Table 4.

Volumetric comparisons in the selected ROIs between the PIGD subtype, TD subtype, indeterminate patients and HCs.

Region	Estimated Mean controls (n = 28)	Estimated Mean PIGD (n = 30)	Estimated Mean indeterminate (n = 45)	Estimated Mean TD (n = 30)	Group (healthy controls, PIGD, indeterminate, and TD subtypes) F value (p-value)
Cerebellum	50768 ± 1556	49444 ± 1457	50709 ± 1186	49617 ± 1512	0.25 (0.86)
Thalamus	6330 ± 129	6447 ± 121	6376 ± 99	6647 ± 126	1.24 (0.29)
Caudate	3682 ± 95	3290 ± 89	3364 ± 72	3413 ± 92	3.50 (0.02)
Putamen	4960 ± 109	4487 ± 102	4498 ± 83	4735 ± 106	5.05 (0.002)
Globus pallidus	1415 ± 35	1396 ± 33	1419 ± 27	1496 ± 34	1.64 (0.19)
Hippocampus	3808 ± 65	3722 ± 80	3907 ± 65	3841 ± 83	1.09 (0.36)
Amygdala	1684 ± 49	1391 ± 46	1529 ± 37	1551 ± 48	6.63 (0.0003)
Nucleus accumbens	589 ± 20	540 ± 19	556 ± 15	560 ± 20	1.13 (0.34)