OBJECTIVE: The authors examined the association of cognitive impairment
with posttraumatic stress disorder (PTSD) and other psychiatric diagnoses
known to affect cognitive functioning. METHOD: The results of standardized
neuropsychological tests were compared in four groups of Vietnam veterans:
veterans with both a lifetime history of PTSD and a current diagnosis of
depression, anxiety, or substance abuse; veterans with only a PTSD
diagnosis; veterans with only a current diagnosis of depression, anxiety,
or substance abuse; and veterans with none of these diagnoses. RESULTS:
Veterans with both PTSD and concurrent diagnoses. exhibited more impairment
in cognitive functioning than did veterans without these diagnoses.
CONCLUSIONS: Cognitive deficits seen among persons diagnosed with PTSD may
be associated with their concomitant diagnoses.