1. From the Stroke Unit (H.H., I.D., O.G., C.L., D.L.) and Memory Unit (H.H., F.L., F.P.), Department of Neurology, University of Lille (France), for the Research Group on Cognition in Degenerative and Vascular Disorders. Reprint requests to Didier Leys, MD, Stroke Unit, Department of Neurology, Hôpital Roger Salengro, F-59037 Lille, France.