The study provides more evidence that the psychological wounds of war may persist and appear in various manifestations over time.
"Our finding indicating that the relationship between PTSD and attentional impairment is minimal early on but strengthens over time is consistent with previous research," the authors wrote. The study also demonstrates "that psychiatric symptoms often reflect more extensive biological changes, including those affecting brain function."
The study was performed by researchers at Veterans Affairs Boston Healthcare System and Boston University. It is published in the Archives of General Psychiatry.