Table 5.

Linear regression model for older adults for predicting RT of the dominant FDI.

Y = Dominant FDI RT
Coefficients	Estimate (β)	Std. Error	t-value	p-value	Delta R 2
(Intercept)	0.593	0.089	6.693	0.000***
SMCND GABA+	−0.224	0.044	−5.139	0.000***	0.680
SMCD GABA+	0.088	0.031	2.819	0.015*	0.205
M1ND–M1D l-IHiNORM(prep)	0.102	0.039	2.619	0.022*	0.177
F(3,12)-statistic	8.951
p-value	0.002**
Residual Std. Error	0.038
Adj. R 2	0.614
Highest VIF score	1.53

^*p < 0.05.

^**p < 0.01.

^***p < 0.001.