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Table 4: 
Significant texture parameters obtained for the thalamus in the pair-wise comparison (AD-control, aMCI-control, and aMCI-AD)^a
Group Pair Side Distance Texture Parameter
AD-control Left 3 Contrast, difference variance
AD-control Left 4 Contrast, sum of squares
AD-control Right All Sum of squares, difference variance
AD-control Right 2, 3, 4 Contrast, difference entropy
AD-control Right 3, 4 Sum variance
AD-control Right 4 Sum entropy
aMCI-control Right 1 Angular second moment
aMCI-control Right 2, 4 Contrast, difference entropy
aMCI-control Right 2, 3, 4 Sum of squares, difference variance
aMCI-control Right 2 Inverse difference moment
aMCI-control Right 3, 4 Sum variance
aMCI-AD Left 1, 2, 3, 4 Sum average


a P value ≤ .05.

Group Pair	Side	Distance	Texture Parameter
AD-control	Left	3	Contrast, difference variance
AD-control	Left	4	Contrast, sum of squares
AD-control	Right	All	Sum of squares, difference variance
AD-control	Right	2, 3, 4	Contrast, difference entropy
AD-control	Right	3, 4	Sum variance
AD-control	Right	4	Sum entropy
aMCI-control	Right	1	Angular second moment
aMCI-control	Right	2, 4	Contrast, difference entropy
aMCI-control	Right	2, 3, 4	Sum of squares, difference variance
aMCI-control	Right	2	Inverse difference moment
aMCI-control	Right	3, 4	Sum variance
aMCI-AD	Left	1, 2, 3, 4	Sum average