Using a two point sensor test of a closed eye touch response

one person closes their eyes and one touches different areas of their partners palm fingertips and back

1. What body part will sense more accurately fingertip, palm, or back?
2. what could have influenced the more accurate responses? (age? body part? injury?)
3. How could you explain your results?
4. how does Perception and sensationplay a role?
5. Why was it important for all participants to have their eyes closed?
6. What do you think about this sensitivity test?
7. In what real-life events could this test be delivered and why?
8. How could we improve this two point sensor test?