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. 2006 Nov 8;26(45):11709–11719. doi: 10.1523/JNEUROSCI.3371-06.2006

Figure 6.

Figure 6.

Granule cell activation has low probability but high reliability. A1, B1, Averages of ΔF/F map for 10 trials each for granule cell population activity in response to glomerular stimulation under normal conditions (A1) and 10 mm 4-AP (B1), showing low probability of granule cell activation for glomerular stimulation. A2, B2, Calcium transients for four successive trials for five of the cells shown in A1, under normal conditions (A2) and for 10 mm 4-AP (B2). The probability of granule cell activation is low but activation latencies are reliable trial to trial. B3. Blocking of A-current by 4-AP increases the reliability of granule cells. C, Plot showing the reliability in granule cell latencies (24 randomly chosen cells to depict the entire range of activation latencies). D, Current recordings (5 selected) from a mitral cell (voltage clamped at −40 mV) in response to glomerular stimulation showing IPSCs with same latencies across trials. E, Histogram showing pairwise correlation for 50 consecutive current recordings from a mitral cell (solid line) and the same for 50 simulated trials (dotted line), showing higher correlation for IPSCs across trials than expected by chance. F, Plot showing higher average correlation for IPSCs recorded in five different mitral cells than the simulated trials.