Unknown

Dataset Information

0

Early developmental emergence of human amygdala-prefrontal connectivity after maternal deprivation.


ABSTRACT: Under typical conditions, medial prefrontal cortex (mPFC) connections with the amygdala are immature during childhood and become adult-like during adolescence. Rodent models show that maternal deprivation accelerates this development, prompting examination of human amygdala-mPFC phenotypes following maternal deprivation. Previously institutionalized youths, who experienced early maternal deprivation, exhibited atypical amygdala-mPFC connectivity. Specifically, unlike the immature connectivity (positive amygdala-mPFC coupling) of comparison children, children with a history of early adversity evidenced mature connectivity (negative amygdala-mPFC coupling) and thus, resembled the adolescent phenotype. This connectivity pattern was mediated by the hormone cortisol, suggesting that stress-induced modifications of the hypothalamic-pituitary-adrenal axis shape amygdala-mPFC circuitry. Despite being age-atypical, negative amygdala-mPFC coupling conferred some degree of reduced anxiety, although anxiety was still significantly higher in the previously institutionalized group. These findings suggest that accelerated amygdala-mPFC development is an ontogenetic adaptation in response to early adversity.

SUBMITTER: Gee DG 

PROVIDER: S-EPMC3785723 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

altmetric image

Publications

Early developmental emergence of human amygdala-prefrontal connectivity after maternal deprivation.

Gee Dylan G DG   Gabard-Durnam Laurel J LJ   Flannery Jessica J   Goff Bonnie B   Humphreys Kathryn L KL   Telzer Eva H EH   Hare Todd A TA   Bookheimer Susan Y SY   Tottenham Nim N  

Proceedings of the National Academy of Sciences of the United States of America 20130909 39


Under typical conditions, medial prefrontal cortex (mPFC) connections with the amygdala are immature during childhood and become adult-like during adolescence. Rodent models show that maternal deprivation accelerates this development, prompting examination of human amygdala-mPFC phenotypes following maternal deprivation. Previously institutionalized youths, who experienced early maternal deprivation, exhibited atypical amygdala-mPFC connectivity. Specifically, unlike the immature connectivity (p  ...[more]

Similar Datasets

| S-EPMC3818506 | biostudies-literature
| S-EPMC6869775 | biostudies-literature
| S-EPMC5928403 | biostudies-literature
| S-EPMC6650776 | biostudies-literature
| S-EPMC4377225 | biostudies-literature
| S-EPMC3924522 | biostudies-literature
| S-EPMC4867584 | biostudies-literature
| S-EPMC5390747 | biostudies-literature
| S-EPMC3509229 | biostudies-literature
| S-EPMC3743923 | biostudies-literature