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Vibration sensitive hairs on the spider leg

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Summary

Electrophysiological recordings from neurons in the spider central nervous system showed hair sensilla at the metatarsus-tarsus joint to be another, so far unknown source of sensitivity to tarsal vibration. The central neurons were most sensitive to vibration frequencies of 70 Hz and 150 Hz. Their absolute threshold sensitivity was lower than that of the most sensitive vibration receptor of spiders, the metatarsal lyriform organ, by at least two powers of ten.

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References

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Authors and Affiliations

  1. Zoologisches Institut, Gruppe Sinnesphysiologie, Johann Wolfgang Goethe-Universität, Siesmayerstr. 70, D-6000, Frankfurt am Main, Germany

    J. Speck-Hergenröder & F. G. Barth

  2. Institut für Zoologie, Universität Wien, Althanstr. 14, A-1090, Wien, Austria

    F. G. Barth

Authors
  1. J. Speck-Hergenröder
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  2. F. G. Barth
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Additional information

Acknowledgement. We thank the Deutsche Forschungsgemeinschaft for support of this study (SFB 45/A4 to F.G.B.), E. A. Seyfarth for providing fig. 2a and reading an early version of the manuscript, and Mrs H. Hahn and Mrs H. Grillitsch for help with the preparation of the figures.

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Speck-Hergenröder, J., Barth, F.G. Vibration sensitive hairs on the spider leg. Experientia 44, 13–14 (1988). https://doi.org/10.1007/BF01960224

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  • DOI: https://doi.org/10.1007/BF01960224

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