The visual cortex produces gamma band echo in response to broadband visual flicker
Fig 6
(A) The PSD with spectral peak at 48 Hz for input currents IE = 12.25 μA and II = 5.25 μA. (B, C) Power at the spectral peak (B) and corresponding frequency (C) of the network oscillations as a function of input current to E-cells and I-cells. Black, red, and blue circles indicate pairs of the currents producing oscillations at 48 Hz. (D) Spiking activity and corresponding average membrane potentials for three selected input currents that produce oscillations at 48 Hz.