It is believed to come from touch receptors
that are close to the surface of your skin and connected by special nerves.
Other parts of the body do not have as many touch receptors
and thus cannot discriminate two points when they are close together.
based company that is developing haptics-based technologies to provide warriors with information through their touch receptors
While research has shown in detail how touch receptors
on the skin map to the brain, "it's really an open question which molecules are involved in detecting tactile stimuli, like vibrations or light touch, and how these molecules are modulated.
When you stroke your fingers over a surface, its structure triggers high-frequency vibrations in the finger, to which specific touch receptors
, the Pacinian corpuscles, respond.