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Brain Waves Can Tell Us How Much Pain Someone Is In - Slashdot
source link: https://science.slashdot.org/story/23/05/23/2226253/brain-waves-can-tell-us-how-much-pain-someone-is-in
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Brain Waves Can Tell Us How Much Pain Someone Is In
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Brain Waves Can Tell Us How Much Pain Someone Is In 9
Posted by BeauHD
on Tuesday May 23, 2023 @09:25PM from the better-treatment-methods-incoming dept.
A study published in Nature Neuroscience suggests that brain signals can be used to detect the severity of chronic pain, potentially leading to the development of personalized therapies for individuals suffering from severe pain conditions. MIT Technology Review reports: Researchers from the University of California, San Francisco, implanted electrodes in the brains of four people with chronic pain. The patients then answered surveys about the severity of their pain multiple times a day over a period of three to six months. After they finished filling out each survey, they sat quietly for 30 seconds so the electrodes could record their brain activity. This helped the researchers identify biomarkers of chronic pain in the brain signal patterns, which were as unique to the individual as a fingerprint. Next, the researchers used machine learning to model the results of the surveys. They found they could successfully predict how the patients would score the severity of their pain by examining their brain activity, says Prasad Shirvalkar, one of the study's authors.
"The hope is that now that we know where these signals live, and now that we know what type of signals to look for, we could actually try to track them noninvasively," he says. "As we recruit more patients, or better characterize how these signals vary between people, maybe we can use it for diagnosis." The researchers also found they were able to distinguish a patient's chronic pain from acute pain deliberately inflicted using a thermal probe. The chronic-pain signals came from a different part of the brain, suggesting that it's not just a prolonged version of acute pain, but something else entirely.
"The hope is that now that we know where these signals live, and now that we know what type of signals to look for, we could actually try to track them noninvasively," he says. "As we recruit more patients, or better characterize how these signals vary between people, maybe we can use it for diagnosis." The researchers also found they were able to distinguish a patient's chronic pain from acute pain deliberately inflicted using a thermal probe. The chronic-pain signals came from a different part of the brain, suggesting that it's not just a prolonged version of acute pain, but something else entirely.
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