Figure 4.
β/γ fluctuations in the neuronal membrane voltage were also less sensitive than LFPs. A, Sample traces of simultaneously recorded LFP and neighboring intracellular membrane potential. B, For this neuron, the power spectra of up states (red) and down states (blue) differed significantly in the β band. C, In the population of 10 neurons analyzed, this difference was not significant. For the same population of recordings, LFP power spectra did differ significantly (Fig. 3C, left). Shades indicate 95% CI.