The study of spatial-temporal processing of environmental information and releasing mechanisms of the behavior by micro-brain systems.

环境信息时时刻刻在变化。昆虫获取并处理这些复杂的信息，并表现出适当的行为。气味分子漂浮在空气中，以复杂的模式不断改变其在空间中的分布状态。昆虫可以追踪信息素，以定位到几公里外的配偶。这项研究的目的是了解昆虫的微脑系统是如何处理气味信息的，以及这些信息是如何参与产生和引导气味导向行为的。在步行蛾物种Bumbyx mori中，走向信息素来源的行走是由反射和自我生成的之字形程序的组合控制的，这两种程序都是由间歇性信息素刺激触发的。首先，雄性开始表现出一条简短的直线行走，走到刺激所在的天线相同的方向。然后，启动Z字形行走模式的编程序列，该序列由Z字形TU…组成更多的ns，然后是循环行为。之字形转弯的转弯间隔时间逐轮显着增加。在小脑中产生类似于电记忆元件的短暂兴奋和翻转的神经活动模式，并将其传递到胸神经节的运动系统，分别对直线行走和之字形转弯起着重要的控制作用。通过使用这种程序化的行为，并根据空气中气味的时空分布模式重复设置和重新设置程序，雄性家蚕可以定向到气味来源，而不需要使用复杂的记忆和学习。这种基于神经机制的行为策略在一个小型移动机器人上进行了评估，该机器人具有检测信息素的雄蛾触角。较少

Environmental information changes from moment to moment. Insects acquire and process this complex information, and display the appropriate behavior. Odor molecules float in the air and continuously change their distribution status in space in complex patterns. Insects can trace the pheromone to orient toward a mate over several kilometers away. The aim of the study is to understand how odor information is processed by the micro-brain systems of insects, and how the information participates in generating and guiding odor-oriented behavior.In a walking moth species, Bumbyx mori, the walking toward the pheromone source is controlled by a combination of a reflex and a self-generated zigzag program, which are both triggered by intermittent pheromonal stimulation. First, males begin to show a brief straight-line walk to the same direction of the antenna where the stimulation was applied. Then the programmed sequence of the zigzag-walking pattern is initiated, which consists of zigzagging tur … More ns and followed by looping behavior. Inter-turn interval time of the zigzag turns increases significantly turn by turn. The programmed sequence of the movements is 'reset' and 'restarted' from the beginning in response to each pulsed pheromonal stimulation.Pheromone-triggered brief excitation and a flipflopping neural activity pattern, whose response characteristics are similar to electric memory element (flipflop), generated in the microbrain and transmitted to a motor system in the thoracic ganglion play an important role for controlling the straight-line walking and the zigzag turns, respectively. Using such programmed behavior, and repeating the set and the reset of the program depending on the spatial and temporal distribution pattern of odors in the air, Bombyx males can orient toward the odor source without using complex memory and learning. Such behavioral strategies based on the neural mechanisms were evaluated by a small mobile robot, which had male moth antennae for detecting the pheromone. Less