The Journal of neuropsychiatry and clinical neurosciences · 2025
Depression Symptoms Associated With Clinical Symptoms, Disability, and Functional Connectivity After Traumatic Brain Injury.
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Arora Joshitha, Ossowski Alexandra, Patchell Abigail, Jamison Keith W, Kuceyeski Amy, Singh Jayden, Garetti Jacob, Cappillo Maddie, Hamill Lilah, Blunt Emily, Kaunzner Ulrike W, Winchell Robert, Yee-Oleksy Stephanie, Khedr Shahenda, Dams-O'Connor Kristen, Schiff Nicholas D, Liston Conor, Shah Sudhin, Jaywant Abhishek
Аннотация
OBJECTIVE: Depression is known to be highly heterogeneous, with distinct clusters of symptoms. Whether this heterogeneity exists after traumatic brain injury (TBI) and how clusters of depression symptoms after TBI may relate to clinical symptoms, functional outcomes, and underlying neurobiology are largely unknown.
METHODS: The authors investigated depression symptom clusters after subacute TBI and evaluated their clinical, functional, and neural correlates. Community-dwelling participants with complicated mild, moderate, or severe TBI (N=53) were evaluated on average 5 months postinjury. Participants were administered the 17-item Hamilton Depression Rating Scale (HDRS), the Rivermead Post-Concussion Symptom Questionnaire, the Glasgow Outcome Scale-Extended, and a neuropsychological test battery. A subset of participants completed a resting-state functional MRI scan.
RESULTS: Principal component analysis on the HDRS items yielded a two-component solution that accounted for 40% of the variance. Component 1 encompassed mood and affective symptoms as well as agitation and loss of libido, and component 2 encompassed anxiety, insomnia, and most somatic symptoms of the HDRS. Component 2 was associated with greater TBI symptom burden and disability and worse executive functions but not resting-state functional connectivity. Component 1 was not related to TBI symptom burden, neuropsychological function, or disability, but there was a trend-level association between higher negative affect scores and greater functional connectivity between the dorsal attention and default mode networks.
CONCLUSIONS: The findings suggest that depression after TBI may not be a unitary syndrome but rather may be composed of clusters of symptoms that have different associations with TBI symptom burden, disability, and brain connectivity.
METHODS: The authors investigated depression symptom clusters after subacute TBI and evaluated their clinical, functional, and neural correlates. Community-dwelling participants with complicated mild, moderate, or severe TBI (N=53) were evaluated on average 5 months postinjury. Participants were administered the 17-item Hamilton Depression Rating Scale (HDRS), the Rivermead Post-Concussion Symptom Questionnaire, the Glasgow Outcome Scale-Extended, and a neuropsychological test battery. A subset of participants completed a resting-state functional MRI scan.
RESULTS: Principal component analysis on the HDRS items yielded a two-component solution that accounted for 40% of the variance. Component 1 encompassed mood and affective symptoms as well as agitation and loss of libido, and component 2 encompassed anxiety, insomnia, and most somatic symptoms of the HDRS. Component 2 was associated with greater TBI symptom burden and disability and worse executive functions but not resting-state functional connectivity. Component 1 was not related to TBI symptom burden, neuropsychological function, or disability, but there was a trend-level association between higher negative affect scores and greater functional connectivity between the dorsal attention and default mode networks.
CONCLUSIONS: The findings suggest that depression after TBI may not be a unitary syndrome but rather may be composed of clusters of symptoms that have different associations with TBI symptom burden, disability, and brain connectivity.