Human Loop Research Project is conducted by researchers in the University of Arizona, which is a 10-year project aims to answer four questions: 1. What is the best kind of tactile (or audio tactile) feedback that can be given to provide guidance for users in a fine motor movement based on orientation task? 2. What is the analytical model that can describe human behavior (fine movements of the hand)? 3. With what sort of active controller can we optimize orientation task performance? 4. How does optimized performance compare to non-optimized?