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Front Hum Neurosci. 2013 May 10;7:167. doi: 10.3389/fnhum.2013.00167. eCollection 2013.

Psychosocial deprivation, executive functions, and the emergence of socio-emotional behavior problems.

Frontiers in human neuroscience

Jennifer Martin McDermott, Sonya Troller-Renfree, Ross Vanderwert, Charles A Nelson, Charles H Zeanah, Nathan A Fox

Affiliations

  1. Department of Psychology, University of Massachusetts Amherst, MA, USA.

PMID: 23675333 PMCID: PMC3650621 DOI: 10.3389/fnhum.2013.00167

Abstract

Early psychosocial deprivation can negatively impact the development of executive functions (EFs). Here we explore the impact of early psychosocial deprivation on behavioral and physiological measures (i.e., event-related potentials; ERPs) of two facets of EF, inhibitory control and response monitoring, and their associations with internalizing and externalizing outcomes in the Bucharest Early Intervention Project (BEIP; Zeanah et al., 2003). This project focuses on two groups of children placed in institutions shortly after birth and then randomly assigned in infancy to either a foster care intervention or to remain in their current institutional setting. A group of community controls was recruited for comparison. The current study assesses these children at 8-years of age examining the effects of early adversity, the potential effects of the intervention on EF and the role of EF skills in socio-emotional outcomes. Results reveal exposure to early psychosocial deprivation was associated with impaired inhibitory control on a flanker task. Children in the foster care intervention exhibited better response monitoring compared to children who remained in the institution on the error-related positivity (Pe). Moreover, among children in the foster care intervention those who exhibited larger error-related negativity (ERN) responses had lower levels of socio-emotional behavior problems. Overall, these data identify specific aspects of EF that contribute to adaptive and maladaptive socio-emotional outcomes among children experiencing early psychosocial deprivation.

Keywords: conflict monitoring; error-related negativity; event-related potential (ERP); executive function; inhibitory control; institutionalization

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