Borst Alexander
Max-Planck-Institute of Neurobiology, 82152 Martinsried, Germany
Cold Spring Harb Symp Quant Biol. 2014;79:131-9. doi: 10.1101/sqb.2014.79.024695. Epub 2014 Dec 19.
Seeing the direction of motion is fundamental for visual navigation, predator avoidance, and prey capture. However, the direction of motion is not explicitly represented at the level of individual photoreceptors. Rather, directional motion information needs to be extracted from the photoreceptor array by comparing the signals of neighboring photoreceptors over time. The exact nature of this process as implemented in the Drosophila visual system is currently being studied in great detail, and much progress has recently been made in determining the neural circuits giving rise to directional motion information in this species.
感知运动方向对于视觉导航、躲避捕食者和捕获猎物至关重要。然而，运动方向在单个光感受器层面并未明确呈现。相反，方向运动信息需要通过随时间比较相邻光感受器的信号，从光感受器阵列中提取。果蝇视觉系统中实现这一过程的确切本质目前正在深入研究，并且最近在确定该物种中产生方向运动信息的神经回路方面取得了很大进展。
