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Rapid emotional processing in relation to trauma-related symptoms as revealed by magnetic source imaging

Rapid emotional processing in relation to trauma-related symptoms as revealed by magnetic source imaging

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Prüfsumme: MD5:dd0bd11e5ccf41a8776b5410122c7485

SCHALINSKI, Inga, James MORAN, Maggie SCHAUER, Thomas ELBERT, 2014. Rapid emotional processing in relation to trauma-related symptoms as revealed by magnetic source imaging. In: BMC Psychiatry. 14(1), 193. eISSN 1471-244X

@article{Schalinski2014Rapid-28665, title={Rapid emotional processing in relation to trauma-related symptoms as revealed by magnetic source imaging}, year={2014}, doi={10.1186/1471-244X-14-193}, number={1}, volume={14}, journal={BMC Psychiatry}, author={Schalinski, Inga and Moran, James and Schauer, Maggie and Elbert, Thomas}, note={Article Number: 193} }

Elbert, Thomas Moran, James Schalinski, Inga Schauer, Maggie 2014-08-05T09:02:55Z Rapid emotional processing in relation to trauma-related symptoms as revealed by magnetic source imaging 2014 Schalinski, Inga BMC Psychiatry ; 14 (2014). - 193 eng Elbert, Thomas Background<br />Traumatic stress leads to functional reorganization in the brain and may trigger an alarm response. However, when the traumatic event produces severe helplessness, the predominant peri-traumatic response may instead be marked by a dissociative shutdown reaction. The neural correlates of this dissociative shutdown were investigated by presenting rapidly presented affective pictures to female participants with posttraumatic stress disorder (PTSD), and comparing responses to a Non-PTSD control group.<br /><br />Methods<br />Event-related-magnetic-fields were recorded during rapid visual serial presentation of emotionally arousing stimuli (unpleasant or pleasant), which alternated with pictures with low affective content (neutral). Neural sources, based on the L2-surface-minimum-norm, correlated with the severity of the symptom clusters: PTSD, depression and shutdown dissociation.<br /><br />Results<br />For the early cortical response (60 to 110 ms), dissociation and PTSD symptom severity show similar spatial distributions of correlates for unpleasant stimuli. Cortical networks that could be involved in the relationships seem to be widespread.<br /><br />Conclusion<br />We conclude that shutdown dissociation, PTSD and depression all have distinct effects on early processing of emotional stimuli. Moran, James 2014-08-05T09:02:55Z deposit-license Schauer, Maggie

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

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