Cognitive Intraindividual Variability and White Matter Integrity in Aging
Table 2
Age effects on white matter quality in the JHU-ROIs.
JHU-ROIs
Effect sizesa
FA
MD
RD
AD
Anterior thalamic radiation L
.186
.414*
.411*
.409*
Anterior thalamic radiation R
.247
.362*
.366*
.348*
Corticospinal tract L
.112
.157
.265
.000
Corticospinal tract R
.119
.142
.269
.010
Cingulum/cingulate gyrus L
.171
.285
.336*
.009
Cingulum/cingulate gyrus R
.087
.083
.153
.005
Cingulum/hippocampus L
.020
.007
.001
.019
Cingulum/hippocampus R
.005
.027
.027
.013
Forceps major
.336*
.050
.080
.018
Forceps minor
.634**
.254
.448**
.011
Inferior fronto-occipital fasciculus L
.494**
.356*
.493**
.102
Inferior fronto-occipital fasciculus R
.402*
.213
.359*
.019
Inferior longitudinal fasciculus L
.324
.155
.271
.004
Inferior longitudinal fasciculus R
.380*
.027
.157
.057
Superior longitudinal fasciculus L
.181
.502**
.529**
.420**
Superior longitudinal fasciculus R
.225
.464**
.566**
.176
Uncinate fasciculus L
.211
.132
.226
.002
Uncinate fasciculus R
.071
.083
.113
.011
Superior longitudinal fasciculus temporal part L
.077
.000
.034
.058
Superior longitudinal fasciculus temporal part R
.002
.022
.015
.006
Mean value
.324*
.311*
.425**
.127
Values in the table represent effect sizes. L: left; R: right. FA: fractional anisotropy; MD: mean diffusivity; RD: radial diffusivity; AD: axial diffusivity.
aEffect sizes are partial eta squared (). ; **. For the mean values, *; **.
