Asymmetry in the Nucleus Accumbens May Be Linked with Substance Dependence
A NIDA-funded study found that people with some types of substance dependence exhibited less rightward asymmetry of the nucleus accumbens than did people without dependence. Additionally it found that reduced asymmetry in the nucleus accumbens was observed specifically in people with alcohol or nicotine dependence, but not in those with cocaine, methamphetamine, or cannabis dependence.