Table 1.

Mean improvement gradients for the filler and Hebb sequences across the six experimental conditions.

Stimulus overlap	Stimulus type	Sequence type
		Filler gradient	Hebb gradient	Difference [95% CI]
Full	Upright faces	0.016	0.010	-0.007 [-0.027,0.013]
	Inverted faces	0.018	0.025	0.007 [-0.013,0.027]
	Matrices	0.015	0.024	0.009 [-0.011,0.029]
None	Upright faces	0.001	0.037	0.035 [0.015,0.056]
	Inverted faces	0.006	0.024	0.018 [-0.002,0.039]
	Matrices	0.015	0.043	0.028 [0.008,0.048]

Gradient represents the mean improvement in proportion correct at each experimental epoch.