Covariate effects reflecting brain activation correlated with executive ability in the reading task. Regions in red have a positive relation with ability (i.e., greater activation, greater ability), and regions in cyan have a negative relation with ability (i.e., less activation, greater ability). All depicted effects passed voxel-wise FDR correction (p < 0.05) for multiple comparisons (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article).