Fig. 9. (Ai,ii) Respective responses from a Type I-like interneuron to different stimulus routines, shown below each electrical trace. Responses to the odorant stimulus were doubled when it occurred prior to the water pulse. (B) Bar graphs documenting the potentiation of the neuronal response to two concentrations of odorant with different routines of hydrodynamic and/or odorant stimuli. Odorant pulses were 2 s in length. See text for further details.