Factor loadings from an exploratory factor analysis for a 3-, 4- and 5-factor model of (Top) the behavioral performance measures from the 12 cognitive tasks; and (bottom) the correlations between z-statistics of positively activated areas that topographically overlapped across task-pairs calculated from the group-level maps.

Bolded values indicate factor-membership. Color shaded areas indicate cognitive domain membership by task based on previous literature: memory retrieval, reasoning speed and vocabulary.