FIG. 2.

IHC action potentials drive spontaneous firing in SGNs in the pre-hearing ear. A Simultaneous recordings from an IHC (whole cell, blue trace) and corresponding postsynaptic SGN (extracellular recording, black trace) in a pre-hearing rat. IHC resting potential −80 mV, stimulated with a 40 pA current injection to initiate firing. The dashed red box is shown in more detail (B) showing that each IHC action potential initiates several action potentials in the SGN. Adapted by permission from Macmillan Publishers Ltd: Nature Neuroscience (Tritsch et al. 2010), copyright (2010).