2024-07-17 カリフォルニア大学サンディエゴ校(UCSD)
<関連情報>
- https://today.ucsd.edu/story/researchers-identify-brain-circuits-tied-to-the-behavior-of-schooling-fish
- https://www.cell.com/current-biology/fulltext/S0960-9822(24)00833-9
魚の群れが社会的な動きを認識する神経回路を発達させる Development of neural circuits for social motion perception in schooling fish
David Zada,Lisanne Schulze,Jo-Hsien Yu,…,Julia L. Napoli,Jimjohn Milan,Matthew Lovett-Barron
Current Biology Published:July 17, 2024
DOI:https://doi.org/10.1016/j.cub.2024.06.049
Highlights
- Danionella cerebrum engage in collective schooling behavior using vision
- Schooling develops sequentially, with group aggregation preceding group alignment
- Midbrain tectal neurons in mature fish are selective to the shape of virtual conspecifics
- Social experience is necessary for schooling and tectal shape selectivity in adults
Summary
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.
Graphical abstract
