Joseph Plaksin, Stephen T. Moelter, Deepti Vaswani, D. Weintraub, J. Karlawish, A. Siderowf, J.Duda, “Catechol-O-Methyl Transferase Val158Met Polymorphism, Executive Function, and Impulsivity in Parkinson’s Disease” at the 23rd Annual Convention, Association for Psychological Science, Washington, DC, May 29, 2011.