The organization of escape behaviour in the crayfish.
The organization of escape behaviour in the crayfish.
复制标题
小龙虾逃跑行为的组织。
DOI：
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发表时间：
1972
影响因子：
2.8
通讯作者：
F. Krasne
中科院分区：
文献类型：
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作者：
J. Wine;F. Krasne
1.长期植入神经索电极的自由活动的动物的逃避行为的检查澄清了巨大的纤维的正常功能和逃避行为的一般组织在小龙虾。2.巨纤维几乎只对突然的刺激做出反应;它们在很短的潜伏期内做出反应;它们产生相当刻板的动作。某些视觉刺激，如快速接近的物体和吻侧触觉刺激，如敲击前甲壳或触角，激发内侧巨人;尾部刺激，如敲击腹部，激发外侧巨人。在自由的动物中，即使是非常微弱的刺激也常常使巨人兴奋。3.自发的甩尾和对渐进刺激的反应是由非巨系统介导的。当镧能被有意义地测量时，它们至少比巨纤维反应大一个数量级。视觉刺激，如伸手去抓动物或走过它的水族馆，以及身体刺激，如捏，甚至切割，通常会激发这些系统。4.动物通常通过一系列的甩尾（游泳）逃跑。当他们这样做时，序列的第一个翻转如上所述确定，但随后的翻转几乎总是由非巨系统介导的。游泳和延迟（即非巨大）逃逸都涉及各种阶段性腹部运动。5.动物的神经索被切断在不同水平的实验表明，非巨大的逃逸起源于或强烈促进了食管下神经节复合体。
1. Examination of escape behaviour in freely moving animals with chronically implanted nerve cord electrodes has clarified the normal function of the giant fibres and the general organization of escape behaviour in the crayfish. 2. The giant fibres react almost exclusively to sudden stimuli; they do so at very short latency; and they produce rather stereotyped actions. Certain visual stimuli such as very rapidly approaching objects and rostral tactile stimuli such as taps to the anterior carapace or antennae fire the medial giants; caudal stimuli such as taps to the abdomen fire the lateral giants. In free animals even very weak stimuli often excite the giants. 3. Spontaneous tail flips and responses to more gradual stimuli are mediated by non-giant systems. When latencies can be meaningfully measured, they are at least an order of magnitude greater than those of giant-fibre reactions. Visual stimuli such as reaching for an animal or walking past its aquarium and somatic stimuli such as pinching or even cutting typically excite these systems. 4. Animals commonly escape with a sequence of tail flips (swimming). When they do this, the first flip of the sequence is determined as above, but subsequent flips are almost always mediated by non-giant systems. Both swimming and delayed (i.e. non-giant) escape involve a variety of phasic abdominal movements. 5. Experiments with animals whose nerve cords were cut at various levels indicate that non-giant escape either originates in or is strongly facilitated by the suboesophageal ganglion complex.