Skip to main content
. Author manuscript; available in PMC: 2013 Jun 5.
Published in final edited form as: Brain Struct Funct. 2011 Dec 25;217(3):747–760. doi: 10.1007/s00429-011-0371-4

Table 5.

Significant ROI at baseline

Spelling-impaired sample Control-group p
Right PLIC
FA 0.4838 0.5079 0.005
MD 0.00054 0.00051 0.000
Axial D. (mm2 s−1 ) 0.00104 0.00101 0.023
Radial D. (mm2 s−1 ) 0.00029 0.00026 0.000
Left PLIC
FA 0.4989 0.5176 0.026
Radial D. (mm2 s−1 ) 0.00030 0.00028 0.022
Right SCR
FA 0.2130 0.2233 0.032
MD 0.00033 0.00031 0.002
Axial D. (mm2 s−1 ) 0.00053 0.00050 0.004
Radial D. (mm2 s−1 ) 0.00024 0.00021 0.003
Right SLF
Radial D. (mm2 s−1 ) 0.00037 0.00034 0.049

Comparison of mean FA, MD, axial and radial diffusivity indices across an a priori defined ROI between the spelling-impaired sample and controls Axial diffusivity and radial diffusivity values are expressed in mm2 s−1

R PLIC (FA: F (1,26) = 9.25, p < 0.05, ηp2 = 0.26; MD: F (1,26) = 21.03, p < 0.001, ηp2 = 0.45; L1: F (1,26) = 5.83, p < 0.05, ηp2 = 0.18; L23: F (2,25) = 17.30, p < 0.001, ηp2 = 0.40)

R SCR (FA: F (1,26) = 5.12, p < 0.05, ηp2 = 0.16; MD: F (1,26) = 12.29, p < 0.05, ηp2 = 0.32; L1: F (1,26) = 9.72, p < 0.05, ηp2 = 0.27; L23: F (1,26) = 10.45, p < 0.05, ηp2 = 0.29)

R SLF (L23: F (1,26) = 4.27, p = 0.05, ηp2 = 0.14)

L PLIC (FA: F (1,26) = 5.59, p < 0.05, ηp2 = 0.18; L23: F (1,26) = 5.98, p < 0.05, ηp2 = 0.19)

TG training group, CG control group, WG waiting group, FA fractional anisotropy, MD mean diffusivity, PLIC posterior limb of internal capsule, SCR superior corona radiata, SLF superior longitudinal fasciculus