Nobuyuki Sugano

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We examined how it affects the opening movement of the crayfish opener muscle whether successive interspike intervals of the excitatory motor axon are independent or not in the statistical sense. To execute this study, the excitatory motor axon was stimulated electrically with the three types of correlated adjacent interval sequences generated by(More)
A digital-computer simulated model, which consisted of the neuromuscular synapse and the muscle with external loads, was formulated for the neuromuscular system of the claw opener muscle of the crayfish. By using this model, the relationship between stimuli with correlated adjacent interval sequences and responses was investigated. The imposed correlated(More)
The effects of doublet impulse sequences of the excitatory motor axon on the movement of the claw opener muscles in the crayfish were examined. The excitatory motor axon was stimulated electrically with various patterns of doublet impulse sequences generated by a digital computer. Doublet impulse sequences of stimulation produced a larger sustained movement(More)
The effects of visual and auditory relevant feedback on human forearm movements elicited by random position signal sequences were examined. We observed the adjustment error sequences when the arm moved briskly and accurately to the target position. As the results, the mean adjustment errors for each speed (clock interval) of random position signal sequence(More)
The effects of doublet impulse sequences of the excitatory axon on the output response as firing probability (pr.) in the computer-simulated nerve cell were examined. A simple model was formulated to simulate the nerve cell, including the property that the resetting potential is influenced by the final membrane potential in the previous stage before firing.(More)
The effects of visual and auditory relevant feedback on human forearm movements elicited by random position signal sequences were examined. Forearm movements were performed with four feedback conditions. We observed the reaction time, the holding time, and the adjustment error sequences when the arm moved briskly and accurately to the target position. As(More)
For femoral fracture reduction, we have developed a surgical robotic system. Indirect traction is employed in our system. Indirect traction in fracture reduction is a generally used surgical method for preventing complications such as bone splits caused by high stress on bones. For traction, a patientpsilas foot is gripped by a jig and pulled to the distal(More)
In this paper, we present a robust small-object detection method, which we call “Frequency-Pattern-Enhanced Subtraction”, for wide-area surveillance such as that of harbors, rivers, and plant premises. For achieving robust detection under changes in environmental conditions, such as illuminance level, weather, and camera vibration, our method distinguishes(More)
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