Table 1.

F_m and values for cross-pairings of the model and human observers

Task	Observer	Human	Abnormal	Normal	Overall
	Humans		0.81 ± 0.02	0.48 ± 0.03	0.65 ± 0.02
BKE-Ω	Scan	1	0.66 ± 0.03	0.25 ± 0.02	0.46 ± 0.02
		2	0.71 ± 0.03	0.27 ± 0.02	0.49 ± 0.02
		Average	0.69 ± 0.02	0.26 ± 0.02	0.47 ± 0.01
	VS	1	0.74 ± 0.02	0.32 ± 0.03	0.53 ± 0.02
		2	0.77 ± 0.02	0.36 ± 0.03	0.56 ± 0.02
		Average	0.75 ± 0.02	0.34 ± 0.02	0.55 ± 0.01
BKE-	Scan	1	0.72 ± 0.02	0.33 ± 0.03	0.52 ± 0.02
		2	0.77 ± 0.02	0.34 ± 0.03	0.55 ± 0.02
		Average	0.74 ± 0.02	0.34 ± 0.02	0.54 ± 0.01
	VS	1	0.75 ± 0.02	0.35 ± 0.03	0.55 ± 0.02
		2	0.78 ± 0.02	0.39 ± 0.03	0.58 ± 0.02
		Average	0.76 ± 0.02	0.37 ± 0.02	0.57 ± 0.01
BAH-Ω	Scan	1	0.27 ± 0.02	0.05 ± 0.01	0.16 ± 0.02
		2	0.28 ± 0.02	0.06 ± 0.01	0.17 ± 0.02
		Average	0.28 ± 0.02	0.05 ± 0.01	0.16 ± 0.01
	VS	1	0.54 ± 0.03	0.15 ± 0.02	0.34 ± 0.02
		2	0.55 ± 0.03	0.18 ± 0.02	0.36 ± 0.02
		Average	0.54 ± 0.02	0.16 ± 0.02	0.35 ± 0.01
BAH-	Scan	1	0.64 ± 0.03	0.14 ± 0.02	0.39 ± 0.02
		2	0.67 ± 0.03	0.20 ± 0.02	0.44 ± 0.02
		Average	0.66 ± 0.02	0.17 ± 0.02	0.41 ± 0.01
	VS	1	0.65 ± 0.03	0.19 ± 0.02	0.42 ± 0.02
		2	0.69 ± 0.03	0.25 ± 0.02	0.47 ± 0.02
		Average	0.67 ± 0.02	0.22 ± 0.02	0.44 ± 0.01

BAH, background-assumed-homogeneous; BKE, background-known-exactly; VS, visual search.

Also included in the table is the F_m value between the human observers.