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. 2015 Jan 7;35(1):299–307. doi: 10.1523/JNEUROSCI.3698-14.2015

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Copyright © 2015 the authors 0270-6474/15/350299-09$15.00/0

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Figure 2. — Song-related intracellular activity of HVC projection neurons. A, B, Membrane potential of an HVC_(RA) neuron (A) and an HVC_(X) neuron (B) during the production of three repetitions of a song motif (sonogram frequency: 0.5–7.5 kHz). C, D, Number of bursts per motif (left) and the jitter of burst events in relation to the song (right) as observed in HVC_(RA) neurons (C) and HVC_(X) neurons (D). E, F, Normalized distribution of PSP amplitudes and the mean frequency of these events in HVC_(RA) neurons (E) and HVC_(X) neurons (F). G, H, Subthreshold cross-correlation coefficient extracted from HVC_(RA) neuron (G) and HVC_(X) neuron (H) activity during singing (shaded region = 95% confidence interval).