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. Author manuscript; available in PMC: 2019 Sep 19.
Published in final edited form as: Neuron. 2018 Aug 30;99(6):1289–1301.e2. doi: 10.1016/j.neuron.2018.08.008

Figure 4: Role of excitation and inhibition in generating Vm correlations during quiet wakefulness and locomotion.

Figure 4:

(A) Simultaneous current clamp recording (black), voltage clamp recording, and speed trace (red) during quiet wakefulness. Voltage-clamped cell is being held at the reversal potential for inhibition (left, gray) or excitation (right, cyan).

(B) Difference in current between the “up” and “down” phases of fluctuations during quiet wakefulness for excitation (gray) and inhibition (cyan).

(C) Mean CCGs for excitation/Vm (gray) and inhibition/Vm (cyan). Inset, expanded timescale.

(D) Histogram of median lags from excitation/Vm CCGs (gray) and inhibition/Vm CCGs (cyan) across all pairs (n = 7). Arrows denote the peak in the histograms. The x-axis is time relative to the peak of the excitation/Vm histogram.

(E) As in (A) for moving epochs. (F) Variance in excitatory (gray) and inhibitory (cyan) currents is plotted for moving vs. stationary epochs. *, p < 0.05.

See also Figure S1.