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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Nat Neurosci. 2009 Dec 6;13(1):53–59. doi: 10.1038/nn.2444

Figure 7.

Figure 7

AHPs are able to hold intrinsic properties in states approximating those seen during rhythmic activity even in the absence of rhythmic inputs. a) MN30-Ib cell responses to 40 pA current injections at various times following a 20 sec train of rhythmic depolarizing stimuli (40 pA, 1Hz, 0.5 sec duration). Last two bursts of the train are shown at left. The delay to first spike at the end of the train persists for multiple seconds (asterisks) even though the cell is not being driven rhythmically. As Vm returns to rest, the delay to first spike is lost (arrowhead). b) Average delay to first spike in the 1st, 5th and 20th bursts of a train, followed by average delays at 2.5, 5, 10 sec after cessation of train. Asterisks indicate times at which delay to first spike is significantly longer than 1st burst (P < 0.05, One-way ANOVA, with Tukey HSD posthoc test). All pooled data are shown as mean ± SEM.