Figure 4.

Covariate effect estimates for sex, age, 2-back performance accuracy, and FIQ. A, Standardized regression coefficients (β values) obtained from multiple regression of task-related activation on sex, age, 2-back performance accuracy, and FIQ in Mx (Neale et al., 2002). Positive effects (i.e., greater activation in males, in older participants, and in participants who performed better on the n-back task or with higher FIQ) are represented by hot colors and negative effects (i.e., greater activation in females, in younger participants, and in participants who performed worse on the n-back task or with lower FIQ) are represented by cold colors. B, Height-thresholded (p < 0.05) and cluster-thresholded (>147 voxels) p value maps corresponding to the regression coefficient maps of sex, age, 2-back performance accuracy, and FIQ.