Table 1.

Descriptive statistics of the sample (mean ± SD) (n = 46).

		Control Group (n = 25)	MCI Group (n = 21)
Demographic Variables (years)	Men/Women	8/17	13/8
	Age	76.24 ± 5.37	74 ± 5.49
	Education	15.08 ± 3.58	13.57 ± 3.88
Cognitive Assessment Scores	STM Shape-Only 3	0.89 ± 0.07	0.84 ± 0.08
	STM Shape-Colour Binding 3	0.71 ± 0.10	0.63 ± 0.10
	STM Shape-Colour Binding 2	0.91 ± 0.11	0.81 ± 0.13
	ACE	94.42 ± 5.42	84.33 ± 7.95
	TMT B-A	56.96 ± 42.60	78.19 ± 35.32
	HVLT Recognition	10.25 ± 2.19	8.70 ± 2.41
	HVLT Delayed Recall	7.32 ± 3.68	3.90 ± 3.62
	HVLT Total Recall	24.64 ± 6.34	17.24 ± 5.17
	Total FAS	47.48 ± 12.51	32.52 ± 14.52
	Animal Fluency	19.72 ± 4.26	10.90 ± 5.33
	Digit Symbol	55.96 ± 13.54	42.86 ± 9.42
	Rey Figure Copy	31.66 ± 7.39	31.52 ± 3.77
	Rey Figure Immediate Recall	18.29 ± 7.85	11.57 ± 9.02
	Rey Figure Delayed Recall	17.87 ± 6.81	12.72 ± 8.80
	Graded Naming Test	23.00 ± 4.06	19.24 ± 3.99
Imaging Variables (% in ICV)	Normal Appearing White Matter	32.68 ± 1.52	32.69 ± 1.24
	Cerebrospinal Fluid	30.76 ± 2.50	31.45 ± 1.66
	Left Hippocampus	0.239 ± 0.046	0.214 ± 0.050
	Right Hippocampus	0.245 ± 0.040	0.209 ± 0.049
	Total Hippocampus	0.484 ± 0.078	0.423 ± 0.094
	Left Caudate Nucleus	0.192 ± 0.043	0.181 ± 0.047
	Right Caudate Nucleus	0.207 ± 0.033	0.180 ± 0.052
	Left Putamen	0.235 ± 0.050	0.216 ± 0.049
	Right Putamen	0.239 ± 0.050	0.226 ± 0.049
	Left Globus Pallidus	0.020 ± 0.008	0.014 ± 0.008
	Right Globus Pallidus	0.019 ± 0.010	0.012 ± 0.008
	Left Thalamus	0.238 ± 0.044	0.245 ± 0.048
	Right Thalamus	0.231 ± 0.041	0.236 ± 0.052
	Parahippocampal Gyrus	0.279 ± 0.114	0.218 ± 0.050

Legend: VSTM: Visual Short Term Memory, ACE: Addenbrooke's Cognitive Examination, TMT B-A: Trail Making Task B-A, HVLT: Hopkins Verbal Learning Task.