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A neural field model for color perception unifying assimilation and contrast

Fig 8

Dynamics of the color neural field Eq (3).

The neural activities are plotted after a. one, b. two, c. thirty iterations, and convergence is reached after fifteen iterations. The red curve indicates the activity of hypercolumn r₀ corresponding to the test stripe. Other blue curves correspond to spatial points r_i located on surrounding stripes. Notice that only four and not eight different curves are seen, because of the axial symmetry artificially introduced to facilitate numerical computations, as explained in S2 Appendix. A video of the dynamics is provided in S1 Video.

doi: https://doi.org/10.1371/journal.pcbi.1007050.g008