Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)

Department of Psychology, West Virginia University, Morgantown, West Virginia (S.G.K.); Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (L.E.W., D.R., R.A., D.E.S., A.H.L.); and The Skaggs Institute for Chemical Biology and Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California (B.F.C.)