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ERIC Number: EJ1050883
Record Type: Journal
Publication Date: 2015-Mar
Pages: 11
Abstractor: As Provided
Reference Count: 118
ISBN: N/A
ISSN: ISSN-0165-0254
A Neurogenetics Approach to Defining Differential Susceptibility to Institutional Care
Brett, Zoe H.; Sheridan, Margaret; Humphreys, Kate; Smyke, Anna; Gleason, Mary Margaret; Fox, Nathan; Zeanah, Charles; Nelson, Charles; Drury, Stacy
International Journal of Behavioral Development, v39 n2 p150-160 Mar 2015
An individual's neurodevelopmental and cognitive sequelae to negative early experiences may, in part, be explained by genetic susceptibility. We examined whether extreme differences in the early caregiving environment, defined as exposure to severe psychosocial deprivation associated with institutional care compared to normative rearing, interacted with a biologically informed genoset comprising "BDNF" (rs6265), "COMT" (rs4680), and "SIRT1" (rs3758391) to predict distinct outcomes of neurodevelopment at age 8 (N = 193, 97 males and 96 females). Ethnicity was categorized as Romanian (71%), Roma (21%), unknown (7%), or other (1%). We identified a significant interaction between early caregiving environment (i.e., institutionalized versus never institutionalized children) and the a priori defined genoset for full-scale IQ, two spatial working memory tasks, and prefrontal cortex gray matter volume. Model validation was performed using a bootstrap resampling procedure. Although we hypothesized that the effect of this genoset would operate in a manner consistent with differential susceptibility, our results demonstrate a complex interaction where vantage susceptibility, diathesis stress, and differential susceptibility are implicated.
SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institute of Mental Health (DHHS/NIH)
Authoring Institution: N/A
Identifiers - Location: Romania
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children
Grant or Contract Numbers: R21MH094688-01|R01MH091363-04