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首页> 美国卫生研究院文献>Frontiers in Behavioral Neuroscience >Binocular Interactions Underlying the Classic Optomotor Responses of Flying Flies
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Binocular Interactions Underlying the Classic Optomotor Responses of Flying Flies

机译：飞蝇的经典光动力反应的双目相互作用。

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In response to imposed course deviations, the optomotor reactions of animals reduce motion blur and facilitate the maintenance of stable body posture. In flies, many anatomical and electrophysiological studies suggest that disparate motion cues stimulating the left and right eyes are not processed in isolation but rather are integrated in the brain to produce a cohesive panoramic percept. To investigate the strength of such inter-ocular interactions and their role in compensatory sensory–motor transformations, we utilize a virtual reality flight simulator to record wing and head optomotor reactions by tethered flying flies in response to imposed binocular rotation and monocular front-to-back and back-to-front motion. Within a narrow range of stimulus parameters that generates large contrast insensitive optomotor responses to binocular rotation, we find that responses to monocular front-to-back motion are larger than those to panoramic rotation, but are contrast sensitive. Conversely, responses to monocular back-to-front motion are slower than those to rotation and peak at the lowest tested contrast. Together our results suggest that optomotor responses to binocular rotation result from the influence of non-additive contralateral inhibitory as well as excitatory circuit interactions that serve to confer contrast insensitivity to flight behaviors influenced by rotatory optic flow.
机译：响应于施加的路线偏差，动物的视动反应可减少运动模糊并有助于维持稳定的身体姿势。在苍蝇中，许多解剖学和电生理学研究表明，刺激左眼和右眼的不同运动提示不是孤立处理的，而是集成在大脑中以产生凝聚力的全景感。为了研究这种眼间交互作用的强度及其在代偿性感觉-运动转换中的作用，我们利用虚拟现实飞行模拟器记录了系住的苍蝇响应施加的双眼旋转和单眼从前到后的机翼和头部的光动力反应。前后移动。在一个狭窄的刺激参数范围内，该参数会产生对双眼旋转的对比度不敏感的光动力响应，我们发现对单眼前后运动的响应大于对全景旋转的响应，但对对比度敏感。相反，对单眼从后向前运动的响应要慢于对旋转的响应，并在最低的测试对比度下达到峰值。我们的研究结果共同表明，对双眼旋转的光动力反应是由非加性对侧抑制作用以及兴奋性电路相互作用的结果引起的，这些相互作用使对比光敏性对受旋转光学流影响的飞行行为不敏感。

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