A class of nerve fibres in the skin in particular pleasure that transmit messages to the brain was identified by computer geeks USA and Sweden who say that their research could improve understanding of how the touch supports human relationships.
For many years, scientists have sought to understand the mechanisms behind as the body experiences of pain and nerves involved in transmitting messages to the brain. why, in conditions such as neuropathy, where the peripheral nervous system is corrupt, people can suffer long after the messaging system has gone wrong and feel the pain even when there's no reason.
Professor Francesco McGlone, said lead author of the study:
If you get a piece of sandpaper in your eye, you have a toothache or bite your tongue, ago so bad because there are more fibre C vi. research they've done is the construction of tests for another role of fibre C into the skin than pain receptors, but the receptors of pleasure.
In this research, published in the journal Nature Neuroscience, experts from the University of Gothenburg, Sweden and the University of North Carolina, including scientists of Unilever, identified "C-tactile" nerve fibres, who sent messages of pleasure to the brain.
Then scientists have used a "robotic Stimulator feel" – basically, a computerized mechanical arm equipped with a soft brush – about twenty volunteers, to determine the speed at which should be touched C-fibers to activate the feeling of pleasure.
It was noted that, if the rate to be stroked was faster or slower speeds excellent four or five inches per second, so don't have activated nerve fibres and the touch wasn't pleasant. have also found that C-tactile fibres are only present on the skin hairy and are absent in the Palm of your hand.
Professor McGlone said that these nerve fibres are part of the evolutionary mechanism that helps humans bond. People preferred to be fondled in a manner similar to that used by a mother to the comfort of a child or by pairs when demonstrating love.
Continued:
We believe that this could be the way of nature to ensure that conflicting messages are not sent to the brain when it is in use as functional tool. our primary impetus as human beings is procreation, but there are some mechanisms in place that are associated with the behavior and reward that exist to ensure reports are continuing.
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Posted by Jonathan in biology, Sociobiology
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