Table 1.

Correlations between mean FA in aSLF ROIs and scores on mental arithmetic tests, before and after controlling for age

Mental arithmetic tests	FA				Age
	Left aSLF (n = 27)		Right aSLF (n = 28)
	r	P	r	P	r	P
Before controlling for age
Simple facts	0.21	0.288	−0.05	0.820	0.16	0.404
Exact addition	0.40*	0.038	0.20	0.305	0.53†	0.003
Approximate addition	0.51†	0.006	0.41*	0.030	0.44*	0.020
Age	0.21	0.283	0.32	0.099	1.00	1.000
After controlling for age
Simple facts	0.17	0.389	−0.10	0.598
Exact addition	0.35	0.074	0.04	0.845
Approximate addition	0.48*	0.012	0.32	0.098

*, P < 0.05;

^†, P < 0.01.