Table 1.

Between-group comparison of gray matter volume and correlations between gray matter volume and genetic and clinical measures.

Clinical data	Gray matter region	Hemi- sphere	r-value (p-value)	Volumea (SE)		P-value
				HC	DM1
CTG repeat	Middle occipital sulcus and lunatus sulcus	L	−0.633 (0.005)**	1.426 (0.08)	1.154 (0.06)	0.008**
		R	−0.528 (0.024)*	1.297 (0.06)	1.024 (0.07)	0.005**
	Lateral orbital sulcus	R	−0.563 (0.015)*	0.638 (0.04)	0.478 (0.03)	0.002**
	Posterior ramus of the lateral sulcus	R	−0.530 (0.024)*	1.878 (0.05)	1.714 (0.05)	0.018*
Hand grip	Opercular part of the inferior frontal gyrus	L	0.568 (0.014)*	2.863 (0.08)	2.947 (0.16)	0.632
	Triangular part of the inferior frontal gyrus	L	0.731 (0.001)**	2.393 (0.08)	2.249 (0.12)	0.326
	Superior occipital gyrus	L	0.652 (0.003)**	2.484 (0.10)	1.916 (0.08)	<0.001**
	Superior part of the precentral sulcus	L	0.485 (0.041)*	2.147 (0.12)	1.697 (0.08)	0.004**
	Parcentral lobule and sulcus	R	0.491 (0.038)*	2.200 (0.07)	2.002 (0.10)	0.102
	Postcentral gyrus	R	0.493 (0.038)*	3.399 (0.10)	2.985 (0.13)	0.013*
	Anterior transverse temporal gyrus	R	0.589 (0.010)*	0.749 (0.04)	0.623 (0.04)	0.031*
	Inferior segment of the circular sulcus of the insula	R	0.546 (0.019)*	1.912 (0.05)	1.745 (0.06)	0.028*
	Middle occipital sulcus and lunatus sulcus	R	0.471 (0.048)*	1.297 (0.06)	1.024 (0.07)	0.005*
	Caudate	L	0.638 (0.004)**	3.343 (0.09)	3.215 (0.13)	0.423
		R	0.537 (0.022)*	3.525 (0.09)	3.435 (0.14)	0.580
	Amygdala	L	0.477 (0.045)*	1.634 (0.06)	1.374 (0.05)	0.002**
	Accumbens	L	0.511 (0.030)*	0.633 (0.03)	0.452 (0.03)	<0.001**
Disease duration	Brain stem		−0.598 (0.009)**	18.651 (0.43)	17.014 (0.37)	0.007**

^aUnit of volume: ml; * and **indicate p < 0.01 and p < 0.05, respectively.