Neural Circuit Mechanisms Involved in Animals’Detection of and Response to Visual Threat  

作　　者：Qiwen Wu Yifeng Zhang 

机构地区：[1]Institute of Neuroscience,Center for Excellence in Brain Science and Intelligence Technology,Chinese Academy of Sciences,Shanghai,200031,China [2]University of Chinese Academy of Sciences,Beijing,100049,China

出　　处：《Neuroscience Bulletin》2023年第6期994-1008,共15页神经科学通报（英文版）

基　　金：supported by a general project of the National Natural Science Foundation of China(31871052).

摘　　要：Evading or escaping from predators is one of the most crucial issues for survival across the animal kingdom.The timely detection of predators and the initiation of appropriate fight-or-flight responses are innate capabilities of the nervous system.Here we review recent progress in our understanding of innate visually-triggered defensive behaviors and the underlying neural circuit mechanisms,and a comparison among vinegar flies,zebrafish,and mice is included.This overview covers the anatomical and functional aspects of the neural circuits involved in this process,including visual threat processing and identification,the selection of appropriate behavioral responses,and the initiation of these innate defensive behaviors.The emphasis of this review is on the early stages of this pathway,namely,threat identification from complex visual inputs and how behavioral choices are influenced by differences in visual threats.We also briefly cover how the innate defensive response is processed centrally.Based on these summaries,we discuss coding strategies for visual threats and propose a common prototypical pathway for rapid innate defensive responses.

关 键 词：LOOMING Innate defensive behavior ESCAPE FREEZING Circuit mechanism Encoding 

分 类 号：Q42[生物学—神经生物学]