Table 2. Model Parameters for 200N-DINASAUR as Used in Figures 2 and 3.

Name	Description	Ignore	Stop
Note. SOA = stimulus onset asynchrony; SC = superior colliculus. Gray boxes indicate those parameters unchanged from Bompas and Sumner (2011). The ignore condition is identical to previous work, except the distractor is now central instead of opposite to the target. The stop condition differs from the ignore condition only in the endogenous response to the signal onset (white boxes) but no new parameter is introduced.
Eccdist	Distractor eccentricity in SC (mm)	0
Ecctarg	Target eccentricity in SC (mm)	1.76
β	Steepness of spiking function	.07
τ	Decay time constant (ms)	10
τon	Transience of exo inputs	10
Act	Short-range activation	40
Inh	Long-range inhibition	55
σ	SD of spatial profile for lateral connections and inputs in SC (mm)	.7
k	Leakage	1
η	Noise amplitude	50
Th	Decision threshold	.85
δout	Output time (ms)	20
δvis	Visual delay (ms)	50
δendo	Endogenous delay (ms)	75
aexo	Amplitude of exo inputs	80
aendo,target	Amplitude of endo inputs to the target	14
aendo,fix	Amplitude of endo inputs at fixation	10
aendo,target-post	Amplitude of endo inputs to the target after SOA + δendo in signal trials	aendo,target	0
aendo,fix-post	Amplitude of endo inputs at fixation after SOA + δendo in signal trials	0	aendo,fix