The marks on our fingers are said to help us grasp things, and this is what happened during the evolutionary process, but it is now known that they contain the ends of the nerves that make our touch so sensitive. We feel a slight warmth, coolness, softness and hardness.
“Fingerprints give us details of all the information that can be obtained by touching,” says Dr. Oya Jeroka, a scientist at the University of Omea in Sweden. “Before that, the general impression was that fingerprints were created by an evolutionary process to hold on to something,” Jiroka said. For example, its bulge and design prevent the pen from slipping with our fingers. But other scientists thought it would make the sense of touch better and more effective.
Xeroka says some people have a high degree of sensitivity in the fingertips and despite many experiments, no clear answer has been found. It was with this in mind that he began his research.
The Swans performed an experiment on six women and six men between the ages of 20 and 30. They all took turns sitting in the dentist’s chair. His hands were kept straight in one place. The scientists then took a paper like sandstone with small and smooth bulges. Each protrusion was half a millimeter high and now the paper was rubbed on the fingertips at different speeds and in different directions. During this time, the electrical activity of each nerve cell was noted. This recording was recorded from a tungsten electrode on the upper arm of each participant.
This research mapped out the whole process, information, and data. It was finally discovered that the most sensitive area was in the fingerprints. It turns out that our brain’s most sensitive sense of touch comes from fingerprints, and that’s where a large number of nerve fibers are present. But Dr. Omeya says the study doesn’t mean there are no other uses for fingerprints. They help to hold things in place but are also sensitive.