A dorsomedial prefrontal cortex-based dynamic functional connectivity model of rumination.
Nat Commun
; 14(1): 3540, 2023 06 15.
Article
em En
| MEDLINE
| ID: mdl-37321986
ABSTRACT
Rumination is a cognitive style characterized by repetitive thoughts about one's negative internal states and is a common symptom of depression. Previous studies have linked trait rumination to alterations in the default mode network, but predictive brain markers of rumination are lacking. Here, we adopt a predictive modeling approach to develop a neuroimaging marker of rumination based on the variance of dynamic resting-state functional connectivity and test it across 5 diverse subclinical and clinical samples (total n = 288). A whole-brain marker based on dynamic connectivity with the dorsomedial prefrontal cortex (dmPFC) emerges as generalizable across the subclinical datasets. A refined marker consisting of the most important features from a virtual lesion analysis further predicts depression scores of adults with major depressive disorder (n = 35). This study highlights the role of the dmPFC in trait rumination and provides a dynamic functional connectivity marker for rumination.
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1
Base de dados:
MEDLINE
Assunto principal:
Transtorno Depressivo Maior
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article