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Magnetic Resonance Spectroscopy of Posttraumatic Stress Disorder Posttraumatic stress disorder (PTSD) is an anxiety disorder that develops in persons who have experienced emotional or physical stress that would be extremely traumatic for most individuals. Combat experience is one example. Such individuals can re-experience their trauma through dreams or waking thoughts and have a variety of other emotional and cognitive symptoms. Recently, neuroimaging studies have tried to identify possible brain deficits for individuals with PTSD, with particular interest in the hippocampus, a region of the brain associated with short-term memory.
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