Excerpt from: Medpage Today (click for full article)
Mild traumatic brain injury (TBI) disrupts the brain's "default mode" in a way that shows up on functional MRI and correlates with symptoms, researchers found.
Compared with normal controls, patients with posttraumatic symptoms soon after mild TBI showed reduced connectivity in some regions, and increased connectivity in others within the network that the brain uses during inactivity for information processing and maintenance.
These abnormalities were associated with cognitive dysfunction, depression, anxiety, fatigue, and post-concussion syndrome, reported Yulin Ge, MD, of the NYU School of Medicine in New York City, and colleagues in the December issue of Radiology.
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