Optimization for inducing multi-degree of freedom motion by information presentation of one degree of freedom

When human exercises multi-degrees of freedom (DOF) motion, they just pay attention to only part of the body motion and can control the whole body motion. By consciously adjusting low-DOF movements, it is possible to induce multi-DOF motion, which is referred as a “knack” in the sport. Acquiring knacks can drastically improve multi-DOF motor skills by low-DOF information presentation, and it is also used in motor learning. We consider that “knack” is “what induces multi-DOF motion by low-DOF information presentation” and “what improves motor skills”. In this study, we investigated whether multi-DOF motion can be induced by single-DOF information presentation, that is sound frequency, and whether motor skills are improved through our human experiments.