Table A1. Distributions of responses fit by the mixtures of Laplace distributions.

Target–flanker difference (deg)	Means (deg)		Scale parameters (deg)			Proportion p1	G-statistic
	μ1	μ2	b1	b2	b
0	0	90	–	–	10.8	0.99	5.3 ns
22.5	28.4	21.8	–	–	12.6	0.27	15.6∗∗
45	28.9	38.9	–	–	12.5	0.79	2.4 ns
67.5	24.0	67.5	–	–	12.5	0.94	3.1 ns
90	0	90	–	–	10.5	0.94	7.3∗
0	0	90	10.8	12.2	–	0.99	5.2∗
22.5	222.5	16.2	22.8	10.6	–	0.14	4.8 ns
45	29.1	38.6	11.9	13.9	–	0.78	1.9 ns
67.5	23.8	70.1	12.9	8.2	–	0.95	2.8 ns
90	0	90	10.6	10.1	–	0.94	7.2∗∗
±22.5	0	619.9	–	–	15.2	0.32	9.1∗∗
±45	0	641.0	–	–	15.7	0.50	1.8 ns
±67.5	0	673.4	–	–	14.7	0.80	1.3 ns

Note. The fit parameters (means, scale parameters, proportion of the first component distribution in the mixture) and badness-of-fit (G-statistic) are reported. Data were pooled across the observers and numbers of flankers. Statistical significance of differences between approximation and the data:

^∗∗p < 0.01

^∗p < 0.05, ns p > 0.05.