In Brief Concussion has been viewed historically as a transient injury with no evidence supporting the existence of persistent effects. However, our recent work demonstrates electroencephalographic and motor control changes in otherwise healthy individuals with a history of concussion. We therefore hypothesize that concussive and subconcussive head impacts set about a cascade of pathological events that accelerates declines in cognitive function typically associated with the aging process. Concussive and subconcussive impacts may accelerate cognitive declines resulting in earlier and magnified cognitive impairments.
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Broglio et al. (2012) studied this question.
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