Complex auditory behaviour emerges from simple reactive steering
Complex auditory behaviour emerges from simple reactive steering
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DOI：
10.1038/nature02787
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发表时间：
2004-08-12
期刊：
影响因子：
64.8
通讯作者：
Poulet, JFA
中科院分区：
文献类型：
--
作者：
Hedwig, B;Poulet, JFA
声音信号的识别和定位是声学通信的基础（1，2）。复杂的神经机制被认为是处理物种特异性声音模式的基础，即使在具有简单听觉通路的动物中也是如此（3，4）。在雌性蟋蟀中，其朝向雄性的呼唤歌曲，目前的模型提出了基于歌曲的时间结构的模式识别机制（5-7）。此外，据认为，定位是通过比较左右识别网络的输出来实现的，然后将雌性引导到最接近物种特异性歌曲的模式（8-10）。在这里，我们表明，使用一种高度敏感的方法来测量女性蟋蟀的运动，当行走和飞行时，通信信号的每个声音脉冲都会释放出快速的转向反应。因此，听觉定向来自于对单个声音脉冲的反应性运动反应。虽然反应性运动反应不是基于歌曲结构，但模式识别过程可以在更长的时间尺度上调节反应的增益。这些发现与昆虫听觉行为的概念和生物启发机器人的发展有关，这些机器人执行类似蟋蟀的听觉定向（11-13）。
The recognition and localization of sound signals is fundamental to acoustic communication(1,2). Complex neural mechanisms are thought to underlie the processing of species-specific sound patterns even in animals with simple auditory pathways(3,4). In female crickets, which orient towards the male's calling song, current models propose pattern recognition mechanisms based on the temporal structure of the song(5-7). Furthermore, it is thought that localization is achieved by comparing the output of the left and right recognition networks, which then directs the female to the pattern that most closely resembles the species-specific song(8-10). Here we show, using a highly sensitive method for measuring the movements of female crickets, that when walking and flying each sound pulse of the communication signal releases a rapid steering response. Thus auditory orientation emerges from reactive motor responses to individual sound pulses. Although the reactive motor responses are not based on the song structure, a pattern recognition process may modulate the gain of the responses on a longer timescale. These findings are relevant to concepts of insect auditory behaviour and to the development of biologically inspired robots performing cricket-like auditory orientation(11-13).