An example of responses of neuron 9-1b. Recording was from the left bundle. The rotation angle of the acoustic chamber relative to the insect was 30°.
I -  oscillogram of the response, in which the spike amplitude is 68-77 mV;
II - histogram showing the distribution of spikes in time, using 70 stimulus presentations, channel width of 2 msec;
S, V, and a are plots of displacement, speed, and acceleration respectively of the air flow.