How can humans feel nothing when touching their own bodies with their fingertips but feel wonderful sensations when touched by someone else’s fingertips?

Question

How can humans feel nothing when touching their own bodies with their fingertips but feel wonderful sensations when touched by someone else’s fingertips?

In: Biology

Answer 1

Your nerves/brain know what is expected when you are creating the action. With another interacting with you, they don’t. Another’s touch also is a socal interaction leading to other brain signals.

You can hug yourself, but the hug from another shows a level of trust. We are socal creatures.