History Of Multiple Self-Reported Concussions Is Not Associates with Reduced Cognitive Abilities
- Authors: Bruce, Echemendia
- Publication: neurosurgery-online.com
- Date: Aug 26, 2008
Abstract:
OBJECTIVE: The long-term impact of sports-related concussion is uncertain. Several
studies using traditional neuropsychological measures have found a relationship between
a previous history of concussion and reduced cognitive abilities. In contrast, studies
using computerized neuropsychological measures have typically found no relationship
between concussion history and cognition. In the present study, we examined the association
between a self-reported concussion history and cognition using traditional and
computer-based neuropsychological tests.
METHODS: A computerized neuropsychological battery was administered to a sample
of 858 collegiate male athletes. Of this sample, 298 athletes reported a history of
concussion. A traditional neuropsychological battery was administered to a separate
sample of 479 male collegiate athletes, 187 of whom reported a history of concussion.
Finally, both a computerized and a traditional neuropsychological battery were administered
to a third distinct sample of 175 male collegiate athletes, 57 of whom reported
a history of concussion. Concussion history was assessed via self-report. None of the athletes
had been concussed in the 6 months before testing.
RESULTS: No significant association was found between self-reported concussion history
and performance on either computerized or traditional neuropsychological tests.
CONCLUSION: Findings suggest that athletes who report a distant history of concussion
have minimal enduring neurocognitive deficits. Given conflicting findings in the
literature, prospective studies that attempt to identify moderating factors are necessary
to help determine who is at risk for long-term cognitive difficulties after concussion.