Navigation Links
Signals from stroking have direct route to brain
Date:4/14/2009

Nerve signals that tell the brain that we are being slowly stroked on the skin have their own specialised nerve fibres in the skin. This is shown by a new study from the Sahlgrenska Academy, University of Gothenburg, Sweden. The discovery may explain why touching the skin can relieve pain.

The specialised nerve fibres in the skin are called CT nerves (C-tactile) and they travel directly to the areas in the brain that are important in the emergence of feelings.

"Basically the signals that tell the brain that we are being stroked on the skin have their own direct route to the brain, and are not blocked even if the brain is receiving pain impulses from the same area. In fact it's more the opposite, that the stroking impulses are able to deaden the pain impulses," says Line Lken, postgraduate student in neurophysiology at the Sahlgrenska Academy.

The results are being published in the distinguished scientific journal, Nature Neuroscience. The research group examined a group of healthy subjects using a technique called microneurography.

"By inserting a thin electrode into a nerve in the forearm we can listen in on the nerve and pick up signals from one of the thousands of nerve fibres that make up a nerve," explains Associate Professor Hkan Olausson, who is leading the research group behind the discovery, together with Johan Wessberg.

Each individual nerve fibre is responsible for touch signals from roughly a square centimetre of skin. The research team used a specially-designed robot, which brushed over the exact area of skin for which a particular nerve fibre is responsible. The subjects were also asked to rate how pleasant or unpleasant they found the brushing.

"As the nerve signals that were sent in the CT nerves became more frequent, the subjects reported the experience as being increasingly pleasant. Of the skin nerves that we studied, it was only the CT nerves that had this strong link between the frequency of the signals and how pleasant it felt," says researcher Johan Wessberg.


'/>"/>

Contact: Line Lken
line.loken@neuro.gu.se
46-070-565-8861
University of Gothenburg
Source:Eurekalert

Related biology news :

1. Cell response to stress signals predicts tumors in women with common pre-breast cancer
2. Presence of certain antibodies signals healthier teeth and gums
3. Its a unisex brain with specific signals that trigger male behavior
4. Crossed (evolutionary) signals?
5. Signals from the Atlantic salmon highway
6. Millisecond brain signals predict response to fast-acting antidepressant
7. Atomic-resolution views suggest function of enzyme that regulates light-detecting signals in eye
8. Streamlining brain signals for speed and efficacy
9. Novel electric signals in plants
10. New, more direct pathways from outside the cell-to-cell nuclei discovered
11. 4,000 e-Books now available on ScienceDirect
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/29/2019)... STATION, Texas (PRWEB) , ... March 29, 2019 ... ... prefabricated, flexible cleanroom solutions, for its new multi-product cell therapy facility. The new ... expand GenCure’s manufacturing capabilities, providing new state of the art manufacturing capabilities to ...
(Date:3/25/2019)... ... March 25, 2019 , ... ... of clinical and research genetic testing, today announced a new laboratory services agreement ... precision medicine for cancer. Through this laboratory services agreement, Ambry Genetics and ...
(Date:3/19/2019)... ... March 19, 2019 , ... Nativis, Inc., today ... The name change is effective immediately for the clinical stage, therapeutic device company, ... In making the announcement, Chris Rivera, Chief Executive Officer, said, “the renaming of ...
Breaking Biology News(10 mins):
(Date:4/10/2019)... ... April 10, 2019 , ... After more than three months ... new kitchen is equipped with updated appliances and modern lighting and fixtures, and will ... , “We’ve seen tremendous growth in the demand for our team-building events ...
(Date:4/8/2019)... and BOSTON (PRWEB) , ... April 08, 2019 ... ... cloud-based enterprise-class unified communications and collaboration solutions, announced today the launch of their ... to an unprecedented range of business and contact-orientated applications while using CT Cloud ...
(Date:4/4/2019)... ... , ... LeadingBiotech, an exclusive event series bringing biopharma CEOs ... CEO conference to be held May 28-29, 2019 at Boston’s Four Seasons Hotel. ... and discussions from past, present and future change-makers. , LeadingBiotech, formerly ...
(Date:3/27/2019)... ... March 27, 2019 , ... Lachman is sponsoring the event on April 1-4, ... Dublin, Ireland. The executive team on site will be available to discuss strategies and ... the agenda this year. , Executives from Lachman participating at this year’s conference include ...
Breaking Biology Technology: