Fig. 10: Age-dependent changes in intrinsic excitability of RAPNs in female and male zebra finches.
From: Resurgent Na+ currents promote ultrafast spiking in projection neurons that drive fine motor control
a–c Left: Representative AP trains elicited by a +500 pA current injection in RAPNs in males (First 10 APs; black; same as in Fig. 6d–f, left) and females (red) across ages (days post hatch, dph). Right: APs #1, 2, and 16–21 from the traces on the left aligned at the peaks for each age group in females. d–f Phase plane plots from APs #1, 2, and 16–21 plotted at the same scale for all age groups for females (left) and males (right; same as in Fig. 6d–f, right). g–i 3D dot plots showing the instantaneous firing frequency (Inst. Firing Freq.), number of spikes per second (Spikes/sec), and the fold-change in maximum depolarization rate (Max. Depol. Ratio; arbitrary units, arb. units) between the 2nd and 1st APs during a 1 s +500 pA current injection in male (black) and female (red) RAPNs. N (cells/age) = 21/20 dph, 23/35 dph, and 7/50 dph females. Refer to Fig. 6 for male data.
