Data Supplement

Two tables.

Files in this Data Supplement:

• E1 - Table (E)T-1: Talairach coordinates of local maxima showing a main effect as function of WM load or a significant difference between FTD and AD. Since there was both a difference in age and reaction time (RT) between AD and FTD, the analyses were repeated using age and RT as covariates to test whether the group differences would persist: regions that still showed a significant difference between AD and FTD in this additional analysis are marked with ‘*’; Table (E)T-2: Talairach coordinates of local maxima showing a linear signal increase as function of WM load in the FTD and the AD group, and of regions with a significant difference between the groups. Since there was both a difference in age and reaction time (RT) between AD and FTD, the analyses were repeated using age and RT as covariates to test whether the group differences would persist: regions that still showed a significant difference between AD and FTD in this analysis are marked with ‘*’; Word document.