Quantifying convergence between k-means solution and independent anatomically defined thalamic seeds. a, FSL anatomic atlas of the thalamus derived from diffusion-weighted imaging. b, Relationship between whole-brain maps of group differences derived from FSL's atlas and the k = 2 k-means solution, indicating a strong correspondence between the “anterior” cluster and executive thalamic nuclei. c, Thalamic a priori anatomically defined prefrontal-projecting thalamic seed used to compute between-group differences, which matches the anterior k = 2 effect. d, Thalamic a priori anatomically defined parietal-projecting thalamic seed used to compute between-group differences, which matches the posterior k = 2 effect.