A comprehensive investigation of intracortical and corticothalamic models of the alpha rhythm
Fig 10
Frequency of oscillation parameter spaces as a function of E-I connectivities.
(A) Schematic of the models with their principal E-I loop highlighted. These are the parameters that are going to be varied. (B1 and B2) Time series and corresponding power spectra for specific combinations of E-I, showing different dynamics. (C) Heatmaps presenting the dominant frequency of oscillation as a function of E-I connectivity. The dark region presents non-oscillatory or non-physiological time series. JR and LW have a clearly defined regime of lower frequency of oscillations being generated (purple and red region), whereas RRW quickly tends to produce signals of lower amplitude, or higher frequency of oscillations. In RRW, the dark blue regime indicates that the system is still oscillating but at a higher amplitude and higher frequency as the system is starting to explode. In the light blue regime, the dominant frequency of oscillation is in the beta regime. In the three models, white or orange areas correspond to alpha or higher oscillations.