Research 
          Interest: 
          My research focuses on understanding individual differences in liability 
          to substance abuse and related psychopathology. I am the principal investigator 
          of the family study component of our Drug Abuse Research Center. The 
          Center for Antisocial Drug Dependence: Genetics is a collaborative NIDA-funded 
          Center of the Institute for Behavioral Genetics and the Addiction Research 
          Treatment Service of the University of 
          Colorado Health Sciences Center.