Department of Biology, Faculty of Science, Kyushu University, Fukuoka 812-8581, Japan.
J Insect Physiol. 2011 Jul;57(7):1010-6. doi: 10.1016/j.jinsphys.2011.04.018. Epub 2011 Apr 29.
The visual orienting behaviour towards prey in the free-moving mantis was investigated with a high-speed camera. The orienting behaviour consisted of head, prothorax, and abdomen rotations. Coordinated movements of these body parts in the horizontal plane were analysed frame-by-frame. Rotations of these body parts were initiated with no or slight (≤40 ms) differences in timing. The initiation timing of prothorax-abdomen rotation was affected by its initial angle before the onset of orienting. There were positive correlations in amplitude among head-prothorax, prothorax-abdomen, and abdomen rotations. The ratio of these rotations to total gaze rotation was affected by the initial prothorax-abdomen angle before the onset of orienting. Our data suggest that coordinated movements of the head, prothorax, and abdomen during orienting are ballistic events and are pre-determined according to visual and proprioceptive information before the onset of orienting.
利用高速摄像机研究了自由活动的螳螂对猎物的视觉定位行为。定向行为包括头部、前胸和腹部的旋转。对这些身体部位在水平面上的协调运动进行逐帧分析。这些身体部位的旋转以几乎同时（≤40ms）或轻微的时间差异开始。前胸-腹部旋转的起始时间受到定向开始前其初始角度的影响。头部-前胸、前胸-腹部和腹部旋转之间的振幅存在正相关关系。定向开始前的初始前胸-腹部角度会影响这些旋转与总注视旋转的比例。我们的数据表明，定向过程中头部、前胸和腹部的协调运动是弹道事件，根据定向开始前的视觉和本体感受信息预先确定。
