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How long does it take to recover from a mild concussion?
H Hugenholtz1, D T Stuss, L L Stethem
1School of Medicine, University of Ottawa, Canada.
Neurosurgery
|May 1, 1988
Summary
Mild concussions significantly impair attention and information processing, even without neurological deficits. These cognitive deficits, particularly on complex reaction time tests, can persist for weeks after injury.
Area of Science:
- Neuroscience
- Cognitive Psychology
Background:
- Mild concussions are common injuries.
- Neurological deficits are not always apparent after mild concussions.
Purpose of the Study:
- To investigate the impact of mild concussions on cognitive functions.
- To assess reaction time (RT) performance in concussed individuals.
Main Methods:
- Neuropsychological testing including simple and choice reaction time (RT) tests.
- Comparison of 22 mild concussion patients with matched controls over 3 months.
- Neurological examination and error analysis included.
Main Results:
- No significant neurological deficits or errors differences were found.
- Concussed individuals were slower on choice RT tests, indicating attentional and information processing deficits.
- Impairments persisted for up to 3 months post-injury.
Conclusions:
- Mild concussions cause significant attentional and information processing impairments.
- Standard neurological exams may not detect these subtle cognitive deficits.
- Neuropsychological tests are crucial for identifying post-concussion impairments.