1. Explore motion control: mirror painting experiment can help researchers understand the process of human motion control, including motion coordination, reaction speed, target tracking and so on. By observing the performance of subjects in mirror painting experiments, we can study the behavior and brain mechanism of human beings in different motion control tasks.

2. Study the learning process: mirror painting experiment can also be used to study the learning process, because subjects need to adapt to the influence of inverted lens and change their own movement direction, which requires learning and adaptation. By studying the process and effect of subject learning, we can understand the essence and mechanism of human learning process.

3. Applied to rehabilitation research: mirror painting experiment can also be applied to rehabilitation research. For example, in rehabilitation training, by letting patients wear mirrors, their brain adaptation mechanism can be promoted and the rehabilitation process can be accelerated.