Figure 5.

Significance maps showing correlations of cortical thickness (CT) with VIQ-regressed-on-PIQ score, CT with PIQ-regressed-on-VIQ score, and CT with VIQ-PIQ difference score. Anterior and posterior views of the brain comparing findings using the residual scores and findings using the standardized (VIQ-PIQ)_z score. This comparison demonstrates the validity of both approaches, as they show similar results. Findings for the difference score analysis are included because the difference score is widely used in clinical practice. Left, Maps showing correlations of CT with VIQ-regressed-on-PIQ score. Middle, Maps showing correlations of CT with PIQ-regressed-on-VIQ score. Right, Maps showing correlations of CT with (VIQ-PIQ)_z difference score. Top, Maps of sample 1, N = 83. Bottom, Maps of sample 2, N = 58.