Cruse H, Schmitz J, Braun U, Schweins A. Control of body height in a stick insect walking on a treadwheel. The Journal of Experimental Biology . 1993;181(1):141-155. ; The properties of the system that controls the distance between body and ground was investigated in the stick insect Carausius morosus. The insect walked on a lightweight double treadwheel under open-loop or closed-loop conditions. The open-loop investigations show that the dynamic behaviour of the height-control system in the walking animal can be described in terms of a simple proportional system with negligible dynamic properties, and it is therefore much simpler than the height-control system in the standing animal. Under open-loop conditions, we found no coupling between contralateral or ipsilateral legs. This agrees with the findings on standing animals. The force-height characteristic shows two ranges, in each of which the system exhibits a linear relationship but a different slope. Under closed-loop conditions, the force-height characteristic shows the same two linear ranges, but the slopes are greater than under open-loop conditions. Because the height controller of each leg can be considered to act like a spring, this result means that under closed-loop conditions the controller is stiffer than it is under open-loop conditions.


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    Titel :

    Control of body height in a stick insect walking on a treadwheel


    Beteiligte:
    Cruse, Holk (Autor:in) / Schmitz, Josef (Autor:in) / Braun, U. (Autor:in) / Schweins, A. (Autor:in)

    Erscheinungsdatum :

    1993-01-01


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Klassifikation :

    DDC:    570 / 629




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