Table 8.

The ROI data and results of the corresponding statistical test for the mean diffusivity (MD) values

ROI			Subjects			p value
			AD	MCI	CN	AD–MCI	AD–CN	MCI–CN
Superior temporal gyrus, ROI1, X ±58, Y −6, z −4	Rt	gm	1.045±0.156	0.875±0.072	0.908±0.084	0.00026	0.00490	0.22578
	Rt	neg	1.049±0.161	0.870±0.076	0.907±0.091	0.00022	0.00500	0.21123
	Rt	pos	1.042±0.153	0.879±0.069	0.909±0.079	0.00030	0.00450	0.24897
	Lt	gm	1.023±0.155	0.911±0.117	0.955±0.099	0.02489	0.15434	0.25234
	Lt	neg	1.027±0.163	0.917±0.127	0.960±0.108	0.03755	0.18508	0.30315
	Lt	pos	1.022±0.150	0.907±0.110	0.954±0.092	0.01635	0.13488	0.19277
Limbic parahippocampal gyrus, ROI 2, X ±32, y −24, z −22	Rt	gm	0.100±0.111	0.891±0.071	0.882±0.060	0.00187	0.00091	0.69383
	Rt	neg	0.933±0.111	0.877±0.074	0.875±0.061	0.00112	0.00088	0.93385
	Rt	pos	1.007±0.111	0.906±0.074	0.890±0.058	0.00395	0.00088	0.49030
	Lt	gm	1.036±0.116	0.879±0.060	0.882±0.075	0.00002	0.00012	0.92913
	Lt	neg	1.031±0.111	0.868±0.058	0.870±0.074	0.00001	0.00005	0.94042
	Lt	pos	1.036±0.118	0.890±0.062	0.893±0.078	0.00008	0.00039	0.90633
Middle temporal gyrus, ROI 3, X ±40, y −74, z 28	Rt	gm	0.963±0.099	0.837±0.062	0.832±0.058	0.00011	0.00009	0.78235
	Rt	neg	0.963±0.108	0.832±0.062	0.836±0.062	0.00013	0.00034	0.89277
	Rt	pos	0.966±0.105	0.843±0.064	0.829±0.054	0.00025	0.00008	0.49316
	Lt	gm	0.944±0.115	0.852±0.059	0.875±0.078	0.00590	0.05985	0.33837
	Lt	neg	0.944±0.118	0.846±0.065	0.871±0.077	0.00511	0.05068	0.30961
	Lt	pos	0.947±0.114	0.859±0.054	0.879±0.081	0.01048	0.14942	0.23174
Occipital cuneus, ROI 4, X ±26, y −84, z 16	Rt	gm	0.948±0.090	0.829±0.051	0.839±0.058	0.00004	0.00035	0.61712
	Rt	neg	0.934±0.082	0.828±0.059	0.839±0.060	0.00015	0.00085	0.59032
	Rt	pos	0.962±0.106	0.830±0.046	0.838±0.057	0.00004	0.00031	0.65473
	Lt	gm	0.924±0.103	0.853±0.080	0.879±0.063	0.03507	0.15081	0.31487
	Lt	neg	0.920±0.104	0.853±0.087	0.873±0.063	0.05182	0.13221	0.45565
	Lt	pos	0.927±0.107	0.853±0.075	0.884±0.064	0.02715	0.18312	0.21208
Limbic uncus, ROI 5, X ±24, y −4, z −32	Rt	gm	1.047±0.142	0.950±0.103	0.928±0.066	0.03111	0.00532	0.46841
	Rt	neg	1.040±0.165	0.933±0.111	0.918±0.081	0.03475	0.01353	0.65553
	Rt	pos	1.053±0.135	0.967±0.100	0.943±0.065	0.04522	0.00692	0.42162
	Lt	gm	1.055±0.118	0.962±0.071	0.912±0.097	0.00053	0.00090	0.61871
	Lt	neg	1.053±0.119	0.912±0.074	0.899±0.099	0.00023	0.00049	0.66891
	Lt	pos	1.062±0.124	0.939±0.069	0.923±0.098	0.00118	0.00166	0.57150

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