Characteristics of patients included in the behavioral study.

All cells contain the mean and its standard error (in brackets). The column on the right indicates the average number of task sessions completed by the patients. The p values are from two-sample t tests. CTL, healthy controls; AD, Alzheimer's disease; bvFTD, behavioral variant of Fronto-Temporal Dementia; MMSE, Mini-Mental State Examination; FAB, Frontal Assessment Battery. FCSRT, Free and Cued Selective Reminding Test (total number of items retrieved during free recall).