Fig. 1From: The age-related effect on cognitive performance in cognitively healthy elderly is mainly caused by underlying AD pathology or cerebrovascular lesions: implications for cutoffs regarding cognitive impairmentPercent change in test cutoffs (1.5 SD from mean) between the total population and those without measurable brain pathologies. All test cutoffs were significantly stricter in cohort E (no measurable pathologies) compared to cohort A (whole population) except for ADAS naming (Table 4). Percent changes were calculated by dividing cutoffs for cohort E with cutoffs for cohort ABack to article page