Skip to main content

View full-text article in PMC

. Author manuscript; available in PMC: 2010 Jun 1.

Published in final edited form as: Neuroimage. 2009 Jun;46(2):530–541. doi: 10.1016/j.neuroimage.2009.01.068

Table 3.

Age differences in Fractional Anisotropy (FA), Radial Diffusivity (RD), and Axial Diffusivity (AD).

	FA			RD			AD

	YA M (SD)	OA M (SD)	η_p	YA M (SD)	OA M (SD)	η_p	YA M (SD)	OA M (SD)	η_p
Genu	0.55 (0.04)	0.50 (0.04)^***	0.33	0.49 (0.04)	0.54 (0.06)^**	0.22	1.27 (0.05)	1.24 (0.06)	0.09
Splenium	0.67 (0.04)	0.63 (0.04)^*	0.15	0.54 (0.12)	0.59 (0.11)	0.05	1.78 (0.19)	1.75 (0.17)	0.01
Left CB	0.58 (0.04)	0.56 (0.04)^*	0.17	0.46 (0.05)	0.52 (0.04)^**	0.27	1.26 (0.09)	1.25 (0.09)	0.00
Right CB	0.55 (0.02)	0.51 (0.04)^**	0.18	0.47 (0.03)	0.51 (0.03)^***	0.40	1.26 (0.08)	1.23 (0.07)	0.01
Left UF^‡	0.51 (0.05)	0.46 (0.04)^**	0.21	0.51 (0.06)	0.55 (0.07)	0.10	1.23 (0.16)	1.17 (0.08)	0.04
Right UF^†	0.51 (0.04)	0.47 (0.03)^**	0.27	0.48 (0.03)	0.54 (0.07)^**	0.24	1.19 (0.04)	1.19 (0.06)	0.00
Left ILF	0.57 (0.04)	0.53 (0.03)^**	0.21	0.48 (0.03)	0.55 (0.06)^***	0.35	1.31 (0.07)	1.36 (0.07)	0.10
Right ILF	0.58 (0.04)	0.54 (0.03)^***	0.25	0.46 (0.02)	0.50 (0.05)^**	0.25	1.29 (0.06)	1.31 (0.06)	0.03

Note: Metric dimensions: FA: dimensionless; AD, RD: 10⁻³ mm²/s;

^*

= P < 0.01;

^**

= P < 0.005;

^***

= P < 0.001.

YA = young adult; OA = older adult; M = mean; SD = standard deviation; η_p = partial eta (effect size).

^†

= N = 19 YAs, 20 OAs;

^‡

= N = 20 YAs, 19 OAs.