Cited by 177Functional Brain Connectivity StudiesNeural and Behavioral Psychology StudiesTreatment of Major Depression

Resting-state functional connectivity of the amygdala and longitudinal changes in depression severity in adolescent depression

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Connolly, Colm G., Ho, Tiffany C., Blom, Eva Henje, LeWinn, Kaja Z., Sacchet, Matthew D., Tymofiyeva, Olga, Simmons, Alan N., Yang, Tony T.·2017·Journal of Affective Disorders

Abstract

Background The incidence of major depressive disorder (MDD) rises during adolescence, yet the neural mechanisms of MDD during this key developmental period are unclear. Altered amygdala resting-state functional connectivity (RSFC) has been associated with both adolescent and adult MDD, as well as symptom improvement in response to treatment in adults. However, no study to date has examined whether amygdala RSFC is associated with changes in depressive symptom severity in adolescents.Method We examined group differences in amygdala RSFC between medication-naïve depressed adolescents (N=48) and well-matched healthy controls (N=53) cross-sectionally. We then longitudinally examined whether baseline amygdala RSFC was associated with change in depression symptoms three months later in a subset of the MDD group (N=24).Results Compared to healthy controls, depressed adolescents showed reduced amygdala-based RSFC with the dorsolateral prefrontal cortex (DLPFC)and the ventromedial prefrontal cortex (VMPFC). Within the depressed group, more positive baseline RSFC between the amygdala and insulae was associated with greater reduction in depression symptoms three months later.Limitations Only a subset of depressed participants was assessed at follow-up and treatment type and delivery were not standardized.Conclusions Adolescent depression may be characterized by dysfunction of frontolimbic circuits (amygdala-DLPFC, amygdala-VMPFC) underpinning emotional regulation, whereas those circuits (amygdala-insula) subserving affective integration may index changes in depression symptom severity and may therefore potentially serve as a candidate biomarker for treatment response. Furthermore, these results suggest that the biomarkers of MDD presence are distinct from those associated with change in depression symptoms over time.

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  1. Andersson JLR Jenkinson M Smith SM Non-linear registration, aka Spatial normalisation (No. TR07JA2) 2007 FMRIB, University of Oxford Oxford, UK
  2. Öngür D Price JL The organization of networks within the orbital and medial prefrontal cortex of rats, monkeys and humans Cereb cortex 2000 10 206 219 10.1093/cercor/10.3.206 10731217 · DOI · Paper page

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Authors
Connolly, C. G., Ho, T. C., Blom, E. H., LeWinn, K. Z., Sacchet, M. D., Tymofiyeva, O., Simmons, A. N., & Yang, T. T.
Affiliations
  • University of California, San Francisco (US)
  • University of California San Diego (US)
Corresponding author
Connolly, Colm G.
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2017-01
Volume
207
Pages
86-94
ISSN
0165-0327 (ISSN-L)
OpenAlex
W2521795478
Cited by
177
References
99
Citations by year
2026: 21 · 2025: 21 · 2024: 19 · 2023: 20 · 2022: 12 · 2021: 25 · 2020: 21 · 2019: 18 · 2018: 14 · 2017: 5 · 2016: 1
FWCI
8.06
Type
journal article
Language
en
Open access
Locations
  • Journal of Affective Disorders (acceptedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Swedish Research Council (350-2012-303)
  • Swedish Society of Medicine (SLS244671)
  • Brain and Behavior Research Foundation
  • National Institute of Mental Health (R01MH085734, K01MH097978, R21AT009173)
  • National Science Foundation (NSF) (0801700, DGE-1147470)
  • American Foundation for Suicide Prevention (PDF-1-064-13)
  • Center of Excellence in Stress and Mental Health and by a Veteran’s Affairs Merit Award (I01-CX000715)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Functional Brain Connectivity Studies
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
adolescent depression, major depressive disorder, amygdala, resting-state functional connectivity, dorsolateral prefrontal cortex, ventromedial prefrontal cortex, insula, emotion regulation, affective integration, treatment response biomarkers
MeSH terms
Self-Control, Adolescent, Amygdala, Brain, Cerebral Cortex, Depression, Major Depressive Disorder, Depressive Disorder, Major, Emotions, Female, Humans, Longitudinal Studies, Magnetic Resonance Imaging, Male, Neural Pathways, Rest, Severity of Illness Index, Case-Control Studies, Prefrontal Cortex, Disease Progression, Functional Neuroimaging

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