Sensorimotor Transformations Underlying Variability in Song Intensity during Drosophila Courtship.

Sensorimotor Transformations Underlying Variability in Song Intensity during Drosophila Courtship.
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DOI:
10.1016/j.neuron.2015.12.035
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发表时间:
2016-02-03
期刊:
影响因子:
16.2
通讯作者:
Murthy, Mala
Murthy, Mala
中科院分区:
医学1区
文献类型:
--
作者:
Coen, Philip;Xie, Marjorie;Clemens, Jan;Murthy, Mala

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从昆虫到人类的各种动物物种都利用声学信号进行通信。对歌曲或语音产生的神经基础的研究几乎完全集中在频谱和时间模式的产生上,但动物在交流时也可以调整声学信号强度。例如,人类自然地根据对接收器距离的视觉估计来调节语音的音量雅阁。这种能力的基本机制在任何系统中都没有特征。在这里,我们表明,果蝇男性调节求爱歌曲的幅度与女性的距离,我们调查的感觉运动的转变的每一个阶段,这种行为的基础上,从检测特定的视觉刺激功能和感官处理的时间尺度,调制的神经和肌肉活动,产生歌曲。我们的研究结果表明,昆虫声通信的控制水平出乎意料的,并揭示新的计算和机制的基础上的通信过程中的声信号强度的调节。
Diverse animal species, from insects to humans, utilize acoustic signals for communication. Studies of the neural basis for song or speech production have focused almost exclusively on the generation of spectral and temporal patterns, but animals can also adjust acoustic signal intensity when communicating. For example, humans naturally regulate the loudness of speech in accord with a visual estimate of receiver distance. The underlying mechanisms for this ability remain uncharacterized in any system. Here, we show that Drosophila males modulate courtship song amplitude with female distance, and we investigate each stage of the sensorimotor transformation underlying this behavior, from the detection of particular visual stimulus features and the timescales of sensory processing, to the modulation of neural and muscle activity that generates song. Our results demonstrate an unanticipated level of control in insect acoustic communication, and uncover novel computations and mechanisms underlying the regulation of acoustic signal intensity during communication.
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