Abstract
Towards the establishment of motion instruction methods, the authors have studied the contributions of vision and/or haptic sensation for motion instructions by psychophysical experiments. They employed single line strokes with various dimensions as an example of 2-D motions. In addition to the sensation factor, they examined the following factors: (1) the lengths, the directions, and the one-way time periods relating to the presented line segments, and (2) the maximum forces, the deviation margins, and the precedence biases.
