The goal of this clinical trial is to explore the benefits of autonomy supported learning in patients with Parkinson's disease. The main questions to answer are: * Whether autonomy supported learning can benefit motor learning in PD patients * Whether autonomy supported learning can enhance intrinsic motivation and/ or information processing of PD patients in learning a new task. * Whether autonomy supported learning can facilitate cortical excitability change after practicing a new task. Participants will be recruited into two groups (Self-control group, SC; and yoked group, YK) to learn a finger-pressing trajectory matching task * Participants in SC group will have choice over feedback schedule during trial practice * Participants in YK group will receive feedback with no-choice during trial practice Researchers will compare the retention test performance to see if autonomy supported learning will lead to better learning effect.