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Tracking the Source of 'Selective Attention' Problems in Brain-Injured Vets

The obvious cognitive symptoms of minor traumatic brain injury can dissipate within a few days, but blast-exposed veterans may continue to have problems focusing attention on one sound source and ignoring others, an ability known as "selective auditory attention.? According to a new study, such apparent "hearing" problems actually may be caused by diffuse injury to the brain's prefrontal lobe.
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