Whether a person's injury will lead to chronic pain may depend on the level of communication between two parts of their brain, a new study finds.
According to the report, published in the current issue of Nature Neuroscience, brain regions related to emotional and motivational behavior seem to communicate more in those who develop chronic pain.
"For the first time, we can explain why people who may have the exact same initial pain either go on to recover or develop chronic pain," senior study author A. Vania Apkarian, a professor of physiology at Northwestern University Feinberg School of Medicine in Chicago, said in a university news release.
"The injury by itself is not enough to explain the ongoing pain," Apkarian added. "It has to do with the injury combined with the state of the brain."
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