1. The Framingham Heart Study Framingham Massachusetts USA
2. Department of Neurology Boston University School of Medicine Boston Massachusetts USA
3. Center for Advanced Research in Sleep Medicine Hôpital du Sacré‐Cœur de Montréal, Centre intégré universitaire de santé et de services sociaux du Nord de l’île‐de‐Montréal Montreal Canada
4. Department of Psychology Université du Québec à Montréal Montreal Canada
5. Research Institute of the McGill University Health Centre Montreal Canada
6. Montreal Neurological Institute McGill University Montreal Canada
7. Department of Psychology Université de Montréal Montreal Canada
8. Department of Neurology McGill University, Montreal General Hospital Montreal Canada
9. Department of Psychiatry Université de Montréal Montreal Canada