Publications (3)0 Total impact
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ABSTRACT: Robot Technology should contribute to the progress of other research fields. We’d like to propose one example of it. In psychology, basic medicine and biological science, several experiments on animal behavior have been performed to clarify brain functions or mechanisms of learning. These experiments have been playing very important role to understand human mind. Rats and mice have been well used in these experiments. Therefore, we have been developing quadruped robots that reproduce animal behavior as new experimental tools. We developed a quadruped robot that has 4 legs and reproduces some social behaviors. Each leg has 3 DOFs. The robot also has 2 DOF at the neck and 2 DOF at the waist.12/2009: pages 257-264;
Conference Proceeding: Development of quadruped animaroid for social interaction test with rats and mice[show abstract] [hide abstract]
ABSTRACT: In psychology and basic medical science, many studies have been performed with experiments on animals such as rats and mice, to clarify mechanisms of mental disorders. With this aim, several ldquomental disorder modelrdquo rats and mice have been developed by genetic manipulation, giving psychotropic drugs, injuring their brain or breeding under special conditions. ldquoSocial interaction testrdquo is one of the experimental protocols to evaluate their appropriateness. However, this test is not popular because of lack of reproducibility. Thus, we consider the robotic agent that interacts with a rat/mouse in the social interaction test provides new opportunities to perform it under more strict conditions. We have then developed a quadruped animaroid, WR-1. WR-1 has four 3-DOF legs, 2-DOF waist and 1-DOF neck. WR-1 walks with both crawl and trot gait. WR-1 also reproduces rearing and head shake behavior. Size of WR-1 is larger and motion performance lower than those of a mature rat. However, in a social interaction test with a rat and WR-1, some social interactions were observed between them.Advanced Intelligent Mechatronics, 2009. AIM 2009. IEEE/ASME International Conference on; 08/2009
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ABSTRACT: This paper presents the design and development of a novel biomimetic quadruped robot for behavior studies of rats and mice. Many studies have been performed using these animals for the purpose of understanding human mind in psychology, pharmacology and brain science. In these fields, several experiments on social interactions have been performed using rats as basic studies of mental disorders or social learning. However, some researchers mention that the experiments on social interactions using animals are poorly-reproducible. Therefore, we consider that reproducibility of these experiments can be improved by using a robotic agent that interacts with an animal subject. Thus, we developed a small quadruped robot WR-2 (Waseda Rat No. 2) that behaves like a real rat. Proportion and DOF arrangement of WR-2 are designed based on those of a mature rat. This robot has four 3-DOF legs, a 2-DOF waist and a 1-DOF neck. A microcontroller and a wireless communication module are implemented on it. A battery is also implemented. Thus, it can walk, rear by limbs and groom its body.Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 01/2009; 2009:7192-5.