Fig. 6.

5-Hydroxytryptamine (5-HT) does not significantly alter evoked feed-forward inhibition onto granule cells. A: schematic of the recording configuration. B: mean evoked inhibitory postsynaptic currents (eIPSCs) from an example granule cell held at 0 mV in response to electrical stimulation of the mossy fibers. C–F: mean eIPSC amplitude, latency, paired-pulse ratio (PPR), and failure rate measured from individual granule cells (n = 18 granule cells). Solid lines reflect mean and SE across the population. n.s., statistically nonsignificant.