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Multifunctional Wing Motor Control of Song and Flight

机译:歌曲和飞行的多功能机翼电机控制

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Multifunctional motor systems produce distinct output patterns that are dependent on behavioral context, posing a challenge to underlying neuronal control. Flies use their wings for flight and the production of a patterned acoustic signal, the male courtship song, employing in both cases a small set of wing muscles and corresponding motor neurons. We took first steps toward elucidating the neuronal control mechanisms of this multifunctional motor system by live imaging of muscle ensemble activity patterns during song and flight, and we established the functional role of a comprehensive set of wing muscle motor neurons by silencing experiments. Song and flight rely on distinct configurations of neuromuscular activity, with most, but not all, flight muscles and their corresponding motor neurons contributing to song and shaping its acoustic parameters. The two behaviors are exclusive, and the neuronal command for flight overrides the command for song. The neuromodulator octopamine is a candidate for selectively stabilizing flight, but not song motor patterns.
机译:多功能电机系统产生不同的输出模式,这些模式取决于行为背景,对潜在的神经元控制构成挑战。苍蝇使用它们的翅膀飞行,生产图案化声学信号,男性求爱歌曲,在两种情况下采用一小组翼肌和相应的运动神经元。我们首先采用歌曲和航班期间肌肉集合活动模式的实际成像来阐明这种多功能电机系统的神经元控制机制,我们通过沉默实验建立了一系列综合翼肌动机神经元的功能作用。歌曲和航班依赖于神经肌肉活动的不同配置,大多数,但不是全部,飞行肌肉和它们相应的电机神经元有助于歌曲和塑造其声学参数。这两个行为是独占的,而且飞行的神经元命令覆盖了歌曲的命令。神经调节剂辛胺是选择性稳定飞行的候选者,但不是歌曲电机图案。

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