Table 6.

lists all 16 possible cue configurations, the targets producing these configurations, and the probabilities of these configurations.

	Cue Configuration	Step Up (A)	Step Dn (B)	Ramp Up (C)	Ramp Dn (D)	Flat (E)
1	Transition Contrast	P1*P′2*P′5
2	Transition Contrast Kink	P1*P2*P′5
3	Transition Contrast Kink High Picture Height	P1*P2*P5
4	Transition Contrast High Picture Height	P1*P′2*P5
5	Kink	P′1*P2*P′5
6	Kink High Picture Height	P′1*P2*P5
7	L-Junction		P3*P′5
8	L-Junction Low Picture Height		P3*P5
9	Bend Out			P4*P′5
10	Bend Out High Picture Height			P4*P5
11	Bend In				P4*P′5
12	Bend In Low Picture Height				P4*P5
13	High Picture Height	P′1*P′2*P5		P′4*P5
14	Intermediate Picture Height					P5
15	Low Picture Height		P′3*P5		P′4*P5
16	None (No Cues Visible)	P′1*P′2*P′5	P′3*P′5	P′4*P′5	P′4*P′5	P′5