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. 2025 Feb 18:S2451-9022(25)00060-6.
doi: 10.1016/j.bpsc.2025.02.003. Online ahead of print.

Multivariate Links Between the Developmental Timing of Adversity Exposure and White Matter Tract Connectivity in Adulthood

Lucinda M Sisk  1 , Taylor J Keding  1 , Emily M Cohodes  1 , Sarah McCauley  1 , Jasmyne C Pierre  2 , Paola Odriozola  1 , Sahana Kribakaran  3 , Jason T Haberman  1 , Sadie J Zacharek  4 , Hopewell R Hodges  5 , Camila Caballero  1 , Gillian Gold  1 , Audrey Y Huang  1 , Ashley Talton  1 , Dylan G Gee  6
Affiliations

Multivariate Links Between the Developmental Timing of Adversity Exposure and White Matter Tract Connectivity in Adulthood

Lucinda M Sisk et al. Biol Psychiatry Cogn Neurosci Neuroimaging. .

Abstract

Background: Early-life adversity is pervasive worldwide and represents a potent risk factor for increased mental health burden across the lifespan. However, there is substantial individual heterogeneity in associations between adversity exposure, neurobiological changes, and mental health problems. Accounting for key features of adversity such as the developmental timing of exposure may clarify associations between adversity, neurodevelopment, and mental health.

Methods: In the current study, we leveraged sparse canonical correlation analysis to characterize modes of covariation between adversity exposure across development and the connectivity of white matter tracts throughout the brain in a sample of 107 adults.

Results: We found that adversity exposure during preschool age and middle childhood (ages 4-5 and 8 years in particular) were consistently linked across diffusion metrics with alterations in white matter tract connectivity. Whereas tracts supporting sensorimotor functions showed higher connectivity with higher preschool-age and middle childhood adversity exposure, tracts supporting cortico-cortical communication showed lower connectivity. Furthermore, latent patterns of tract connectivity associated with adversity experienced across preschool age and middle childhood (ages 3-8) were associated with posttraumatic stress symptoms in adulthood.

Conclusions: Our findings underscore that adversity exposure may differentially affect white matter in a function- and developmental timing-specific manner and suggest that adversity experienced from ages 3 to 8 years may shape the development of white matter tracts across the brain in ways that are relevant for mental health in adulthood.

Keywords: Adversity; Neurodevelopment; Psychopathology; Stress; Trauma; White matter.

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Conflict of interest statement

Financial Disclosures

All authors report no biomedical financial interests or potential conflicts of interest.

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