Fig. 2
Association between Aß1-42 concentration (pg/ml) and neuropsychological performance per group (grey zone, probable AD, low Aß1-42). When comparing patients in the grey zone (blue) and those with low Aß1-42 (green) we observe an overlap both between the relative performance (z-scores in relation to performance of all participants) and patterns of association of Aß1-42 and cognitive performance. In contrast, patients with probable AD (purple) show lower scores in cognitive assessment