Fig. 3

a Results from receiver operating curve showing the ability of visual short-term memory performance to classify individuals as biomarker positive. Data are shown for the tau in entorhinal cortex, where biomarker positivity was defined as 3 standard deviations above the non-carrier mean level. According to this system of classification, there were 23 amyloid positive subjects (29 negative), 14 ENT tau positive subjects (38 negative), and 7 IT tau positive subjects (45 negative). Areas under the curve (AUC) are shown for each analysis in b. b Summary of VSTM performance in ROC analysis across three biomarker types. Means areas under the curve are shown with standard error. Data from the VSTM shape only (SO) condition were superior in classifying individuals as positive for all three biomarkers