Table C1.

Descriptive statistics of ideal observer model results with different step size, e.g., 50, 100, 1000, and 2000.

	Step = 50		Step = 100		Step = 1000		Step = 2000
kS	40.66		40.67		40.65		40.67
Pre-heading (°)	10	30	10	30	10	30	10	30
kP	8.37	43.19	8.38	43.21	8.27	43.55	8.24	42.92
Dot number	45	135	45	135	45	135	45	135
kC	144.17	219.88	144.19	219.97	144.29	219.99	143.78	220.05
No pre-heading
Mean	15.64				16.92
95% CI	[8.65, 22.62]				[11.04, 22.78]
Peripheral 10°-offset
Mean	16.26				17.32
95% CI	[9.42, 23.09]				[11.54, 23.10]
Central 10°-offset
Mean	14.56				15.93
95% CI	[8.28, 20.84]				[10.48, 21.36]