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声音是动物交往常用的信息载体之一。动物发出的声音不仅用于种内通信,而且还有报警或攻击的作用。动物听觉必须解决的三个基本问题是:频率选择,模式识别和声方位检测。本文利用细胞内电生理记录与单细胞标记技术,揭示了螽斯初级听觉神经元声反应的频率选择特性:每个神经元具有各自特有的最佳反应频率和调谐曲线。初级听神经元轴突在前胸神经节的中枢投射为单侧的、非跨神经节的,与它们的最佳反应频率有一定的对应关系。讨论了螽斯种声识别过程中频率分析的神经机理。
Sound is one of the most commonly used information carriers in animal interaction. The sounds made by animals are not only used for intraspecific communication, but also serve as an alarm or attack. Three basic issues that animal hearing must address are frequency selection, pattern recognition, and acoustic orientation detection. In this paper, we use intracellular electrophysiological recording and single cell labeling technology to reveal the frequency selective characteristics of acoustic responses of 初 初 primary auditory neurons: each neuron has its own unique optimal response frequency and tuning curve. Primary auditory neuron axons project into the unilateral, non-transganglionic ganglia in the central region of the anterior thoracic ganglion with a corresponding relationship to their optimal response frequency. Discusses the neural mechanism of frequency analysis in 种s species recognition.