Table 1.

Means, standard deviations and loadings of each task RT on all three components.

Task	RT (ms)		Principal Component Loadings
	Mean	SD	Component 1	Component 2	Component 3
Simple reaction time task	294.38	50.75	0.65 *	0.59	−0.33
Two-choice response time task	378.16	61.19	0.76 *	0.51	-
Arithmetic decision task	1116.12	327.84	0.72 *	-	0.31
Lexical decision task	1248.64	357.79	0.63 *	−0.62	−0.40
Semantic categorization task	751.97	209.61	0.84 *	−0.44	-
Object judgement task	814.68	188.15	0.61 *	-	0.41
Tower of London task	1997.52	626.12	0.51	-	0.62 *

Note: For PCA the loadings <0.30 were suppressed; primary loadings marked with *.