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Full-Text Articles in Child Psychology
Family Income, Cumulative Risk Exposure, And White Matter Structure In Middle Childhood, Alexander J. Dufford, Pilyoung Kim
Family Income, Cumulative Risk Exposure, And White Matter Structure In Middle Childhood, Alexander J. Dufford, Pilyoung Kim
Psychology: Faculty Scholarship
Family income is associated with gray matter morphometry in children, but little is known about the relationship between family income and white matter structure. In this paper, using Tract-Based Spatial Statistics, a whole brain, voxel-wise approach, we examined the relationship between family income (assessed by income-to-needs ratio) and white matter organization in middle childhood (N = 27, M = 8.66 years). Results from a non-parametric, voxel-wise, multiple regression (threshold-free cluster enhancement, p < 0.05 FWE corrected) indicated that lower family income was associated with lower white matter organization [assessed by fractional anisotropy (FA)] for several clusters in white matter tracts involved in cognitive and emotional functions including fronto-limbic circuitry (uncinate fasciculus and cingulum bundle), association fibers (inferior longitudinal fasciculus, superior longitudinal fasciculus), and corticospinal tracts. Further, we examined the possibility that cumulative risk (CR) exposure might function as one of the potential pathways by which family income influences neural outcomes. Using multiple regressions, we found lower FA in portions of these tracts, including those found in the left cingulum bundle and left superior longitudinal fasciculus, was significantly related to greater exposure to CR (β = -0.47, p < 0.05 and β = -0.45, p < 0.05).
Distinct Patterns Of Reduced Prefrontal And Limbic Gray Matter Volume In Childhood General And Internalizing Psychopathology, Hannah R. Snyder, Benjamin L. Hankin, Curt A. Sandman, Kevin Head, Elysia Poggi Davis
Distinct Patterns Of Reduced Prefrontal And Limbic Gray Matter Volume In Childhood General And Internalizing Psychopathology, Hannah R. Snyder, Benjamin L. Hankin, Curt A. Sandman, Kevin Head, Elysia Poggi Davis
Psychology: Faculty Scholarship
Reduced gray matter volume (GMV) is widely implicated in psychopathology, but scholars have found mostly overlapping areas of GMV reduction across disorders rather than unique neural signatures, potentially due to pervasive comorbidity. GMV reductions may be associated with broader psychopathology dimensions rather than specific disorders. We used an empirically supported bifactor model consisting of common psychopathology and internalizing- and externalizing-specific factors to evaluate whether latent psychopathology dimensions yield a clearer, more parsimonious pattern of GMV reduction in prefrontal and limbic/paralimbic areas implicated in individual disorders. A community sample of children (N = 254, ages 6–10) was used to evaluate …