Figure 15. Spontaneous pattern formation in the absence of input ( c=0 ). β=1. ( A-B):J0=-2,J1= 0. 1 (A) T= 0 (B) For T< 0, the homo-geneous steady-state value increases. Here, T=-10. (C-D): Pattern formation in the extended regime for J0=-2,J1= 0. 4. (C) No hue tuning curve emerges for T≥0. Here, T=0. ( D ) T=-10. A hue tuning curve is generated in the absence of external input. (E-F):T=-10,J0=-7,J1= 6. The emergent tuning curve is more selective for larger values of J1. For each run, the activity is peaked about a different angle, set by the random initial conditions. The peak value and tuning width are consistent between trials. Network Neuroscience 702Pattern forming mechanisms of color vision Downloaded from http://direct. mit. edu/netn/article-pdf/7/2/679/2118501/netn_a_00294. pdf by guest on 09 August 2024 