Wind spectra and the response of the cercal system in the cockroach |
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| Authors: | Rinberg D. Davidowitz H. |
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| Affiliation: | (1) NEC Research Institute, 4 Independence Way, Princeton, NJ 08540-6634, USA;(2) Monell Chemical Senses Center, 3500 Market Str., Philadelphia, PA 19104, USA;(3) Pharmaseq, Suite F, 1 Deer Park Dr., Monmouth Junction, NJ 08852, USA |
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| Abstract: | Experiments on the cercal wind-sensing system of the American cockroach, Periplaneta americana, showed that the firing rate of the interneurons coding wind information depends on the bandwidth of random noise wind stimuli. The firing rate was shown to increase with decreases in the stimulus bandwidth, and be independent of changes in the total power of the stimulus with constant spectral composition. A detailed analysis of ethologically relevant stimulus parameters is presented. A phenomenological model of these relationships and their relevance to wind-mediated cockroach behavior is proposed.Abbreviations 2D two dimensional - FOWD fiber-optic wind detector - GI giant interneurons - STA spike-triggered average |
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| Keywords: | Cercal system Escape behavior Periplaneta americana Stimulus spectra Turbulence |
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