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Structural Brain Changes in PTSD

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Chronic stress induces structural and hormonal changes in the various brain structures: caudate nucleus, putamen, hippocampus, amygdala, prefrontal cortex in participants with post‐traumatic stress disorder. Based on the results of recent neuroimaging studies on post‐traumatic stress disorder, hippocampus, amygdala, and prefrontal cortex play a key role in triggering the typical symptoms of PTSD. Cortisol, as the primary stress hormone, together with dehydroepiandrosterone, tries to return the body to its original state of homeostasis, but its disturbed concentration levels can modify brain structures volumes. The scanning was performed using a 3.0 T whole‐body scanner (Philips Medical Systems, Best, The Netherlands). Saliva was taken from all examined participants, for the determination of cortisol concentration and its effect on volume changes of the examined brain structures. The strongest headache that might occur during the day was marked on the pain rating scale (0–10). Hamilton depression rating scale was used for rating the depression level. Studies are moving toward the recognition of different biomarkers that would indicate the presence of clinically significant symptoms and a predisposition or increased risk of developing post‐traumatic stress disorder, which can be made by increasing the number of studies, number of participants, and number of different methodologies.

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Publisher

: ., 2016

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Language

English

ISBN/ISSN

9789535127284

Classification

NONE

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Subject(s)

Psychology / Psychopathology

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Cataloger

agus

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