Ryo Minegishi

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The olfactory system of male moths has an extreme sensitivity with the capability to detect and recognize conspecific pheromones dispersed and greatly diluted in the air. Just 170 molecules of the silkmoth (Bombyx mori) sex pheromone bombykol are sufficient to induce sexual behavior in the male. However, it is still unclear how the sensitivity of olfactory(More)
To elucidate the dynamic information processing in a brain underlying adaptive behavior, it is necessary to understand the behavior and corresponding neural activities. This requires animals which have clear relationships between behavior and corresponding neural activities. Insects are precisely such animals and one of the adaptive behaviors of insects is(More)
In this paper, we suggest that a feedback loop is formed during the chemical plume tracing (CPT) activities of the silkworm moth, Bombyx mori. We demonstrate the formation of this loop by utilizing a novel experiment system called a brain-machine hybrid system (BMHS). We focus on the pheromone source-searching behavior of a silkworm moth. Finding an odor(More)
We have created a brain-machine hybrid system (BMHS) which is able to solve the chemical plume tracking (CPT) problem using the brain of the male silkworm moth. The purpose of the system is to investigate adaptability which results from interactions between brain, body, and environment. In this paper, we describe a BMHS architecture and experiments to(More)
We developed a Tethered system which measures the locomotion of the silk moth (Bombyx Mori) upon stimulation. The Bombykol, which is the synthetic pheromone, is used as the stimuli and we investigate the changes in chemical plume tracing (CPT) behavior of the moth. We consider the importance of this study for biomimetic of its CPT behavior. The locomotion(More)
To realize an autonomous odor source localization robot, we focused on the adaptability of an insect's brain to compensate for rotational disturbances during odor source searching behavior. We manipulated motor outputs to control the sensory feedback of an insect using a brain-machine hybrid system. This system is composed of an insect's head and a(More)
In this study, we investigated an aspect of the chemical plume tracing behavior of an insect by using a bio-machine hybrid system. We implemented an experimental system by which an insect brain was connected to a robot body. We observed neural responses to external disturbances and transitions at changes in the motor gain of the robot body. Based on the(More)
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