MAPT and early-onset autosomal dominant Alzheimer disease: Since decreases in delayed recall seem certain in CU elderly individuals, while deficits in recognition are disputed even in preclinical Alzheimer’s disease, and delayed recall performance has been found to associate with tau load in anterior MTL of CU elderly, we hypothesized that delayed recall deficits would already be affected by the accumulation of tau in early PET-Braak stages, while recognition reductions would be observed at a later PET-Braak stage.