title: White matter integrity in brain networks relevant to anxiety and depression: evidence from the human connectome project dataset.
abstract: Anxiety and depression are associated with altered communication within global brain networks and between these networks and the amygdala. Functional connectivity studies demonstrate an effect of anxiety and depression on four critical brain networks involved in top-down attentional control (fronto-parietal network; FPN), salience detection and error monitoring (cingulo-opercular network; CON), bottom-up stimulus-driven attention (ventral attention network; VAN), and default mode (default mode network; DMN). However, structural evidence on the white matter (WM) connections within these networks and between these networks and the amygdala is lacking. The current study in a large healthy sample (n = 483) observed that higher trait anxiety-depression predicted lower WM integrity in the connections between amygdala and specific regions of the FPN, CON, VAN, and DMN. We discuss the possible consequences of these anatomical alterations for cognitive-affective functioning and underscore the need for further theory-driven research on individual differences in anxiety and depression on brain structure.
authors.affiliation: Department of Experimental Clinical and Health Psychology, Ghent University, Henri Dunantlaan 2, 9000, Ghent, Belgium. NeleDeWitte@gmail.com.
authors.forename: Nele A J
authors.initials: NAJ
authors.lastname: De Witte
authors.affiliation: Department of Experimental Clinical and Health Psychology, Ghent University, Henri Dunantlaan 2, 9000, Ghent, Belgium.
authors.forename: Sven C
authors.initials: SC
authors.lastname: Mueller
mesh_terms: D000328:Adult; D001007:Anxiety / Q000000981:diagnostic imaging* / Q000473:pathology; D001921:Brain / Q000000981:diagnostic imaging* / Q000473:pathology; D063132:Connectome; D003863:Depression / Q000000981:diagnostic imaging* / Q000473:pathology; D056324:Diffusion Tensor Imaging; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009434:Neural Pathways / Q000000981:diagnostic imaging / Q000473:pathology; D009483:Neuropsychological Tests; D010551:Personality; D066127:White Matter / Q000000981:diagnostic imaging* / Q000473:pathology; D055815:Young Adult
keywords: Anxiety; Depression; Diffusion tensor imaging; HCP; Human connectome project; Structural MRI