Alzheimers Dement

Introduction:Identifying clinical measures that track disease in the earliest stages of frontotemporal lobar degeneration (FTLD) is important for clinical trials. Familial FTLD provides a unique paradigm to study early FTLD. Executive dysfunction is a clinically relevant hallmark of FTLD and may be a marker of disease progression.Methods:Ninety-three mutation carriers with no symptoms or minimal/questionable symptoms (MAPT, n = 31; GRN,n = 28; C9orf72,n = 34; Clinical Dementia Rating scale plus NACC FTLD Module