Table 4.

Confusion matrices for the four groups. A: Black, Single-Blur; B. Gray, Single-Blur; C. Black, Double-Blur; and D. Gray, Double-Blur.

			Subject Response (%)
			Step Up	Step Dn	Ramp Up	Ramp Dn	Flat
Target Presented (%)	A: Bk, Single	Step Up	100	0.00	0.00	0.00	0.00
		Step Dn	0.00	95.4	0.00	3.24	1.39
		Ramp Up	0.93	0.46	72.7	1.39	24.5
		Ramp Dn	0.00	0.93	0.46	83.3	15.3
		Flat	0.93	0.46	4.17	5.09	89.4
	B: Gy, Single	Step Up	99.1	0.00	0.93	0.00	0.00
		Step Dn	0.00	80.6	0.46	11.6	7.41
		Ramp Up	0.46	0.00	78.7	0.46	20.4
		Ramp Dn	0.00	8.33	0.93	72.7	18.1
		Flat	0.93	1.39	10.2	11.1	75.9
	C: Bk, Double	Step Up	82.9	2.78	10.7	0.00	3.70
		Step Dn	1.39	63.9	2.78	14.8	17.1
		Ramp Up	4.17	4.63	72.7	1.85	16.7
		Ramp Dn	3.24	11.6	5.09	48.6	31.5
		Flat	1.85	6.02	23.2	8.80	60.2
	D: Gy, Double	Step Up	77.8	2.31	10.2	3.24	6.48
		Step Dn	3.24	30.6	11.6	27.8	26.9
		Ramp Up	1.85	5.56	50.9	12.5	29.2
		Ramp Dn	3.24	13.9	9.26	48.2	25.5
		Flat	6.02	12.0	19.4	13.9	48.6