Rhythmic discharge of mitral cells in the carp olfactory bulb.

We examined conditions in which rhythmic discharges of the mitral cell are obtained in the carp olfactory bulb. When the mean firing rates of the responses to various concentrations of NaCl solutions were high (more than 5 Hz), rhythmic discharges appeared. Results provide experimental support for the rhythm generation hypothesis on the dendrodendritic synapse in the vertebrate olfactory bulb.