Cruse H, Warnecke H
Department of Biological Cybernetics, Faculty of Biology, University of Bielefeld, Federal Republic of Germany.
Exp Brain Res. 1992;89(1):147-56. doi: 10.1007/BF00229012.
On the basis of behavioural studies the influences that coordinate the movement of the legs of a slowly walking cat have been investigated. The recording method applied here allows for the measurement of forward and backward movement of the legs which are called swing and stance movements, respectively. Influences between contralateral legs, i.e. both front legs or both hind legs, are stronger than those occurring between ipsilateral legs, i.e. front and hind leg of the same side. Influences which coordinate the front legs seem to be of the same kind as those for the hind legs. These influences are symmetrical, which means that the same type of influence acts from right to left leg and in the reverse direction. Two types of influences are described for contralateral legs: 1. When the influencing leg performs a swing movement, the influenced leg is prevented from starting a swing movement. 2. When the influencing leg performs a stance movement, the probability that the influenced leg starts a swing movement increases as the influencing leg moves backwards during its stance movement. In contrast to contralateral coupling, the ipsilateral influences are symmetric, i.e. a different influence acts from front to hind leg than does in the reverse direction. The front leg is influenced to start a swing when both legs have approached each other to a given value. The hind leg is influenced to start a stance movement after the front leg has begun its swing.
基于行为学研究，对协调缓慢行走的猫腿部运动的影响因素进行了研究。这里应用的记录方法能够测量腿部的向前和向后运动，分别称为摆动运动和支撑运动。对侧腿（即两条前腿或两条后腿）之间的影响比同侧腿（即同一侧的前腿和后腿）之间的影响更强。协调前腿的影响因素似乎与协调后腿的影响因素属于同一类型。这些影响是对称的，这意味着相同类型的影响从右腿作用到左腿，反之亦然。对侧腿的影响描述为两种类型：1. 当影响腿进行摆动运动时，受影响的腿被阻止开始摆动运动。2. 当影响腿进行支撑运动时，随着影响腿在支撑运动中向后移动，受影响的腿开始摆动运动的概率增加。与对侧耦合不同，同侧影响是不对称的，即从前腿到后腿的影响与相反方向的影响不同。当两条腿彼此靠近到给定值时，前腿受到影响开始摆动。在前腿开始摆动后，后腿受到影响开始支撑运动。
