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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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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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.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-020-59815-5</identifier><identifier>PMID: 32081883</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>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</subject><ispartof>Scientific reports, 2020-02, Vol.10 (1), p.3194-3194, Article 3194</ispartof><rights>The Author(s) 2020</rights><rights>This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). 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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. 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Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jeon, Sehyun</au><au>Lee, Yu Jin</au><au>Park, Inkyung</au><au>Kim, Nambeom</au><au>Kim, Soohyun</au><au>Jun, Jin Yong</au><au>Yoo, So Young</au><au>Lee, So Hee</au><au>Kim, Seog Ju</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Resting State Functional Connectivity of the Thalamus in North Korean Refugees with and without Posttraumatic Stress Disorder</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><addtitle>Sci Rep</addtitle><date>2020-02-21</date><risdate>2020</risdate><volume>10</volume><issue>1</issue><spage>3194</spage><epage>3194</epage><pages>3194-3194</pages><artnum>3194</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>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.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>32081883</pmid><doi>10.1038/s41598-020-59815-5</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-2467-5451</orcidid><oa>free_for_read</oa></addata></record> |
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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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