
Fig. 8. Responses of a type I medial octavolateralis nucleus (MON) unit to a 50 Hz
vibrating sphere stimulus in still (left) and running (15.5 cm s-1;
right) water. Raster plots and level-response functions are as in
Fig. 4. Displacement amplitudes
were 2720, 1660 and 560 µm. In still water, this unit responded to the
vibrating sphere with an increase in discharge rate. Ongoing discharge rates
in still and running water were comparable. Nevertheless, the response to the
vibrating sphere was masked both in terms of spike rate and
phase-coupling.