Researchers Find Area in Brain Which is Responsible for Making Us Feel Pain

by Dr. Trupti Shirole on March 10, 2015 at 4:27 PM

 Researchers Find Area in Brain Which is Responsible for Making Us Feel Pain
Researchers at the 'Oxford Center for Functional Magnetic Resonance Imaging of the Brain' have found the area in brain which is responsible for making us feel pain. Scientists used a new brain imaging technique to look at people experiencing pain over many hours and found that activity in only one brain area, the dorsal posterior insula, reflected the participants' ratings of how much the pain hurt.

The findings could help detect pain in people with limited communication abilities, such as those in a coma, small children and dementia patients. Professor Irene Tracey, University of Oxford, whose team made the discovery, said, "Pain is a complex, multidimensional experience, which causes activity in many brain regions involved with things like attention, feeling emotions such as fear, locating where the pain is, and so on. But the dorsal posterior insula seemed to be specific to the actual 'hurt level' of pain itself."

The researchers tracked brain activity in 17 healthy volunteers who had a cream containing capsaicin (the active ingredient in chillies) applied onto their right leg, causing a burning sensation. The volunteers indicated how much this burning sensation hurt them. Once the pain sensation began to fade, the researchers 'rekindled' the burning sensation by putting a hot water bottle where the cream was applied. A few minutes later, they provided participants pain relief by switching to a cooling water bottle. The study participants' ratings of how much the pain hurt accordingly went up and then down.

The research team hopes that changing activity in the dorsal posterior insula will help treat pain where other methods have failed. The study was published in the journal Nature Neuroscience.

Source: Medindia

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