Table 1.

SSEs and AIC scores for six candidate models, fitted to two data sets

	Linear summation	Independent transducers	Early summation	Linear numerator	Linear denominator	Late summation
Space (SSE)	2.52	0.65	0.12	0.20	0.11	0.05
Eye (SSE)	1.11	0.24	0.04	0.07	0.05	0.01
Space (AIC)	−3.80	−2.22	−5.85	−6.05	−7.89	−10.33
Eye (AIC)	−6.49	−5.46	−11.10	−9.46	−10.77	−14.79

Smaller values indicate a better fit.