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首页> 外文期刊>Journal of Comparative Physiology, A. Sensory, Neural, and Behavioral Physiology >Mechanisms of stick insect locomotion in a gap-crossing paradigm
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Mechanisms of stick insect locomotion in a gap-crossing paradigm

机译：跨越式范式中条虫运动的机理

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Locomotion of stick insects climbing over gaps of more than twice their step length has proved to be a useful paradigm to investigate how locomotor behaviour is adapted to external conditions. In this study, swing amplitudes and extreme positions of single steps from gap-crossing sequences have been analysed and compared to corresponding parameters of undisturbed walking. We show that adaptations of the basic mechanisms concern movements of single legs as well as the coordination between the legs. Slowing down of stance velocity, searching movements of legs in protraction and the generation of short steps are crucial prerequisites in the gap-crossing task. The rules of leg coordination described for stick insect walking seem to be modified, and load on the supporting legs is assumed to have a major effect on coordination especially in slow walking. Stepping into the gap with a front leg and antennal contact with the far edge of the gap provide information, as both events influence the following leg movements, whereas antennal "non-contact" seems not to contain information. Integration of these results into the model of the walking controller can improve our understanding of insect locomotion in highly irregular environments. [References: 35]
机译：棒状昆虫的运动越过其步长的两倍以上的间隙已被证明是研究运动行为如何适应外部条件的有用范例。在这项研究中，分析了跨过间隙序列的单步摆动幅度和极限位置，并将其与无干扰步行的相应参数进行了比较。我们表明基本机制的适应性涉及单腿的运动以及双腿之间的协调。站姿速度的减慢，在伸展过程中寻找腿部的运动以及产生短步是跨越间隙任务的关键前提。粘虫行走中描述的腿部协调规则似乎已被修改，支撑腿上的负载被认为对协调性有重要影响，尤其是在慢速行走时。前腿进入间隙并与间隙的远端接触时会提供信息，因为这两个事件都会影响随后的腿部运动，而触角“非接触”似乎不包含信息。将这些结果集成到行走控制器的模型中可以提高我们对高度不规则环境中昆虫运动的理解。 [参考：35]

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