Table 3. Parameters used to generate data shown in Fig 3 (comparison of optimal and suboptimal nonlinearities).

upstream noise dominant	σup	0.8
	κ	0
	σdown	0.005
Poisson noise dominant	σup	0
	κ	0.2
	σdown	0.005
downstream noise dominant	σup	0.05
	κ	0
	σdown	0.3