ELECTRICAL ACTIVITY IN THE CHEMORECEPTORS OF THE BLOWFLY .1. RESPONSES TO CHEMICAL AND MECHANICAL STIMULATION
ELECTRICAL ACTIVITY IN THE CHEMORECEPTORS OF THE BLOWFLY .1. RESPONSES TO CHEMICAL AND MECHANICAL STIMULATION
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DOI：
10.1085/jgp.42.2.393
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发表时间：
1958-01-01
影响因子：
3.8
通讯作者：
DETHIER, VG
中科院分区：
文献类型：
--
作者：
WOLBARSHT, ML;DETHIER, VG
研究了1441[1959]神经系统17806-17814神经元在化学和机械刺激下的电反应，这些神经元与吹蝇（Phormia regina Meigen）的各种化学感觉毛发有关。产卵器、上颌触须和触须上受单一神经支配的化学感觉毛对化学刺激反应强烈，但对机械刺激没有反应。唇、跗骨和翅膀上的三重神经化学感觉毛有两个神经元，它们只对化学刺激作出反应。第三个神经元只对机械刺激有反应。在去除毛发后，两个化学感觉神经元对各种化学刺激的不同反应表明，负责化学感受的结构位于这些神经元的远端突起。第三个神经元对机械刺激的反应类似于与一种触觉毛发相关的神经元记录的反应，这种毛发对运动有反应，而不是对稳定的变形有反应。用剪下来的头发作为微移液管的延伸，对与纯触觉毛发相关的神经元进行了记录。翅膀化学感觉毛发的机械感觉神经元能够以每秒至少600次脉冲的速度做出反应，并可能用于指示飞行过程中机翼表面气流的变化，从而使苍蝇能够纠正机翼弯曲度和攻角。
The electrical responses of the 1441[1959] NERVOUS SYSTEM 17806-17814 neurons associated with the various types of chemosensory hairs of the blowfly, Phormia regina Meigen, following stimulation by chemical and mechanical means have been studied. The singly innervated chemosensory hairs on the ovipositor, maxillary palpi, and antennae respond vigorously to chemical stimulation, but not to mechanical stimulation. The triply innervated chemosensory hairs on the labellum, tarsus, and wing have two neurons which respond only to chemical stimuli. The third neuron responds only to mechanical stimulation. The differential responses of the two chemosensory neurons to various chemical stimuli following the removal of the tip of the hair suggest that the structures responsible for chemoreception are located throughout the distal processes of these neurons. The response of the third neuron to mechanical stimulation is similar to the response recorded from the neuron associated with one type of tactile hair which responds to motion and not to steady deformation. Recordings have been made from the neurons associated with purely tactile hairs using the cut hair as an extension of the micropipette. The mechanosensory neuron of the wing chemosensory hair is capable of responding at the rate of at least 600 impulses per second and may serve to indicate changes in air flow over the wing surfaces during flight to enable the fly to correct the wing camber and attack angle.