Optogenetic stimulation of a normally functioning cortex from t=0 s.(a-c) represent the variation of h
with time, travelling waves in a 1-D slice of the 2-D domain, and the variation of G
R2 with time, respectively, using a constant intensity of 30 mW /mm2. (d-f) show the same features using a constant intensity of 60 mW /mm2. (g-i) show the variation of h
at a point, a 1-D slice of the 2-D domain and the pulsed illumination profile with a maximum intensity of 60 mW /mm2.