For the area of the body with the greatest sensitivity to touch (the fingertips), the two tips of the paper clip can be very close together (a few millimeters) and a person can still feel both points, because there are many touch receptors
located in the skin of the fingertips.
Researchers at the University of Wisconsin-Madison are developing this tongue-stimulating system, which translates images detected by a camera into a pattern of electric pulses that trigger touch receptors
THE sensitivity of a woman's skin to touch depends on millions of touch receptors
all over our body.
And our skin, which has about 50 touch receptors
for every square centimeter and about 5 million sensory cells overall, is hungry for touch.
And, as it gets hotter, touch receptors
in the skin become more sensitive to a lover's kisses and caresses.
Collaborating with neuroscientist Jon Kaas at Vanderbilt, Catania found that more than 100,000 nerve fibers run from the star to the brain--almost six times more than come from the touch receptors
in a highly sensitive human hand.