Table 2.

White matter clusters showing increased mean diffusivity in essential tremor vs. healthy control subjects.

	Montreal Neurological Institute coordinates			Cluster size (number of voxels)	P family-wise error-corrected
	x	y	z
Right posterior corona radiata	31	−41	19	657	0.047
Left posterior corona radiata	−29	−40	19	458	0.046
Right superior longitudinal fasciculus	32	−3	20	954	0.047
Left superior longitudinal fasciculus	−32	−32	25	480	0.048
Right fornix (cres)/stria terminalis	29	−25	−8	160	0.047
Left fornix (cres)/stria terminalis	−30	−23	−7	136	0.046
Genu of the corpus callosum	−11	29	−6	848	0.047
Splenium of the corpus callosum	−18	−46	7	3037	0.042
Right anterior limb of internal capsule	22	22	0	750	0.047
Left anterior limb of internal capsule	−15	15	−4	1162	0.046
Right posterior limb of the internal capsule	25	−17	1	642	0.047
Left posterior limb of the internal capsule	−17	−3	7	787	0.046
Right retrolenticular region of internal capsule	31	−33	11	165	0.047
Left retrolenticular region of internal capsule	−38	−28	−3	972	0.046
Left posterior thalamic radiation	−38	−39	2	356	0.046

White matter clusters with significantly increased mean diffusivity (P _{family-wise error-corrected} < 0.05) in essential tremor vs. healthy control subjects. Coordinates indicate the location of the cluster peak in Montreal Neurological Institute convention.