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Figure 1


Fig. 1. Examples of positive and negative phonotactic steering responses in crickets. Traces reflect abdominal position; upward deflections indicate movements to the right. (A) Response to a model of the species' calling song, broadcast from the cricket's right at 60 dB SPL (indicated by horizontal bar). The broken line indicates the threshold level for detection of a response (mean +4 s.d. of pre-stimulus position). (B) Response of the same cricket to a single, 30 kHz pulse (indicated by the horizontal bar above the trace) presented from the right at 80 dB SPL. The broken line shows mean pre-stimulus position –4 s.d. Note the difference in time scale from A.