The Scientific World Journal

Research Article

Cognitive Intraindividual Variability and White Matter Integrity in Aging

Table 4

Correlations between MD in the JHU-ROIs and cognitive measures.


JHU-ROIs	CrossSquare		LetterComp		vWM		sWM		int
JHU-ROIs	iM	iSD	iM	iSD	iM	iSD	iM	iSD	iM	iSD

Left ATR	.13	*.55* **	*.41* *	*.62* **	−.03	−.07	.00	.31	.26	−.09
Right ATR	.18	.50 *	.41 *	.60 **	−.08	−.02	−.18	.17	.29	.00
Left CS	−.30	.15	.23	.51	−.15	−.15	.13	.23	.09	.02
Right CS	−.19	.08	.02	.31	−.30	.00	−.03	−.08	.05	−.05
Left CC	−.18	.26	.18	.55 **	−.22	.11	.04	.26	.11	−.15
Right CC	−.19	.06	−.05	.30	−.48 *	−.11	−.02	.14	−.07	.26
Left Cing_h	−.33	−.16	.07	.11	−.33	−.04	.10	−.09	−.17	−.19
Right Cing_h	−.08	.00	.25	.37	−.32	−.10	−.20	−.14	.06	−.14
Forceps major	−.01	.12	−.09	−.03	−.37	−.07	−.16	−.14	−.05	.10
Forceps minor	−.04	.13	.25	.42 *	−.24	−.13	.07	.09	.10	−.09
Left IFO	−.22	.23	.07	.39	−.31	−.13	.05	.35	.10	−.05
Right IFO	−.33	.06	.06	.32	−.30	−.13	.06	.15	.03	.01
Left ILF	−.30	.11	.05	.32	−.44 *	−.12	−.03	.16	.02	.03
Right ILF	−.34	−.19	−.02	.19	−.43 *	−.12	.10	.00	−.15	−.04
Left SLF	.02	*.47* *	.28	*.60* **	−.22	−.14	−.12	.31	.35	.02
Right SLF	−.08	*.41* *	.15	*.50* *	−.33	−.09	.03	.26	.34	−.10
Left UN	−.06	.16	.14	.44 *	−.40	−.05	.04	.28	−.04	−.19
Right UN	−.13	.00	.27	.49 *	−.20	−.21	.07	.13	.03	.05
Left SLF_t	−.35	−.15	−.19	−.09	−.46 *	.01	.09	−.03	−.16	−.07
Right SLF_t	−.39	−.08	−.43 *	−.19	−.39	.03	.09	−.03	−.08	−.07
Mean MD	−.12	.28	.21	.50 *	−.35	−.10	−.04	.16	.13	−.04

ATR: anterior thalamic radiation L; CS: corticospinal tract; CC: cingulum/cingulate gyrus; Cing_h: cingulum/hippocampus; IFO: inferior fronto-occipital fasciculus; ILF: inferior longitudinal fasciculus; SLF: superior longitudinal fasciculus; UN: uncinate fasciculus; SLF_t: superior longitudinal fasciculus temporal part; iM: individual mean; iSD: individual standard deviation; FA: fractional anisotropy. Tracks in italic are those showing a significant age effect.
; **.