Table 1.

Age group differences in mean kurtosis

	Younger	Older	t
Putamen	0.75 ± 0.05	0.95 ± 0.11	173.86
Globus Pallidus	1.22 ± 0.12	1.31 ± 0.22	10.37
Caudate Nucleus	0.64 ± 0.04	0.70 ± 0.06	44.33
Dentate Nucleus	0.99 ± 0.06	1.06 ± 0.10	28.04
Thalamus	0.88 ± 0.05	0.89 ± 0.06	0.794
Hippocampus	0.66 ± 0.03	0.70 ± 0.04	33.94
Sup. Long. Fasc.	0.99 ± 0.03	0.96 ± 0.05	22.83
Forceps Major	0.77 ± 0.03	0.75 ± 0.04	6.54
Forceps Minor	0.89 ± 0.04	0.85 ± 0.06	20.47

Notes. Mean kurtosis values in subcortical grey matter regions of interest and white matter tracts. Data is presented as mean ± standard deviation. Post hoc t-tests were used for group comparisons of MK in each ROI from which the t-statistics are shown.