Journal article
Structural equation modeling of treatment-related changes in neural connectivity for youth with PTSD
Journal of affective disorders, v 334, pp 50-59
01 Aug 2023
PMID: 37127117
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Previous studies suggest that improvement in symptoms of posttraumatic stress disorder (PTSD) is accompanied by changes in neural connectivity, however, few studies have investigated directional (effective) connectivity. The current study assesses treatment-related changes in effective connectivity in youth with PTSD undergoing Trauma-Focused Cognitive Behavioral Therapy (TF-CBT).
Functional MRI scans before and after 16 weeks of TF-CBT for 20 youth with PTSD, or the same time interval for 20 healthy controls (HC) were included in the analysis. Structural equation modeling was used to model group differences in directional connectivity at baseline, and changes in connectivity from pre- to post-treatment.
At baseline, the PTSD group, relative to the HC group, had significantly greater connectivity in the path from dorsal cingulate to anterior cingulate and from dorsal cingulate to posterior cingulate corticies. From pre- to post-treatment, connectivity in these paths decreased significantly in the PTSD group, as did connectivity from right hippocampus to left superior temporal gyrus. Connectivity from the left amygdala to the lateral orbital frontal cortex was significantly lower in PTSD vs HC at baseline, but did not change from pre- to post-treatment.
Although based on a small sample, these results converge with previous studies in suggesting a central role for the dorsal cingulate cortex in PTSD symptoms. The direction of this connectivity suggests that the dorsal cingulate is the source of modulation of anterior and posterior cingulate cortex during trauma-focused cognitive behavioral therapy.
•Youth with PTSD compared to controls have greater connectivity from dorsal cingulate to anterior cingulate and posterior cingulate corticies.•From pre- to post-treatment, connectivity in these paths decreased significantly in the PTSD group.•Connectivity from the amygdala to the lateral orbital frontal cortex was significantly lower in PTSD vs HC at baseline, but did not change with treatment.•These results converge with previous studies in suggesting a central role for the dorsal cingulate cortex in PTSD.
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Details
- Title
- Structural equation modeling of treatment-related changes in neural connectivity for youth with PTSD
- Creators
- Amy S. Garrett - The University of Texas Health Science Center at San AntonioWei Zhang - Research Imaging Institute, University of Texas Health Science Center San Antonio, United States of AmericaLarry R. Price - Texas State UniversityJeremyra Cross - The University of Texas Health Science Center at San AntonioNatalia Gomez-Giuliani - The University of Texas Health Science Center at San AntonioMarie-Jose van Hoof - Department of Child and Adolescent Psychiatry, Amsterdam University Medical Center, the NetherlandsVictor Carrion - Stanford UniversityJudith A. Cohen - Drexel University
- Publication Details
- Journal of affective disorders, v 334, pp 50-59
- Publisher
- Elsevier
- Number of pages
- 10
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- College of Medicine
- Web of Science ID
- WOS:001034216300001
- Scopus ID
- 2-s2.0-85156141228
- Other Identifier
- 991021861166304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Clinical Neurology
- Psychiatry