Changes of cognitive functioning following mild traumatic brain injury over a 3-month period

Brain Inj. 2008 Sep;22(10):740-51. doi: 10.1080/02699050802336989.


Primary objective: To examine the cognitive functioning in patients with complicated mild traumatic brain injury immediately post-injury and at 1 and 3 months post-injury. RESEARCH DESIGN, METHODS, AND PROCEDURES: Between-group comparisons were adopted for this study. Specifically, both patients and healthy controls were administered neuropsychological assessments measuring attention, memory and executive functions at three time points.

Results: Findings indicate that patients performed significantly more poorly in information processing and divided attention, sustained attention, verbal recognition and verbal fluency immediately post-injury. While the information processing and divided attention of mild TBI patients improved at 1 month and returned to normal at 3 months post-injury, their sustained attention remained significantly poorer over the 3-month period.

Conclusions: Findings suggest that attention dysfunction is noticeable immediately following a mild TBI. Different attention functions appear to recover at a different pace over time, suggesting that the condition may have a differential impact on the different sub-types of attention.

Publication types

  • Multicenter Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Attention*
  • Brain Injuries / complications*
  • Brain Injuries / physiopathology
  • Brain Injuries / psychology
  • Cognition Disorders / etiology*
  • Cognition Disorders / physiopathology
  • Cognition Disorders / psychology
  • Female
  • Follow-Up Studies
  • Humans
  • Injury Severity Score
  • Male
  • Mental Processes / physiology
  • Middle Aged
  • Neuropsychological Tests
  • Recovery of Function / physiology
  • Young Adult