Fig. 3
From: Longitudinal change in ATN biomarkers in cognitively normal individuals
Changes in amyloid status. Scatterplot showing baseline and follow-up BPND values. Different colors represent individuals with a negative amyloid PET scan at baseline and follow-up (negative-negative), a positive scan at baseline and a negative scan at follow-up (positive-negative), a negative scan at baseline and a positive scan at follow-up (negative-positive), and a positive scan at baseline and follow-up (positive-positive), respectively. The dashed lines represent a division in low, grey zone, and high amyloid burden and is based on a previous study by our group [6], with thresholds of 0.19 and 0.29 BPND. BPND, binding potential