Ribbon diagram of the human Glo1 gene. Researchers at the Center for Genetics, Genomics, and Epigenetics of Substance Use Disorders in Outbred Rats studied Glo1 in heterogeneous stock (HS) rats as a model for understanding why some people are more susceptible to substance use disorders than others.

The human amygdala (pictured in orange) plays an important role in addiction. Researchers at the Center for Genetics, Genomics, and Epigenetics of Substance Use Disorders in Outbred Rats study genes in the amygdalas of heterogeneous stock (HS) rats as a model for understanding why some people are more susceptible to substance use disorders than others.