Applicability of neural reserve theory in mild traumatic brain injury

  • Dawson K
  • Batchelor J
  • Meares S
 et al. 
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Abstract

OBJECTIVE: The aim of the current study was to examine whether neural reserve influenced the duration of post-traumatic amnesia (PTA) following mild traumatic brain injury (MTBI). METHOD: The relationship between duration of PTA and both IQ and education was examined in a group of 59 MTBI patients. In addition, the effects of factors that could potentially diminish neural reserve, namely pre-injury hazardous alcohol consumption, pre-injury marijuana use, previous neurological damage, age and post-injury emotional distress on PTA duration were analysed. RESULTS: Significant, negative associations between PTA duration and both IQ and education were revealed. None of the other variables that were examined were significantly related to PTA duration. CONCLUSION: The findings were interpreted as providing preliminary evidence to suggest that reference to neural reserve may help explain between-subject variability in acute response to MTBI.

Author-supplied keywords

  • Brain reserve capacity
  • Cognitive reserve
  • Minor brain injury

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Authors

  • Katie S. Dawson

  • Jennifer Batchelor

  • Susanne Meares

  • Jennifer Chapman

  • Jeno E. Marosszeky

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