Department of Neurobiology, School of Biological Sciences. University of California, San Diego, La Jolla, CA 92093, USA.
Department of Neurobiology, School of Biological Sciences. University of California, San Diego, La Jolla, CA 92093, USA.
Curr Biol. 2024 Aug 5;34(15):3380-3391.e5. doi: 10.1016/j.cub.2024.06.049. Epub 2024 Jul 17.
The collective behavior of animal groups emerges from the interactions among individuals. These social interactions produce the coordinated movements of bird flocks and fish schools, but little is known about their developmental emergence and neurobiological foundations. By characterizing the visually based schooling behavior of the micro glassfish Danionella cerebrum, we found that social development progresses sequentially, with animals first acquiring the ability to aggregate, followed by postural alignment with social partners. This social maturation was accompanied by the development of neural populations in the midbrain that were preferentially driven by visual stimuli that resemble the shape and movements of schooling fish. Furthermore, social isolation over the course of development impaired both schooling behavior and the neural encoding of social motion in adults. This work demonstrates that neural populations selective for the form and motion of conspecifics emerge with the experience-dependent development of collective movement.
动物群体的集体行为源于个体之间的相互作用。这些社会相互作用产生了鸟群和鱼群的协调运动，但对于它们的发展出现和神经生物学基础知之甚少。通过描述微玻璃鱼 Danionella cerebrum 的基于视觉的群体行为，我们发现社交发展是按顺序进行的，动物首先获得聚集的能力，然后与社交伙伴保持姿势对齐。这种社交成熟伴随着中脑神经群体的发展，这些群体优先受到与群体游动形状和运动相似的视觉刺激的驱动。此外，在发育过程中进行社交隔离会损害成年动物的群体行为和社交运动的神经编码。这项工作表明，对同种动物的形状和运动具有选择性的神经群体随着集体运动的经验依赖性发展而出现。
