Table 9.

The ROI data and results of the corresponding statistical test for the fractional anisotropy (FA) values

ROI			Subjects			p value
			AD	MCI	CN	AD–MCI	AD–CN	MCI–CN
Superior temporal gyrus, ROI 6, x ±58, y −32, z +14	Rt	gm	0.238±0.015	0.225±0.014	0.233±0.034	0.02207	0.65877	0.35914
	Rt	neg	0.293±0.022	0.269±0.014	0.280±0.036	0.00077	0.24791	0.23248
	Rt	pos	0.292±0.027	0.269±0.016	0.276±0.046	0.00467	0.25159	0.54348
	Lt	gm	0.227±0.016	0.204±0.014	0.213±0.016	0.00014	0.02329	0.10851
	Lt	neg	0.282±0.026	0.250±0.017	0.266±0.021	0.00024	0.07557	0.02310
	Lt	pos	0.296±0.027	0.255±0.020	0.267±0.023	0.00002	0.00341	0.12132
Superior temporal gyrus, ROI 7, x ±64, y −16, z −6	Rt	gm	0.212±0.023	0.190±0.013	0.194±0.012	0.00105	0.00807	0.32091
	Rt	neg	0.264±0.028	0.237±0.014	0.246±0.020	0.00137	0.04480	0.18303
	Rt	pos	0.271±0.036	0.236±0.015	0.244±0.018	0.00062	0.01191	0.14461
	Lt	gm	0.120±0.017	0.190±0.016	0.181±0.019	0.10116	0.00693	0.13342
	Lt	neg	0.251±0.015	0.240±0.021	0.233±0.029	0.12077	0.04121	0.40239
	Lt	pos	0.265±0.036	0.238±0.015	0.229±0.021	0.00667	0.00202	0.18436
Superior temporal gyrus, ROI 8, x ±58, y −26, z −4	Rt	gm	0.231±0.023	0.210±0.016	0.217±0.234	0.00477	0.11993	0.29256
	Rt	neg	0.276±0.026	0.254±0.021	0.265±0.030	0.01128	0.31982	0.19190
	Rt	pos	0.284±0.032	0.249±0.013	0.262±0.028	0.00018	0.05107	0.08649
	Lt	gm	0.223±0.026	0.218±0.020	0.220±0.020	0.55759	0.67971	0.85453
	Lt	neg	0.270±0.020	0.266±0.026	0.268±0.029	0.62074	0.84838	0.80622
	Lt	pos	0.281±0.030	0.263±0.018	0.269±0.026	0.03818	0.22205	0.44215
Superior frontal gyrus, ROI 9, x ±24, y +56, z +4	Rt	gm	0.253±0.027	0.255±0.026	0.254±0.033	0.87967	0.93917	0.95524
	Rt	neg	0.303±0.022	0.293±0.023	0.301±0.033	0.24157	0.90915	0.40468
	Rt	pos	0.311±0.030	0.302±0.036	0.295±0.030	0.47368	0.15143	0.51314
	Lt	gm	0.268±0.025	0.244±0.027	0.247±0.025	0.01453	0.02980	0.73554
	Lt	neg	0.311±0.026	0.289±0.034	0.302±0.030	0.05134	0.39898	0.24469
	Lt	pos	0.347±0.045	0.303±0.034	0.298±0.030	0.00298	0.00125	0.67386
Superior frontal gyrus, ROI 10, x ±28, y +58, z +24	Rt	gm	0.205±0.027	0.188±0.027	0.182±0.028	0.08842	0.03057	0.54784
	Rt	neg	0.249±0.042	0.235±0.032	0.235±0.033	0.28368	0.30211	0.98821
	Rt	pos	0.279±0.046	0.248±0.041	0.239±0.037	0.04714	0.01125	0.49593
	Lt	gm	0.203±0.027	0.178±0.027	0.168±0.042	0.00985	0.00989	0.44181
	Lt	neg	0.258±0.028	0.229±0.036	0.223±0.052	0.01580	0.02985	0.73585
	Lt	pos	0.272±0.039	0.241±0.045	0.221±0.057	0.05028	0.00800	0.26447

Rt right, Lt left, AD Alzheimer's disease, MCI mild cognitive impairment, CN cognitive normal, Gm geometric mean, neg negative, p positive

The ROIs are listed in the table above. The significant level was used with p = 0.016 (p = 0.05/3 times repeated) because we repeated the same tasks three times among the three groups