Table 4. Principal component analysis of mean accuracy data, from which factor loadings are extracted for all tasks.

	Factor 1	Factor 2
Leaves	.793	.011
Owls	.741	.086
Butterflies	.735	.224
Wading birds	.727	.134
Mushrooms	.645	.152
Cars	−.142	.880
Planes	.494	.600
Motorcycles	.431	.550