Fig 2. Both E/I balance and SFA level affect the spatio-temporal properties of cortical activities.

(A.) Within the single bump the levels of $\overline{g_{Ks}}$ and w _{i → e} determine the speed of propagation. However, SFA does have a much larger effect on wave speed than E/I balance. Panels B, C, and D show example raster plots for w _{i → e} = 10, 20, and 30 μS/cm² respectively with $\overline{g_{Ks}}$ = 0 mS/cm²on top and $\overline{g_{Ks}}$ = 1 mS/cm² on bottom. In each, black markers represent spikes from excitatory cells and red markers represent those from inhibitory cells. Cells are sorted by spatial coordinate, a measure described in the methods section.