Fig. 5: Relationship between excitatory and inhibitory conductance and the slope of the population activity spectrum.
From: Can we infer excitation-inhibition balance from the spectrum of population activity?
Here we re-render the data shown in Fig. 3. Inhibition induced changes in the network state were reduced to four possibilities: increase or decrease in oscillations and increase or decrease in spectral slope. Thus, the network could move in four possible directions. These directions are rendered as arrows in the two panels as a function of average excitatory (y-axis) and inhibitory conductance (x-axis). A Inhibitory induced change in the network state when the network was operating in a non-oscillatory regime. B Same as in A but here the network was operating in an oscillatory regime. In both cases we did not find a clear trend between direction of the arrows and average excitation-inhibition.
