BRAIN - Key cells in touch sensation identified: Skin cells use new molecule to send touch information to the brain

Biologists have solved an age-old mystery of touch: how cells just beneath the skin surface enable us to feel fine details and textures. Touch is the last frontier of sensory neuroscience. The cells and molecules that initiate vision -- rod and cone cells and light-sensitive receptors -- have been known since the early 20th century, and the senses of smell, taste, and hearing are increasingly understood. But almost nothing is known about the cell ...

http://www.sciencedaily.com/releases/2014/04/140406162249.ht