Multisensory strategies for postural compensation after lateral line loss.
Multisensory strategies for postural compensation after lateral line loss.
复制标题
侧线丢失后姿势补偿的多感官策略。
DOI：
10.1101/2024.01.23.576760
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发表时间：
2024
期刊：
影响因子：
--
通讯作者：
Schoppik,David
中科院分区：
文献类型：
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作者：
Davis,SamanthaN;Zhu,Yunlu;Schoppik,David
为了控制水下高度，水生脊椎动物整合多感官信息（如前庭、视觉、本体感受）来指导姿态和游泳运动学。在这里，我们描述了斑马鱼幼虫在有或没有视觉线索的情况下，在施加不稳定性（浮力下降）后如何改变姿势和运动策略。我们发现幼虫在侧线毛细胞（流感应）急性丧失后下沉更多。作为回应，幼虫采取了不同的补偿策略，这取决于它们是在光照下还是在黑暗中。在黑暗中，幼虫游得更频繁，用鼻子操纵鼻子，更有效地攀爬。然而，在光照下，幼虫爬得更频繁，用胸鳍和躯干来提升。我们得出结论，幼虫感觉到不稳定，并利用前庭和视觉信息来控制姿态和轨迹。我们的工作是朝着理解负责控制策略的多感觉神经计算迈出的一步，这些控制策略允许深度定向和导航。
To control elevation underwater, aquatic vertebrates integrate multisensory information (e.g., vestibular, visual, proprioceptive) to guide posture and swim kinematics. Here we characterized how larval zebrafish changed posture and locomotive strategies after imposed instability (decreased buoyancy) in the presence and absence of visual cues. We discovered that larvae sank more after acute loss of lateral line (flow-sensing) hair cells. In response, larvae engaged different compensatory strategies, depending on whether they were in the light or dark. In the dark, larvae swam more frequently, engaging their trunk to steer their nose up and climb more effectively. However, in the light, larvae climbed more often, engaging both pectoral fins and trunk to elevate. We conclude that larvae sense instability and use vestibular and visual information as available to control posture and trajectory. Our work is a step towards understanding the multisensory neural computations responsible for control strategies that allow orientation and navigation in depth.