Table I.

Thicker cortex predicts higher WCST accuracy (after controlling for age, n = 129): most significant ROIs from Figure 2 (P < 0.005 across > 30 mm²)

ROI	Gyrus	BA	Anatomical definition	Talairach coordinates	Peak P‐value	ROI size (mm2) on standard surface	Mean ROI size (mm2) at P < 0.005
Left SPG	Superior parietal	7	Somatosensory association cortex	−25, −56, 47	0.00008	128.4	170 ± 59
Right MFG	Rostral middle frontal	9/46	Dorsolateral PFC	43, 27, 22	0.001	91.6	103 ± 29
Right PCG	Dorsal postcentral	2	Primary somatosensory cortex	9, −34, 71	0.0002	83.6	61 ± 13
Right SPG	Superior parietal	5	Somatosensory association cortex	17, −38, 63	0.0002	81.6	98 ± 30
Left MFG	Caudal middle frontal	8/9	Dorsolateral PFC	−27, 9, 46	0.002	71.4	83 ± 26
Right pre‐CG	Pre‐central, lateral	4/6	Primary motor/premotor cortex	38, −5, 53	0.002	43.7	45 ± 14
Right IFG	Inferior frontal, pars opercularis	44	Ventrolateral PFC	42, 15, 7	0.0002	40.6	49 ± 12
Left PCG	Dorsal postcentral	2	Primary somatosensory cortex	−13, −32, 71	0.001	36.6	33 ± 8