By measuring magnetic fields in brain, researchers identify post-traumatic stress disorder biomarker

Researchers have identified a biological marker in the brains of those exhibiting post-traumatic stress disorder. A group of 74 United States veterans were involved in the study, which for the first time objectively diagnoses PTSD using magnetoencephalography (MEG), a non-invasive measurement of magnetic fields in the brain. It's something conventional brain scans such as an X-ray, CT, or MRI have failed to do.

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