The mechanoreceptive system of prey localization inNotonecta
The mechanoreceptive system of prey localization inNotonecta
复制标题
诺托内克达猎物定位的机械感受系统
DOI：
--
复制
发表时间：
1974
期刊：
影响因子：
--
通讯作者：
K. Wiese
中科院分区：
文献类型：
--
作者：
K. Wiese
Summary1。通过计算局部受限交变磁场的相移来模拟波信号，影响粘在Notonecta前腿和中腿爪子上的铁屑，诱导动物执行猎物定位行为。模拟的波信号与动物纵轴呈20和30度角时，所引起的转向反应大小与模拟程序相匹配（α = 20°：xα′= 19.2°；n = 49;s = 5,5°；α = 30°：xxα′= 30.8°；n = 78;s = 8.5°）。这些条件下的定位误差与自然刺激后的定位误差相似。3 .单独刺激前腿诱发的定位旋转远比仅由中胸腿诱发的定位旋转不准确（FL: α = 30°：xα′= 32,2°；n = 37;s =11,2°；ML: α = 30°：xα′= 30,3°；n = 48;s = 5,8°）。水表面波的频散现象导致刺激相图随波信号频率含量的不同而不同。然而，这些差异比通常显示的定位误差要小，因此对该定位系统没有重大影响。实验表明，4-6受体系统各感觉器官的刺激相位控制是脑背突在额叶范围内高度精确定向的基本原理。
Summary1.Simulation of wave signals by calculated phase-shifting of locally restricted, alternating magnetic fields which affected iron filings glued to claws of front- and middlelegs of Notonecta induced the animals to perform prey localization behaviour.2.Simulation of wave signals approaching at 20 and 30 degree angle to the animals longitudinal axis evoked turning reactions in size well matching the program of simulation (α = 20 °:xα′ = 19,2 °;n = 49;s = 5,5 °; α = 30 °:xxα′ = 30,8 °;n = 78;s = 8,5 °). The localization errors under these conditions were similar to those obtained after natural stimuli.3.Stimulation of the front legs exclusively evoked localization turns which are far more inaccurate than turns induced only by the mesothoracic legs (FL: α = 30 °:xα′ = 33,2 °;n = 37;s =11,2 °; ML: α = 30 °: xα′ = 30,3 °;n = 48;s = 5,8 °).4.The phenomenon of dispersion observed in water surface waves results in differencies of stimulus phase pattern depending on the frequency content of the wave signal. These differencies however are smaller than the generally shown localization errors and have therefore no maior influence on this system of orientation.5.The experiments suggest that stimulus phase control in each sense organ of the 4–6 receptor system is the basic principle of the highly accurate orientation ofNotonecta in the frontal range.