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. Author manuscript; available in PMC: 2022 Jul 15.
Published in final edited form as: J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2015 Mar 13;201(5):485–503. doi: 10.1007/s00359-015-0997-4

Fig. 3.

Fig. 3

Extracellularly recorded responses of an interval-counting neuron in H. versicolor. a Average spike count per presentation of stimuli that differed in pulse rate and pulse shape (20 % rise:80 % fall, closed circles, or 80 % rise:20 % fall, open circles); stimulus amplitude was either 60 dB SPL (grey lines) or 78 dB SPL (black lines). b Peri-stimulus-time histograms (PSTHs) and raster plots of spikes in response to stimuli that consisted of fast-rise pulses (20 %) and were presented at 10 or 15 pulses/s, with 50 % duty cycle; stimulus amplitude was either 60 dB SPL (upper two panels) or 72 dB SPL (lower panel). c PSTHs and raster plots of responses to stimuli that consisted of 2, 3 or 4 pulses, repeated with intervals of 75 ms (15 pulses/s), upper 3 panels; with 75 ms intervals, 3 pulses were required to elicit spikes on at least 50 % of the stimulus presentations. Bottom panel shows the effects of increasing the duration of the middle interval to 125 ms (grey) or 150 ms (black). Carrier frequency (BEF) = 280 Hz