Davies Georgie, De Marco Rodrigo
Liverpool John Moores University.
MicroPubl Biol. 2024 Oct 9;2024. doi: 10.17912/micropub.biology.001349. eCollection 2024.
Many animals are drawn to prominent sensory cues. Larval zebrafish consistently show attraction to minute water motions (mWMs). This positive mechanotaxis involves scanning-like eye movements (EMs) and changes in body orientation (pivoting), which likely enhance sensory detection. Video analysis shows that EMs increase during mWMs and negatively correlate with locomotion. Both the strength of mWMs and rearing conditions influence EM frequency, with alterations occurring after mWM offset. Additionally, EMs often accompany pivoting. The quantitative data presented here will aid in further exploring the neural bases of visual responses and positive mechanotaxis.
许多动物会被显著的感官线索所吸引。斑马鱼幼体始终表现出对微小水流运动（mWMs）的吸引力。这种正向机械趋性涉及类似扫描的眼球运动（EMs）和身体方向的变化（旋转），这可能会增强感官检测。视频分析表明，在mWMs期间EMs会增加，并且与运动呈负相关。mWMs的强度和饲养条件都会影响EM频率，在mWM偏移后会发生变化。此外，EMs通常伴随着旋转。这里呈现的定量数据将有助于进一步探索视觉反应和正向机械趋性的神经基础。
