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Post-traumatic stress disorder and head injury as a dual diagnosis: "islands" of memory as a mechanism.
  1. N S King
  1. Clinical Psychology Department, Rivermead Rehabilitation Centre, Oxford, UK.


    This case study describes post-traumatic stress disorder (PTSD) and head injury after a road traffic accident involving a pedestrian. Previous studies have proposed two mechanisms by which this dual diagnosis may occur: (1) when post-traumatic amnesia and retrograde amnesia are small or non-existent and (2) when non-declarative memory systems for the traumatic event are in operation. This case study demonstrates a third mechanism--"islands" of memory within post-traumatic amnesia.

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