Many people who have had a significant brain injury will experience changes in their thinking (cognitive) skills. Traumatic brain injury can result in problems with many skills, including:
Intellectual problems
Cognitive problems
Executive functioning problems
and
Communication problems
see
http://www.mayoclinic.org/diseases-conditions/traumatic-brain-injury/basics/complications/con-20029302
and
https://www.facebook.com/livingwithheadinjury/
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