Table 2.

Parameter estimates obtained by fitting the SSP model to the distributional data of the four conditions in the experiment.

	Parameters
Target level	p	A/B	rd	sd0	ter	G2	df	BIC
CONST.
Global	0.2754	0.0546	0.0319	1.340	0.3191	34.3 (32.8)	13 (11)	64.8 (75.5)
Local	0.2654	0.0549	0.0316	1.354	0.3182	27.5 (26.1)	13 (11)	58.0 (68.8)
RAND.
Global	0.2512	0.0605	0.0135	1.143	0.3124	41.5 (27.9)	13 (11)	72.0 (70.5)
Local	0.2165	0.0574	0.0298	1.345	0.3229	24.0 (22.3)	13 (11)	54.5 (64.9)
	B*		B*; L*; B×L*

p, perceptual input; A/B, response thresholds; r_d, rate of decrease in spotlight; s_d0, spotlight width; t_er, mean non-decision time (in seconds); G², Wilks likelihood ratio chi-square; df, degrees of freedom; BIC, Bayesian information criterion. The numbers in parenthesis represent the fit performance for the alternative SSPc model (see text for details). L, Level factor; B, block-type factor,

^*p < 0.05.