Unraveling the mystery of touch. Researchers uncover mechanism that underlies the exquisite sensitivity of certain skin surfaces. The analysis, conducted in mice, reveals that the higher sensitivity of certain regions of the skin stems from a greater number of and stronger connections between neurons in these regions and corresponding brain areas that receive signals from them. The findings set the stage for better understanding the mechanisms that underlie abnormalities of touch seen in certain neurodevelopmental disorders in humans. Source 5d.
I know for myself, I'm more sensitive to touch than the average person. I have known people who are MORE sensitive, and that is a symptom of certain disorders. I cannot stand 'brushes' against my skin - it makes me jump like something scared me.