Table 1.

Parameter values for the DoG model

Parameter	Value	Reference
Cones per mm2	M = ⌈19890x−0.6331⌉	Packer et al., 1989
Global retinal L:M PDF	G = $\frac{1}{0.74w\sqrt{2\pi }}\times \exp \left\{\frac{-{\left(\ln w-0.47\right)}^2}{1.09}\right\}$	Where w = L/M weight; Dacey et al., 2000b
Dendritic field radius (mm)	D = 0.002738x1.327	Crook et al., 2014; current study
Center radius	Rc = D
Surround radius	Rs = 6D	Croner and Kaplan, 1995
RF σ	σc = Rc; σs = Rs	Field et al., 2010
RF μ	μ = 0	All centered around zero
Cones to center	nc = ‖0.29x2 + 0.83x − 0.28‖	Crook et al., 2014
Cones to surround	ns = $n_c\times {\left(\frac{R_s}{R_c}\right)}^2$
Cone radius	H = 3.995 × exp(0.0163x) − 3.149 × exp( − 1.288x)	Packer et al, 1989
Center weighting	kc = 1
Surround weighting	ks = [0.5, 0.9]	Croner and Kaplan, 1995 (0.5); Lennie et al., 1991 (0.91)
Center Gaussian weighting kernel	KQc(di) = $K_c\times \exp \left(\frac{-d_i^2}{2{\sigma }^2}\right),d_i=\left[0,R_c\right]$	Where d is the distance of a single cone, i, from the origin
Surround Gaussian weighting kernel	KQs(dj) = $K_c\times \exp \left(\frac{-d_j^2}{2{\sigma }^2}\right),d_j=\left[0,R_s\right]$	Where d is the distance of a single cone, j, from the origin

x, Retinal location, expressed in millimeters of temporal equivalent eccentricity (Watanabe and Rodieck, 1989).