螽斯趋声行为的定量分析表明,螽斯具有良好的方向听觉能力。本文报道了螽斯前胸神经节内听觉上升神经元的结构、侧向性和方向灵敏度。在最佳频率15kHz时,它的侧向阈值差高达约16dB。它的方向灵敏度与声刺激频率密切有关,频率愈高,其方位阈值差愈大。上升神经元对每次刺激的峰脉冲发放数和潜伏期变化均与声音入射角有关,因此可用作声源的方向提示。 Quantitative analysis of 趋 Si-tonic behavior shows 螽 Si has good directional hearing ability. This paper reports the structural, lateral and directional sensitivities of auditory ascending neurons in   anterior thoracic ganglia. Its lateral threshold difference is up to about 16dB at the optimum frequency of 15kHz. Its direction sensitivity is closely related to the frequency of acoustic stimulation. The higher the frequency, the greater the threshold difference in orientation. Ascendant neurons on each stimulus peak pulse number and latency changes are related to the angle of incidence of the sound, it can be used as a sound source direction prompts.