On the validity of electric brain signal predictions based on population firing rates
Fig 7
Example of LFP kernels, spike trains, and the resulting LFP signals.
A: The LFP kernels at different depths (see Fig 6A) with each single-cell kernel in gray and the population kernel in black. The kernels shown here are from the “default” case, corresponding to Fig 6C. B: Raster plot of uncorrelated spike trains (see Methods) with a firing rate of 10 s−1. Below the spikes, the population firing rate (constructed by summing all individual spike trains) is shown in black. C: The ground truth LFP signal (gray), the population kernel LFP signal (black), and the difference between them (red), at different depths. D: The relative error at different depths (see Methods), either observed from simulations (solid curve) or predicted from theory (dotted curve).