Naoki Tomi

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In this paper, we investigate motor adaptation of human arm movements to external dynamics. In an experiment, we tried to determine whether humans can learn an internal model of a mixed force field (V+P) that was the sum of a velocity-dependent force field (V) and a position-dependent force field (P). The experimental results show that the subjects did not(More)
Humans have the ability to produce an internal reproduction of a specific motor action without any overt motor output. Recent findings show that the processes underlying motor imagery are similar to those active during motor execution and both share common neural substrates. This suggests that the imagery of motor movements might play an important role in(More)
Humans are remarkable in their ability to adapt to changes in the dynamics of a movement. The mechanisms by which the brain controls body movements are important in the fields of robotics and neurosciences. Robots are largely used to study the adaptive properties of human motor system. If rehabilitation robots are used in conjunction with techniques for(More)
Understanding the mechanisms which the brain uses to control body movements have been important in the both fields of robotics and neuroscience. Recent neuroscience studies have shown that humans can acquire a neural representation of the relation between motor command and movement, i.e., learn an internal model of the environment dynamics. In this paper,(More)
In this paper, we propose a self-organized learning model that can generate behaviors for successfully performing various tasks, unlike conventional systems that could perform only a limited task in a limited environment. The model memorizes various relationships between changes in sensory information and a motor command through learning. After the(More)
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