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Ein auf Substratvibration reagierendes Interneuron im Bauchmark der Grille

An interneuron in the ventral cord of the cricket which responds to substratum vibration

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Summary

By extracellular recording from the neck connectives of free moving crickets potentials of large fibres can be obtained, which respond to substratum vibration. The most sensitive fibres which seem to be connected to the subgenual organs show an adaptation which can be modified by central or peripheral factors. The sensitivity of one fibre which was tested with a vibration platform of adjustable frequency and amplitude has a threshold of 0.2 to 0.3 cm/sec2 of acceleration at a frequency of 500 Hz (Fig. 4). These data correspond with the results of threshold measurements on the subgenual organs made by Autrum and Schneider (1948).

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Literatur

  • Autrum, H.: Über Gehör und Erschütterungssinn bei Locustiden. Z. vergl. Physiol. 28, 580–637 (1941).

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  • —, Schneider, W.: Vergleichende Untersuchungen über den Erschütterungssinn der Insekten. Z. vergl. Physiol. 31, 77–88 (1948).

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  • Markl, H.: Verständigung durch Vibrationssignale bei Arthropoden. Naturwissenschaften 56, 499–505 (1969).

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Authors and Affiliations

  1. Zoologisches Institut der Universität zu Köln, Lehrstuhl für Tierphysiologie, Deutschland

    Martin Dambach

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  1. Martin Dambach
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Additional information

Die Untersuchungen wurden unterstützt durch Mittel der Deutschen Forschungsgemeinschaft, die Herrn Prof. Dr. F. Huber zur Verfügung standen.

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Dambach, M. Ein auf Substratvibration reagierendes Interneuron im Bauchmark der Grille. Z. Vergl. Physiol. 70, 57–61 (1970). https://doi.org/10.1007/BF00299537

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  • DOI: https://doi.org/10.1007/BF00299537

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