Die Informationsverarbeitung tympanaler Rezeptorelemente vonLocusta migratoria (Acrididae, Orthoptera)
Die Informationsverarbeitung tympanaler Rezeptorelemente vonLocusta migratoria (Acrididae, Orthoptera)
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Die Informationsverarbeitung tympanaler Rezeptorelemente von Locusta migratoria（蝗科，直翅目）
DOI：
10.1007/bf00663438
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
H. Römer
中科院分区：
文献类型：
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作者：
H. Römer
Summary1。用玻璃微电极在胸后神经节记录了迁徙蝗鼓室神经纤维的反应。这些单元根据频率、强度和方向特征以及它们的响应模式进行分类。比较了该物种对特定鸣声的反应与对phippiger鸣声的反应。这些生理特性将神经元分为三种低频神经元（特征频率3.5-4 kHz; 4kHz; 5.5-6 kHz）和一种高频神经元（12-20 kHz）。这与其他物种相似（Gray, 1960, Michelsen, 1971）。强度编码是通过急剧上升的强度特征和不同的单元绝对阈值来完成的。在低频和高频单元之间存在明显的方向灵敏度差异。在低频范围内，鼓室器官似乎作为压力梯度接收器作出反应；对于高频率，讨论了另一种机制。在受体细胞的水平上，没有对特定物种的歌声进行过滤。
Summary1.The reactions of tympanic nerve fibers ofLocusta migratoria were recorded by glass microelectrodes in the metathoracic ganglion.2.The units were classified by frequency-, intensity-, and directional characteristics as well as by their response pattern. The response to speciesspecific song is compared with the response to song ofEphippiger ephippiger.3.The physiological properties lead to a classification into three types of low-frequency neurons (characteristic frequency 3.5–4 kHz; 4kHz; 5.5–6 kHz) and one type of high-frequency neuron (12–20 kHz). This is similar to other species (Gray, 1960, Michelsen, 1971).4.Intensity-coding is done by sharp rising intensity characteristics and by different absolute thresholds of the units.5.There is a marked directional sensitivity with some differences between LF and HF units. In the low frequency range the tympanal organ seems to react as a pressure gradient receiver; for high frequencies another mechanism is discussed.6.No filtering of species-specific song takes place at the level of the receptor cells.