Skip to main content
. Author manuscript; available in PMC: 2021 Oct 15.
Published in final edited form as: Cell. 2020 Oct 15;183(2):537–548.e12. doi: 10.1016/j.cell.2020.09.019

Figure 4. Heterogeneity of membrane potential rise times is insufficient to explain HVC network dynamics.

Figure 4.

(A) Membrane potential of an HVC(RA) neuron recorded intracellularly during three song trials. Arrow: Burst onset time. (B) Average membrane potential (in black) preceding burst onsets (shaded region in (A)) with exponential fit (τ = 2.5 ms). (C) Exponential fits to the membrane potential preceding bursts in 11 intracellularly recorded HVC(RA) neurons. (D) Power spectral analysis for models with varying levels of heterogeneity in membrane potential rise times before burst onsets. Models to the left of the vertical line produce network sequences with synchronous groups of neurons that are incompatible with HVC population recordings (p < 0.05, bootstrap, see Methods).