Table 2.

Pearson's product-moment correlation coefficients for the association between FA values and IHI changes in each tract for young and older adultsa

YoungOlder
1:13:11:31:13:11:3
DLPFC-M1
    Left to right−0.16−0.020.020.490.69a0.68a
    Right to left0.10−0.020.010.63a0.62a0.57
PMd-M1
    SIHI (8 ms)
        Left to right−0.14−0.280.03−0.260.61a0.72a
        Right to left−0.040.15−0.110.68a0.71a0.55
    LIHI (40 ms)
        Left to right−0.01−0.22−0.200.180.420.59
        Right to left0.01−0.050.110.66a0.75a0.76a
M1-M1
    SIHI (10 ms)
        Left to right0.070.09−0.53−0.380.20−0.04
        Right to left−0.22−0.090.02−0.400.140.31
    LIHI (40 ms)
        Left to right−0.33−0.06−0.25−0.270.350.00
        Right to left−0.30−0.14−0.16−0.320.080.14
  • aSignificant correlation coefficients (DLPFC, critical r = ±0.57, p = 0.017; PMd and M1, r = ±0.61, p = 0.008).