Feb 13, 2019

White matter microstructure correlates of general and specific second-order factors of psychopathology

NeuroImage. Clinical
Kendra E HintonDavid H Zald

Abstract

Increasing data indicate that prevalent forms of psychopathology can be organized into second-order dimensions based on their correlations, including a general factor of psychopathology that explains the common variance among all disorders and specific second-order externalizing and internalizing factors. Nevertheless, most existing studies on the neural correlates of psychopathology employ case-control designs that treat diagnoses as independent categories, ignoring the highly correlated nature of psychopathology. Thus, for instance, although perturbations in white matter microstructure have been identified across a range of mental disorders, nearly all such studies used case-control designs, leaving it unclear whether observed relations reflect disorder-specific characteristics or transdiagnostic associations. Using a representative sample of 410 young adult twins oversampled for psychopathology risk, we tested the hypothesis that some previously observed relations between white matter microstructure properties in major tracts and specific disorders are related to second-order factors of psychopathology. We examined fractional anisotropy (FA), radial diffusivity (RD), and axial diffusivity (AD). White matter correlates of all...Continue Reading

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Mentioned in this Paper

Study
Fornix of Vagina
Fanconi Anemia
Fractional Precipitation
Statistical Test
Alzheimer's Disease
RADIN BLOOD GROUP ANTIGEN
Mental Disorders
Psychopathology
Capsule (Pharmacologic)

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