Figure 1.
Four classes of interneuron. A, Reconstruction of a representative synaptically connected CCK basket cell to PC pair; PC soma and dendrites shown in purple (axon not recovered), basket cell dendrites and soma in gray, and axon in black. Trace shows responses to 500 ms depolarizing current of double action potential threshold amplitude in the CCK BC. B, Example bistratified cell pair; dendrites and soma shown in gray, axons in blue, presynaptic soma to the left. Traces show responses to a 500 ms depolarizing current of double action potential threshold amplitude; presynaptic upper, postsynaptic lower trace. C, Example trilaminar cell pair; dendrites and soma shown in gray, axons in green, presynaptic soma to the upper left. Traces are as in B. D, Example PV basket cell pair; dendrites and soma shown in gray, axons in red, presynaptic soma right. Traces are as in B. All cells illustrated are in CA1 and were reconstructed from a single section.