PDF(Pubmed)
Abstract：
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.
摘要：
逃避或逃离捕食者是整个动物界生存的最关键问题之一。及时发现捕食者和启动适当的战斗或逃跑反应是神经系统的先天能力。在这里，我们回顾了我们对先天视觉触发的防御行为和潜在的神经回路机制的理解的最新进展。和醋蝇之间的比较，斑马鱼,包括小鼠。本概述涵盖了该过程中涉及的神经回路的解剖和功能方面，包括视觉威胁处理和识别，选择适当的行为反应，以及这些天生的防御行为的开始。这篇综述的重点是这条道路的早期阶段，即,从复杂的视觉输入中识别威胁，以及行为选择如何受到视觉威胁差异的影响。我们还简要介绍了如何集中处理先天防御反应。基于这些总结，我们讨论了视觉威胁的编码策略，并提出了一种用于快速先天防御反应的通用原型途径。
