Figure 7.

Numerical analysis of the EN dynamics with circular orientation stimulus ensemble and fixed representation of visual space far from pattern formation threshold. (a) OPMs and their power spectra in a simulation of Equation (3) with r(x) = 0, r = 0.8, σ/Λ = 0.3 (η = 0.028) and circular orientation stimulus ensemble. Pinwheel density time courses for four different simulations (parameters as in a; gray traces, individual realizations; black trace, simulation in a; red trace, mean value) (c, d) OPMs and their power spectra in a simulation of Equation (3) with r(x) = 0, r = 0.8, σ/Λ = 0.12 (η = 0.57) and circular orientation stimulus ensemble. (d) Pinwheel density time courses for four different simulations (parameters as in c; gray traces, individual realizations; black trace, simulation in c; red trace, mean value).