Table 1.

Summary of BCM equations and the parameters used in the simulation

Equations
Synaptic modification	ṁ = μφd
	φ = c(c − θM)
	θṀ = (c2 − θM)
Cortical output	c = σcort (m⋅d)
	σcort (−∞) = −1
	σcort (+∞) = 100
Parameters
Retinal patch diameter	13 pixels
Retinal DOG ratio	1:3
Initial synaptic weights	Random 0.0–0.1
Initial threshold	θ0 = 0.7
Learning rate	μ = 10−6
Memory constant	τ = 300–1000