Kühne R, Lewis B, Klaus K
Fachbereich Biologie, Philipps-Universität, D-3550 Marburg Federal Republic of Germany.
Behav Processes. 1980 Apr;5(1):55-74. doi: 10.1016/0376-6357(80)90049-2.
The real time analysis of the song of D. verrucivorus recorded in the sun and shade shows that changes occur predominantly in the time parameters and not in the frequency content. Single unit recordings in the ventral nerve cord of D. verrucivorus show that all the acoustic units respond to both sound and vibration. However, on the basis of their response characteristics they may be classified as vibration (V), vibration and sound (VS) and sound (S) neurons. The responses of some of the units depend upon the degree of habituation. Single parameter processing was not observed; the characteristic frequencies of these units range across the whole of the frequency band investigated, and distinct intensity response fields were observed. Some of the V neurons were more sensitive than the receptors, and some units responded well to the species song when both sound and vibration were presented simultaneously. The source of the vibratory input is shown to be predominantly from the ipsilateral foreleg. Many of the units run together in an 'acoustic bundle'; some run through fibres, passing from the posterior thoracic ganglia to the cervical connectives. In many cases the primary fibres projecting to these central units can be predicted from their response characteristics. An hypothesis of the mechanisms underlying conspecific song recognition at the ventral cord level is presented.
对在阳光下和阴凉处记录的疣背鼓蛙鸣声的实时分析表明，变化主要发生在时间参数上，而非频率成分。对疣背鼓蛙腹神经索的单神经元记录显示，所有听觉单元对声音和振动都有反应。然而，根据它们的反应特性，可将其分为振动（V）、振动和声音（VS）以及声音（S）神经元。一些单元的反应取决于习惯化程度。未观察到单参数处理；这些单元的特征频率涵盖了整个研究频段，并且观察到了明显的强度反应场。一些V神经元比感受器更敏感，当声音和振动同时出现时，一些单元对该物种的鸣声反应良好。振动输入的来源主要显示为同侧前腿。许多单元在一个“听觉束”中共同运行；一些单元通过纤维，从后胸神经节延伸至颈神经连索。在许多情况下，可根据其反应特性预测投射到这些中枢单元的初级纤维。本文提出了腹神经索水平上同种鸣声识别潜在机制的假说。
