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- Title
Mapping potential pathways from polygenic liability through brain structure to psychological problems across the transition to adolescence.
- Authors
Lahey, Benjamin B.; Durham, E. Leighton; Brislin, Sarah J.; Barr, Peter B.; Dick, Danielle M.; Moore, Tyler M.; Pierce, Brandon L.; Tong, Lin; Reimann, Gabrielle E.; Jeong, Hee Jung; Dupont, Randolph M.; Kaczkurkin, Antonia N.
- Abstract
Background: We used a polygenic score for externalizing behavior (extPGS) and structural MRI to examine potential pathways from genetic liability to conduct problems via the brain across the adolescent transition. Methods: Three annual assessments of child conduct problems, attention‐deficit/hyperactivity problems, and internalizing problems were conducted across across 9–13 years of age among 4,475 children of European ancestry in the Adolescent Brain Cognitive DevelopmentSM Study (ABCD Study®). Results: The extPGS predicted conduct problems in each wave (R2 = 2.0%–2.9%). Bifactor models revealed that the extPRS predicted variance specific to conduct problems (R2 = 1.7%–2.1%), but also variance that conduct problems shared with other measured problems (R2 =.8%–1.4%). Longitudinally, extPGS predicted levels of specific conduct problems (R2 = 2.0%), but not their slope of change across age. The extPGS was associated with total gray matter volume (TGMV; R2 =.4%) and lower TGMV predicted both specific conduct problems (R2 = 1.7%–2.1%) and the variance common to all problems in each wave (R2 = 1.6%–3.1%). A modest proportion of the polygenic liability specific to conduct problems in each wave was statistically mediated by TGMV. Conclusions: Across the adolescent transition, the extPGS predicted both variance specific to conduct problems and variance shared by all measured problems. The extPGS also was associated with TGMV, which robustly predicted conduct problems. Statistical mediation analyses suggested the hypothesis that polygenic variation influences individual differences in brain development that are related to the likelihood of conduct problems during the adolescent transition, justifying new research to test this causal hypothesis.
- Subjects
ADOLESCENT development; RISK assessment; ATTENTION-deficit hyperactivity disorder; RESEARCH funding; RISK-taking behavior; BRAIN; MENTAL illness; CELLULAR signal transduction; MAGNETIC resonance imaging; UNSAFE sex; QUALITY control; STRUCTURAL equation modeling; DESCRIPTIVE statistics; GENETIC risk score; TEENAGERS' conduct of life; BEHAVIOR disorders in children; LONGITUDINAL method; GRAY matter (Nerve tissue); CHILD Behavior Checklist; NEURORADIOLOGY; QUALITY assurance; FACTOR analysis; COMPARATIVE studies; DATA analysis software; TRANSITION to adulthood; GENETICS; GENOTYPES; ADOLESCENCE
- Publication
Journal of Child Psychology, 2024, Vol 65, Issue 8, p1047
- ISSN
0021-9630
- Publication type
Article
- DOI
10.1111/jcpp.13944