Sustained attention in combat-related posttraumatic stress disorder |
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Authors: | Julia Golier Rachel Yehuda Barbara Cornblatt Philip Harvey Doug Gerber Robert Levengood |
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Institution: | (1) Department of Veterans Affairs, USA;(2) Department of Psychiatry, Mount Sinai School of Medicine, USA;(3) 116A, Bronx VA Medical Center, 130 West Kingsbridge Road, 10468 Bronx, NY |
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Abstract: | There is substantial evidence that PTSD patients have information processing abnormalities for stimuli that are highly relevant
to the traumas they have endured. The goal of the present study was to examine whether this extends to neutral stimuli as
well. Twenty-four male Vietnam combat veterans with PTSD were compared to fifteen normal male comparison subjects on their
performance on a sensitive measure of sustained attention, the Continuous Performance Test-Identical Pairs version (CPT-IP).
PTSD subjects did not differ from controls in their ability to discriminate target stimuli from background noise on the CPT.
Additionally they performed as well as controls, even in the presence of external distraction. Thus, this study did not find
a generalized deficit in attention associated with PTSD on the CPT-IP. Nevertheless, further clarification of the nature of
the information processing disturbance in PTSD is warranted. |
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