High‐Alcohol Preferring Mice Are More Impulsive Than Low‐Alcohol Preferring Mice as Measured in the Delay Discounting Task

Abstract

Alcohol-naïve outbred mice selected for high-alcohol drinking were more impulsive with saccharin reinforcers than low-alcohol drinkers. These data are consistent with results seen using inbred strain descendents of high-alcohol drinking and low-alcohol drinking rat lines, and suggest that impulsivity is a heritable difference that precedes alcoholism.