Sequential Filtering Processes Shape Feature Detection in Crickets: A Framework for Song Pattern Recognition.
Sequential Filtering Processes Shape Feature Detection in Crickets: A Framework for Song Pattern Recognition.
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顺序滤波过程形状在板球中的特征检测：歌曲模式识别的框架。
DOI：
10.3389/fphys.2016.00046
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发表时间：
2016
影响因子：
4
通讯作者：
Hedwig BG
中科院分区：
文献类型：
--
作者：
Hedwig BG
种内声学通信需要在接收器的听觉通路中进行滤波过程和特征检测器，以识别物种特异性信号。昆虫，如声音交流蟋蟀，允许描述和分析在行为和神经水平上的听觉处理机制。雌性蟋蟀接近雄性鸣叫，它们的趋声行为与鸣叫的特征相一致，如载波频率和声音脉冲的时间模式。从行为实验和听觉通路不同阶段的神经记录中获得的数据导致了串联过滤机制的概念。这些包括在听觉器官的水平上的载波频率的滤波器，以及通过传入神经的阶段性发作响应和胸部中间神经元的相互抑制的脉冲持续时间。此外，通过大脑中的延迟线和重合检测器电路的处理导致特征检测神经元，其特异性地响应于物种特异性脉冲速率，并且匹配声定位响应的特征。该相同的电路还可以控制对物种特异性啁啾模式的响应。基于这些串联的过滤器和特征检测机制，雌性趋声行为被塑造和调整为雄性呼唤歌曲的特征属性。
Intraspecific acoustic communication requires filtering processes and feature detectors in the auditory pathway of the receiver for the recognition of species-specific signals. Insects like acoustically communicating crickets allow describing and analysing the mechanisms underlying auditory processing at the behavioral and neural level. Female crickets approach male calling song, their phonotactic behavior is tuned to the characteristic features of the song, such as the carrier frequency and the temporal pattern of sound pulses. Data from behavioral experiments and from neural recordings at different stages of processing in the auditory pathway lead to a concept of serially arranged filtering mechanisms. These encompass a filter for the carrier frequency at the level of the hearing organ, and the pulse duration through phasic onset responses of afferents and reciprocal inhibition of thoracic interneurons. Further, processing by a delay line and coincidence detector circuit in the brain leads to feature detecting neurons that specifically respond to the species-specific pulse rate, and match the characteristics of the phonotactic response. This same circuit may also control the response to the species-specific chirp pattern. Based on these serial filters and the feature detecting mechanism, female phonotactic behavior is shaped and tuned to the characteristic properties of male calling song.