1. Institute of Cognitive Science; University of Colorado at Boulder; Boulder Colorado
2. Department of Psychology; University of Georgia; Athens Georgia
3. Department of Psychiatry and Human Behavior; Brown University; Providence Rhode Island
4. Department of Psychiatry and Behavioral Neuroscience; University of Chicago; Chicago Illinois
5. Department of Psychiatry; University of California San Diego; San Diego California
6. Institute for Genomic Medicine; University of California San Diego; La Jolla California
7. Peter Boris Centre for Addictions Research; McMaster University/St. Joseph's Healthcare Hamilton; Hamilton Canada
8. Homewood Research Institute; Homewood Health Centre; Guelph Canada