Liu Zhuoxin, Givon Shachar, Segev Ronen, Donchin Opher
Department of Mechatronics Engineering, Ben-Gurion University of the Negev, Be'er Sheva, Israel.
Department of Biomedical Engineering, Ben-Gurion University of the Negev, Be'er Sheva, Israel.
Eur J Neurosci. 2025 Sep;62(5):e70241. doi: 10.1111/ejn.70241.
Motor adaptation is crucial for animals to move in diverse environments, including fish. Here, we develop a novel experimental platform that allows for precise control of sensorimotor transformations and direct comparison with established paradigms used in mammalian studies. We show that goldfish operating a fish operated vehicle (FOV) adapt swimming behavior to achieve targets when vehicle movement is perturbed by a rotational transformation. Goldfish gradually adjusted their swimming patterns to compensate for the perturbation and had aftereffects when the perturbation was removed. Fish showed improved performance when the perturbation was reintroduced, although their initial learning rate in the second exposure was slower compared to the first exposure. These findings reveal that although goldfish can adapt to novel dynamics, their adaptation mechanisms may differ from those of mammals. This study broadens our understanding of motor adaptation across species, contributing to a more comprehensive view of motor learning in vertebrates.
运动适应对于动物在包括鱼类在内的各种环境中移动至关重要。在这里，我们开发了一个新颖的实验平台，该平台允许精确控制感觉运动转换，并能与哺乳动物研究中使用的既定范式进行直接比较。我们表明，操作鱼类操作车辆（FOV）的金鱼在车辆运动因旋转转换而受到干扰时，会调整游泳行为以实现目标。金鱼逐渐调整它们的游泳模式以补偿干扰，并且在干扰消除后会产生后效应。当再次引入干扰时，鱼类表现出性能提升，尽管它们在第二次暴露时的初始学习速度比第一次暴露时要慢。这些发现表明，尽管金鱼能够适应新的动力学，但它们的适应机制可能与哺乳动物不同。这项研究拓宽了我们对跨物种运动适应的理解，有助于更全面地了解脊椎动物的运动学习。
