to Eric D. Claus, first author of the study.

The study was designed to examine the ability to delay immediate gratification and instead choose rewards in the future.

The study showed that alcoholism was associated with a greater tendency to discount future rewards suggesting that alcoholics may be more...