Anatomic and Functional Brain Imaging in Alzheimer's Disease / Table 4

TABLE 4. Spearman rank-sum’ correlations between right-left metabolic asymmetries [Eq. (1)] and drawing/syntax comprehension or visual recall/verbal recall discrepancies in AD patients of varying dementia severity ^a,b

	Right-left metabolic asymmetry
Neuropsychological discrepancy	Prefrontal	Premotor	Parietal	Lat temporal
Controls ( N = 15-16 )
Drawing versus comprehension	- 0.10	- 0.33	0.00	0.12
Visual versus verbal recall	- 0.30	- 0.39	- 0.30	- 0.17

Mildly demented AD ( N = 10 )
Drawing versus comprehension	0.04	- 0.15	0.04	- 0.24
Visual versus verbal recall	- 0.22	- 0.21	- 0.16	- 0.18

Moderately demented AD ( N = 13)
Drawing versus comprehension	0.76^**	0.76^**	0.79^**	0.53
Visual versus verbal recall	0.49	0.55^*	0.69^**	0.48

^aPositive correlation indicates that better drawing capacity or better visual recall is associated with relative high right-sided metabolism. Scanditronix PC 1024-7B data from ref. 31.

^b Spearman rank-sum correlation differs from zero: ^* p < 0.05; ^** p < 0.01.

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