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Oscillatory magnetic brain activity is related to dissociative symptoms and childhood adversities : A study in women with multiple trauma

Oscillatory magnetic brain activity is related to dissociative symptoms and childhood adversities : A study in women with multiple trauma

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SCHALINSKI, Inga, James K. MORAN, Thomas ELBERT, Vanessa REINDL, Christian WIENBRUCH, 2017. Oscillatory magnetic brain activity is related to dissociative symptoms and childhood adversities : A study in women with multiple trauma. In: Journal of Affective Disorders. 218, pp. 428-436. ISSN 0165-0327. eISSN 1573-2517. Available under: doi: 10.1016/j.jad.2017.05.009

@article{Schalinski2017-08Oscil-39684, title={Oscillatory magnetic brain activity is related to dissociative symptoms and childhood adversities : A study in women with multiple trauma}, year={2017}, doi={10.1016/j.jad.2017.05.009}, volume={218}, issn={0165-0327}, journal={Journal of Affective Disorders}, pages={428--436}, author={Schalinski, Inga and Moran, James K. and Elbert, Thomas and Reindl, Vanessa and Wienbruch, Christian} }

Moran, James K. Wienbruch, Christian Moran, James K. eng 2017-07-28T12:59:25Z Elbert, Thomas Schalinski, Inga 2017-08 Wienbruch, Christian 2017-07-28T12:59:25Z Reindl, Vanessa Elbert, Thomas Reindl, Vanessa Oscillatory magnetic brain activity is related to dissociative symptoms and childhood adversities : A study in women with multiple trauma Background<br />Individuals with trauma-related disorders are complex and heterogeneous; part of this complexity derives from additional psychopathology like dissociation as well as environmental adversities such as traumatic stress, experienced throughout the lifespan. Understanding the neurophysiological abnormalities in Post-traumatic stress disorder (PTSD) requires a simultaneous consideration of these factors.<br /><br />Methods<br />Resting state magnetoencephalography (MEG) recordings were obtained from 41 women with PTSD and comorbid depressive symptoms, and 16 healthy women. Oscillatory brain activity was extracted for five frequency bands and 11 source locations, and analyzed in relation to shutdown dissociation and adversity-related measures.<br /><br />Results<br />Dissociative symptoms were related to increased delta and lowered beta power. Adversity-related measures modulated theta and alpha oscillatory power (in particular childhood sexual abuse) and differed between patients and controls.<br /><br />Limitations<br />Findings are based on women with comorbid depressive symptoms and therefore may not be applicable for men or groups with other clinical profiles. In respect to childhood adversities, we had no reliable source for the early infancy.<br /><br />Conclusion<br />Trauma-related abnormalities in neural organization vary with both exposure to adversities as well as their potential to evoke ongoing shutdown responses. Schalinski, Inga

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