What leaves physical footprints on your brain?
July 27th 2008 21:26
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There is
a bold push by the Department of Defense to address PTSD, the psychological disorder that will haunt an estimated 30 percent of the veterans returning from the current two wars, according to the Pentagon. Forty thousand veterans from Iraq and Afghanistan, Pentagon officials say, have already been diagnosed with PTSD, which is defined as an anxiety disorder triggered by exposure to traumatic events; symptoms can include nightmares, flashbacks and panic attacks.
Left untreated, clinicians say, patients with PTSD are more likely to engage in anti-social behaviors such as alcohol and drug abuse. The disorder, neurologists are now learning, can also lead to long-term maladies, such as Alzheimer's and dementia.
Left untreated, clinicians say, patients with PTSD are more likely to engage in anti-social behaviors such as alcohol and drug abuse. The disorder, neurologists are now learning, can also lead to long-term maladies, such as Alzheimer's and dementia.
"San Francisco physicist Norbert Schuff captured his colleagues' attention when he presented colorful brain images of U.S. soldiers who had returned from Iraq and Afghanistan and were diagnosed with post-traumatic stress disorder.
The yellow areas, Schuff explained during his presentation at the city's Veterans Affairs Medical Center, showed where the hippocampus, which plays major roles in short-term memory and emotions, had atrophied. The red swatches marked hyperfusion - increased blood flow - in the prefrontal cortex, the region responsible for conflict resolution and decision-making. Compared with a soldier without the affliction, the PTSD brain had lost 5 to 10 percent of its gray matter volume, indicating yet more neuron damage"
"But we're still in the infancy of neuroimaging," Schuff cautioned later in his office. "Do you get PTSD because you have a small hippocampus? Or does a small hippocampus mean you'll develop PTSD? That, we still don't know."
The are "closer to finding the biological markers that distinguish a brain affected by PTSD. As the technology of brain imaging improves and the resulting data are refined, doctors believe that one day they will be able to look at a computer screen and see PTSD as clearly as they now see a brain tumor."
These are the footprints on the brain of PTSD sufferers, who suffered the disorder due to their active duty to support their country and the world. Don't overlook the very valuable contributions they have made.
From an article in the San Francisco chronicle.
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