Dataset Information

Childhood abuse and deprivation are associated with distinct sex-dependent differences in brain morphology.

ABSTRACT: Childhood adversity (CA) has been associated with long-term structural brain alterations and an increased risk for psychiatric disorders. Evidence is emerging that subtypes of CA, varying in the dimensions of threat and deprivation, lead to distinct neural and behavioral outcomes. However, these specific associations have yet to be established without potential confounders such as psychopathology. Moreover, differences in neural development and psychopathology necessitate the exploration of sexual dimorphism. Young healthy adult subjects were selected based on history of CA from a large database to assess gray matter (GM) differences associated with specific subtypes of adversity. We compared voxel-based morphometry data of subjects reporting specific childhood exposure to abuse (n=127) or deprivation (n=126) and a similar sized group of controls (n=129) without reported CA. Subjects were matched on age, gender, and educational level. Differences between CA subtypes were found in the fusiform gyrus and middle occipital gyrus, where subjects with a history of deprivation showed reduced GM compared with subjects with a history of abuse. An interaction between sex and CA subtype was found. Women showed less GM in the visual posterior precuneal region after both subtypes of CA than controls. Men had less GM in the postcentral gyrus after childhood deprivation compared with abuse. Our results suggest that even in a healthy population, CA subtypes are related to specific alterations in brain structure, which are modulated by sex. These findings may help understand neurodevelopmental consequences related to CA.

SUBMITTER: Everaerd D

PROVIDER: S-EPMC4869045 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Childhood abuse and deprivation are associated with distinct sex-dependent differences in brain morphology.

Everaerd Daphne D Klumpers Floris F Zwiers Marcel M Guadalupe Tulio T Franke Barbara B van Oostrom Iris I Schene Aart A Fernández Guillén G Tendolkar Indira I

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 20151118 7

Childhood adversity (CA) has been associated with long-term structural brain alterations and an increased risk for psychiatric disorders. Evidence is emerging that subtypes of CA, varying in the dimensions of threat and deprivation, lead to distinct neural and behavioral outcomes. However, these specific associations have yet to be established without potential confounders such as psychopathology. Moreover, differences in neural development and psychopathology necessitate the exploration of sexu ...[more]

PMID: 26576924

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Project description:BackgroundNeighborhood deprivation adversely effects neurodevelopment and cognitive function; however, mechanisms remain unexplored. Neighborhood deprivation could be particularly impactful in late childhood/early adolescence, in neural regions with protracted developmental trajectories, e.g., prefrontal cortex (PFC).MethodsThe Adolescent Brain Cognitive Development (ABCD) study recruited 10,205 youth. Geocoded residential history was used to extract individual neighborhood characteristics. A general cognitive ability index and MRI scans were completed. Associations with neurocognition were examined. The relation of PFC surface area and cortical thickness to neighborhood deprivation was tested. PFC subregions and asymmetry, with putative differential environmental susceptibility during key developmental periods, were explored. Analyses tested PFC area as a possible mediating mechanism.ResultsNeighborhood deprivation predicted neurocognitive performance (β = -0.11), even after accounting for parental education and household income (β = -0.07). Higher neighborhood deprivation related to greater overall PFC surface area (ηp2 = 0.003), and differences in leftward asymmetry were observed for area (ηp2 = 0.001), and thickness (ηp2 = 0.003). Subregion analyses highlighted differences among critical areas that are actively developing in late childhood/early adolescence and are essential to modulating high order cognitive function. These included orbitofrontal, superior frontal, rostral middle frontal, and frontal pole regions (Cohen's d = 0.03-0.09). PFC surface area partially mediated the relation between neighborhood deprivation and neurocognition.DiscussionNeighborhood deprivation related to cognitive function (a foundational skill tied to a range of lifetime outcomes) and PFC morphology, with evidence found for partial mediation of PFC on neurocognitive function. Results inform public health conceptualizations of development and environmental vulnerability.

Dataset Information

Childhood abuse and deprivation are associated with distinct sex-dependent differences in brain morphology.

Publications

Childhood abuse and deprivation are associated with distinct sex-dependent differences in brain morphology.

Similar Datasets

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