Table 4.

White matter volume correlates of cognitive processing speed (coding test) in the whole sample

		Brain region	Laterality	t‐value*	Cluster sizea	x	y	z
Executive functions
	Coding
		Superior longitudinal fasciculusb	R	4.33	981	17	−53	42
		Anterior thalamic radiation	L	4.18	353	−3	−11	−3
		Anterior corona radiatab	R	4.17	844	32	29	27
		Forceps minorb	L	4.14	2,127	−17	39	9
		Inferior longitudinal fasciculus	R	4.12	429	35	−74	6
		Corticospinal tractb	L	4.09	2,292	−24	−20	57
		Anterior thalamic radiationb	R	4.06	660	8	−15	3
		Inferior fronto‐occipital fasciculus	L	3.93	406	−30	−15	−2
		Optic radiation	L	3.86	176	−39	−8	−27
		Callosal body	R	3.55	154	15	11	35
		Corticospinal tract	R	3.46	208	33	−2	33

^aIndicated in number of neighboring voxels.

^bSurvived whole brain family‐wise error rate (FWE) correction for multiple testing. The spatial coordinates refer to the Montreal Neurological Institute (MNI) standardized space.

^* Significant at uncorrected p < .001 with a cluster extent threshold of N = 100 voxels;