Resting State Functional Connectivity of the Thalamus in North Korean Refugees with and without Posttraumatic Stress Disorder

In posttraumatic stress disorder (PTSD), functional connectivity (FC) between the thalamus and other brain areas has yet to be comprehensively investigated. The present study explored resting state FC (rsFC) of thalamus and its associations with trauma-related features. The included subjects were No...

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Veröffentlicht in:Scientific reports 2020-02, Vol.10 (1), p.3194-3194, Article 3194
Hauptverfasser: Jeon, Sehyun, Lee, Yu Jin, Park, Inkyung, Kim, Nambeom, Kim, Soohyun, Jun, Jin Yong, Yoo, So Young, Lee, So Hee, Kim, Seog Ju
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container_title Scientific reports
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creator Jeon, Sehyun
Lee, Yu Jin
Park, Inkyung
Kim, Nambeom
Kim, Soohyun
Jun, Jin Yong
Yoo, So Young
Lee, So Hee
Kim, Seog Ju
description In posttraumatic stress disorder (PTSD), functional connectivity (FC) between the thalamus and other brain areas has yet to be comprehensively investigated. The present study explored resting state FC (rsFC) of thalamus and its associations with trauma-related features. The included subjects were North Korean refugees with PTSD (n = 23), trauma-exposed North Korean refugees without PTSD (trauma-exposed control [TEC] group, n = 22), and South Korean healthy controls (HCs) without traumatic experiences (HC group, n = 40). All participants underwent psychiatric evaluation and functional magnetic resonance imaging (fMRI) procedures using the bilateral thalamus as seeds. In the TEC group, the negative rsFC between each thalamus and its contralateral postcentral cortex was stronger relative to the PTSD and HC groups, while positive rsFC between the left thalamus and left precentral cortex was stronger in the HC group compared to the PTSD and TEC groups. Thalamo-postcentral rsFC was positively correlated with the CAPS total score in the TEC group, and with the number of traumatic experiences in the PTSD group. The present study identified the difference of thalamic rsFC alterations among traumatized refugees and HCs. Negative rsFC between the thalamus and somatosensory cortices might be compensatory changes after multiple traumatic events in refugees.
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subjects 59/36
631/378/1831
692/699/476/1830
Adult
Brain mapping
Brain Mapping - methods
Case-Control Studies
Democratic People's Republic of Korea
Female
Functional magnetic resonance imaging
Humanities and Social Sciences
Humans
Magnetic Resonance Imaging - methods
Male
multidisciplinary
Neural networks
Neuroimaging
Post traumatic stress disorder
Refugees
Reproducibility of Results
Republic of Korea
Resilience, Psychological
Science
Science (multidisciplinary)
Seeds
Somatosensory cortex
Stress Disorders, Post-Traumatic - diagnostic imaging
Stress Disorders, Post-Traumatic - psychology
Stress, Psychological
Thalamus
Thalamus - diagnostic imaging
Trauma
title Resting State Functional Connectivity of the Thalamus in North Korean Refugees with and without Posttraumatic Stress Disorder
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