校友大讲坛 第18期
生命科学名家讲坛第23讲
本周三开讲啦！
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Talk title:
Circuit topology for
behavioral prioritization
动物行为准则和大脑神经网络结构
Abstract:
Animals typically display one behavior at a time, transitioning from one behavior to another as needed, following protocols that were often underexplored. In electronic systems, operational protocols are determined by circuit topology. Similarly, in biological systems, the E. coli lac operon acts as a protocol for metabolic changes. In this context, I will discuss our recently published study investigating the protocols and circuit topology of feeding and courtship behaviors in Drosophila. We found that feeding is initially prioritized in starved males, but the intake of protein-rich food induces a rapid protocol shift, prioritizing courtship within minutes. This behavioral shift is mediated by a gut-derived neuropeptide. Amino acids in the food trigger the release of this neuropeptide, which subsequently excites specific neurons in the brain. One neuronal population inhibits feeding, while another promotes courtship. Our findings demonstrate how the gut-brain axis exerts a profound influence on behavioral choice and suggest a framework to investigate the hierarchical organization of circuit modules.
来源｜海南大学校友会、海南大学生命健康学院
排版 ｜刘鹤翔
审核 ｜王平敏
复审 ｜颜 平
终审 ｜林仕岛
海南大学新能源校园摆渡车正式启用
吴学光校友做客海南大学第十七届校友大讲坛
