Science, Space and Technology News 2024
A new study shows traumatic brain injuries affect the entire brain, not just the injury site, altering how brain regions communicate and adapt to tasks. This insight into brain plasticity opens new avenues for targeted treatment and rehabilitation, with further research planned to explore long-term changes and intervention strategies.
“Even areas far away from the injury behaved differently immediately afterward,” says first author Samantha Bottom-Tanzer, an MD/PhD student in neuroscience at the School of Medicine. “Traumatic brain injury research tends to focus on the region of injury, but this study makes a good case that the entire brain can be affected, and imaging in distal regions can provide valuable information.”
“Whether paying attention or walking, brains switch states depending on the task you’re doing,” says senior author Chris Dulla, professor and interim chair of neuroscience at the School of Medicine. “After traumatic brain injury, this ability is not as robust, indicating such events are impairing how the brain switches states in a way that we don’t yet understand.”
“This study underscores the complexity of how injury affects a dynamic and always-changing brain,” says Bottom-Tanzer. “Most people think of the brain in one state, but our data indicates there are fluctuations, and it might offer opportunities to explore different interventions for physical therapy, speech therapy, and more.”
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