Fig. 11

Propagation. Top row: Excitatory (blue) and inhibitory (red) activity with sigmoidal population activation function. Activity is extinguished by 100 ms. No propagation is present. Middle row: Population activities with Gaussian firing rate function. Here, a traveling wave pulse forms and begins to propagate. Bottom row: same as middle but at later times. The traveling wave continues to propagate until it dies at the boundary. The wavespeed is approximately 1 mm/s. Parameters are the same in each plot