[1] Heptares Therapeut Ltd, Cambridge, England
[2] Univ Cambridge, Dept Psychiat, Brain Mapping Unit, Cambridge, England
[3] Univ Melbourne, Florey Inst Neurosci & Mental Hlth, Melbourne, Vic, Australia
[4] Cambridge Cognit, Cambridge, England
[5] IRCCS Ist Ctr San Giovanni Dio Fatebenefratelli, Lab Alzheimers Neuroimaging & Epidemiol, Brescia, Italy
[6] Univ Roma La Sapienza, Dept Physiol & Pharmacol, Rome, Italy
[7] IRCCS San Raffaele Pisana Rome, Rome, Italy
[8] Mario Negri Inst Pharmacol Res, Dept Neurosci, Milan, Italy
[9] Univ Barcelona, Fac Med, Dept Psychiat & Clin Psychobiol, Barcelona, Spain
[10] IDIBAPS, Barcelona, Spain
[11] Aix Marseille Univ, INSERM, INS UMR S 1106, Marseille, France
[12] APHM Hop Timone Adultes, Serv Neurol & Neuropsychol, Marseille, France
[13] Univ Perugia, Osped Santa Maria Misericordia, Ctr Disturbi Memoria, Clin Neurol, Perugia, Italy
[14] Univ Duisburg Essen, Fac Med, LVR Hosp Essen, Dept Psychiat & Psychotherapy, Essen, Germany
[15] Univ Genoa, Neurol Clin, Dept Neurosci DINOGMI, Genoa, Italy
[16] Univ Leipzig, Dept Psychiat & Psychotherapy, Leipzig, Germany
[17] Univ Trento, Ctr Mind Brain Sci, Trento, Italy
[18] Vrije Univ Amsterdam Med Ctr, Alzheimer Ctr, Dept Neurol, Amsterdam, Netherlands
[19] Catholic Univ, Policlin A Gemelli Fdn, Inst Neurol, Dept Gerontol Neurosci & Orthoped, Rome, Italy
[20] Hosp Clin Barcelona, Alzheimers Dis Unit & Other Cognit Disorders Unit, Barcelona, Spain
[21] INSERM, Imagerie Cerebrale & Handicaps Neurol UMR 825, Toulouse, France
[22] SDN Ist Ric Diag & Nucl, Naples, Italy
[23] Aristotle Univ Thessaloniki, G Papanikolaou Hosp, Med Sch, Neurol Clin 3, Thessaloniki, Greece
[24] Georg August Univ, Univ Med Ctr UMG, Dept Psychiat & Psychotherapy, Gottingen, Germany
[25] GlaxoSmithKline R&D, Neurosci Therapeut Area, Stevenage, Herts, England
[26] Univ Lille, INSERM, CHU Lille, U1171 Degenerat & Vasc Cognit Disorders, Lille, France
[27] Aix Marseille Univ, UMR CNRS 6193, Mediterranean Inst Cognit Neurosci INCM, Marseille, France
[28] Univ Hosp, Memory Clin & LANVIE Lab Neuroimaging Aging, Geneva, Switzerland
[29] Univ Geneva, Geneva, Switzerland