Fig. 6.

Interneurons with comparable morphology may show differences in their sIPSC kinetics. A, A bistratified cell gave rise to both axons and dendrites to strata radiatum and oriens avoiding str. lacunosum-moleculare. The main axon originated from a secondary dendrite. B, A cell with the soma and with the majority of the dendrites in str. oriens had axon collaterals mainly in str. radiatum, where two dendritic branches were also found. Note the two main axon collaterals left the slice in the str. oriens. (For a detailed morphological description, see Results)C–E, The average sIPSCs of these cells (C for bistratified cell and D for the cell in B) were remarkably distinct in amplitudes and decays, more visible after normalization and superimposition (E). F, The cumulative probability distributions of amplitudes, 10–90% rise times, and T50% of these interneurons differed significantly (K–S p < 10⁻⁴; solid lines represent the bistratified cell; dashed lines represent the other cell). For abbreviations, see legend to Figure 1. Scale bars:A, B, 100 μm.