Abstract
Neural networks for a human motion are investigated towards the unified numerical simulation of brain, neural networks, and three-dimensional musculoskeletal system. A simple model for an arm movement suggests that abnormal motion is caused by the dopamine-depletion in upper central nervous system. More detailed neural networks based on a neuron firing model are also developed towards the integration in the musulo-skeletal model. It is confirmed that the motoneuron model successfully reproduces the recruitment when injected direct current becomes larger.
