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  • Title: Calling song signals and temporal preference functions in the cricket Teleogryllus leo.
    Author: Rothbart MM, Hennig RM.
    Journal: J Comp Physiol A Neuroethol Sens Neural Behav Physiol; 2012 Nov; 198(11):817-25. PubMed ID: 22945775.
    Abstract:
    The acoustic display of many cricket species consists of trains of pulses (chirps) with intermittent pauses. Here, we investigated the temporal cues that females of the cricket Teleogryllus leo used to detect a pulse and a chirp pattern on two different time scales. For both patterns, females accepted a wide range of combinations that covered the respective pulse and chirp parameters in the songs of males. In tests with a continuous series of pulses at different modulation frequencies, the transfer function of pattern discrimination was also determined. Females exhibited two ranges of high response scores indicating two temporal filters with an inhibitory interaction. For the modulation frequency of the pulse pattern, the peak of the preference function was rather sharply tuned and at a lower pulse rate than produced by males. These results show that the combined output of both filters did not increase selectivity, but rather enlarged the accepted range of signals.
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