Linking Individual Differences in Personalized Functional Network Topography to Psychopathology in Youth
Adam R Pines,
Valerie J Sydnor,
Aaron F Alexander-Bloch,
Dani S Bassett,
Monica E Calkins,
Damien A. Fair,
Ruben C Gur,
Raquel E Gur,
Tyler M Moore,
Russell T Shinohara,
Jacob W. Vogel,
Cedric H Xia,
Theodore D Satterthwaite
Posted 04 Aug 2021
bioRxiv DOI: 10.1101/2021.08.02.454763
Posted 04 Aug 2021
The spatial layout of large-scale functional brain networks differs between individuals and is particularly variable in association cortex that has been implicated in a broad range of psychiatric disorders. However, it remains unknown whether this variation in functional topography is related to major dimensions of psychopathology in youth. Capitalizing on a large sample with 27-minutes of high-quality functional MRI data (n=790, ages 8-23 years) and advances in machine learning, we examined associations between functional topography and four correlated dimensions of psychopathology (fear, psychosis, externalizing, anxious-misery) as well as an overall psychopathology factor. We found that functional topography significantly predicted individual differences in dimensions of psychopathology, driven mainly by robust associations between topography and overall psychopathology. Reduced cortical representations of association networks were among the most important features of the model. Our results emphasize the value of considering systematic differences in functional neuroanatomy for personalized diagnostics and therapeutics in psychiatry.
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