In the January 2013 issue of Frontiers of Human Neuroscience researchers from the United Kingdom published their findings that one year after suffering mild traumatic brain injury a group of 36 adult survivors showed cognitive impairment in their short term memory and information processing speed in comparison with a group of 36 aged-matched control subjects who did not have head injuries. In the past there has been some confusion about whether chronic cognitive problems in people with MTBI are primary or the result of post-concussion syndrome symptoms such as headache, insomnia, and depression. The purpose of this research was to test for primary cognitive deficits independently of other issues.
The conclusion was that in this group of 36 survivors (which may or may not be representative of the entire population of MTBI survivors) chronic cognitive problems were a primary outcome of MTBI.
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