Table 1.

Pairwise correlation coefficients (Pearson's) between the performances of subjects in the four number discrimination tasks, with size or density (dens) varying and blur equal (eq) or unequal (uneq).

	size-eq	dens-eq	size-uneq	dens-uneq
size-eq		0.29	0.63	0.45
dens-eq			0.81	0.71
size-uneq				0.82