New Mexico Car Accident

Brain Injury May Occur Within One Millisecond After Head Hits Car Windshield

ALBUQUERQUE, N.M. — Research by a Sandia National Laboratories engineer and a University of New Mexico Health Sciences Center neurologist shows that brain injury may occur within one millisecond after a human head is thrust into a windshield as a result of a car accident.

This happens prior to any overall motion of the head following impact with the windshield and is a new concept to consider for doctors interested in traumatic brain injury (TBI).

Paul Taylor of Sandia’s Multiscale Computational Materials Methods Department and Corey Ford, neurologist at UNM’s Department of Neurology and MIND Imaging Center, made the discovery after modeling early-time wave interactions in the human head following impact with a windshield, one scenario leading to the onset of TBI.

Sandia is a National Nuclear Security Administration laboratory.

TBI is associated with loss of functional capability of the brain to perform cognitive and memory tasks, process information, and perform a variety of motor and coordination functions. More than five million people in the U.S. live with disabilities associated with TBI.

“In the past not a lot of attention was paid to modeling early-time events during TBI,” Taylor says. “People would — for example — be in a car accident where they hit their head on a windshield, feel rattled, go to an emergency room, and then be released. We were interested in why people with head injuries of similar severity often have very different outcomes in memory function or returning to work.”

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