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A Neuroscientific Approach to the Examination of Concussions in Student-Athletes
Published on: December 8, 2014
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The persistent influence of concussive injuries on cognitive control and neuroelectric function
Robert D Moore1, Charles H Hillman, Steven P Broglio
1Department of Kinesiology and Community Health, University of Illinois, Urbana-Champaign.
Journal of Athletic Training
|January 1, 2014
Summary
A history of childhood sports concussion may lead to lasting cognitive deficits in young adults, affecting attention and response accuracy. Neuroelectric measures reveal persistent neurocognitive impairments following concussion.
Area of Science:
- Neuroscience
- Sports Medicine
- Cognitive Psychology
Background:
- Sport-related concussions are increasingly recognized for their negative impact on cognitive function and brain health.
- Early life concussion may have long-term consequences on neurocognitive outcomes in young adulthood.
Purpose of the Study:
- To investigate the long-term effects of early-life concussion on cognitive control and neuroelectric function in young adults.
- To assess neurocognitive performance and event-related potentials in individuals with and without a history of childhood concussion.
Main Methods:
- A cross-sectional study was conducted in a research laboratory setting.
- Forty young adults, categorized by concussion history (0 or 1+ injuries before age 18), completed cognitive tasks (oddball, switch, flanker).
- Behavioral data (reaction time, accuracy) and electroencephalographic (EEG) measures, including event-related potentials (ERPs), were collected.
Main Results:
- The concussion group showed reduced P3 amplitude during target detection and in a challenging switch task condition.
- Increased N2 amplitude was observed in the concussion group during the heterogeneous switch task condition.
- A history of concussion was linked to lower response accuracy on the flanker task.
Conclusions:
- Individuals with a history of concussion may exhibit persistent neurocognitive deficits, including impaired attention allocation and increased stimulus-response conflict.
- Neuroelectric measures, specifically ERPs, appear sensitive to the selective and enduring cognitive impairments resulting from concussion.
- These findings highlight the potential for long-term neurocognitive consequences of early-life sports-related concussions.
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