Department of Psychiatry, Child and Adolescent Psychiatry; Eunice Kennedy Shriver Center
Mental and Social Health | Mental Disorders | Neuroscience and Neurobiology | Pediatrics | Psychiatry | Psychiatry and Psychology
Background: As mood dysregulation and hyperarousal are overlapping and prominent features of posttraumatic stress disorder (PTSD), and mood disorders (MD) including bipolar disorder (BD), we aimed to clarify the role of trauma and MD on the resting state functional connectivity (RSFC) of amygdala in MD youth with or without trauma exposure, and healthy controls (HC).
Methods: Of 23 subjects, 21 completed the magnetic resonance imaging (MRI) protocol, 5 were excluded for subject motion, leaving final sample size of 16: nine subjects with MD (5/9 with trauma), and 7 HC. Youth were assessed with Schedule for Affective Disorders and Schizophrenia for School Aged Children-Present and Lifetime Version (K-SADS-PL), and other behavioral measures including Young Mania Rating Scale (YMRS). Imaging data were acquired using functional MRI in 3-T scanner. Imaging included T1-weighted structural MRI and 6-min resting state acquisition.
Results: In between group analysis, the average correlation coefficients between left anterior cingulate cortex (Acc) and left insula cortex with left amygdala regions were significantly larger in HC compared to the patient population. Connectivity between left amygdala and left cingulate cortex shows a significant negative correlation with YMRS severity.
Conclusions: In this preliminary study, MD with trauma youth had more manic symptoms and difficulties regulating anger. While MD youth showed reduced RSFC of left amygdala with left acc and left insula, no significant difference between the subgroups of children with MD was observed. However, when looking at both clinical groups together, we observed a significant correlation of RSFC of left amygdala to left acc, and YMRS scores.
amygdala, magnetic resonance imaging, mood regulation, resting state functional connectivity, trauma
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Copyright © 2020 Dvir, Kennedy, Hodge, Pegram, Denietolis and Frazier. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
DOI of Published Version
Dvir Y, Kennedy DN, Hodge SM, Pegram D, Denietolis B, Frazier JA. Psychiatric Symptomatology, Mood Regulation, and Resting State Functional Connectivity of the Amygdala: Preliminary Findings in Youth With Mood Disorders and Childhood Trauma. Front Psychiatry. 2020 Sep 18;11:525064. doi: 10.3389/fpsyt.2020.525064. PMID: 33192645; PMCID: PMC7531261. Link to article on publisher's site
Frontiers in psychiatry
Dvir Y, Kennedy DN, Hodge SM, Pegram D, Denietolis B, Frazier JA. (2020). Psychiatric Symptomatology, Mood Regulation, and Resting State Functional Connectivity of the Amygdala: Preliminary Findings in Youth With Mood Disorders and Childhood Trauma. Psychiatry Publications. https://doi.org/10.3389/fpsyt.2020.525064. Retrieved from https://escholarship.umassmed.edu/psych_pp/956
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