Neurodevelopmental Effects of Early Deprivation in Post-Institutionalized Children

Seth D. Pollak, Charles A. Nelson, Mary F. Schlaak, Barbara J. Roeber, Sandi S. Wewerka, Kristen L. Wiik, Kristin A. Frenn, Michelle M. Loman, and Megan R. Gunnar - Child Development

Abstract

The neurodevelopmental sequelae of early deprivation were examined by testing (N = 132) 8 and 9 year old children who had endured prolonged versus brief institutionalized rearing or rearing in the natal family. Behavioral tasks included measures that permit inferences about underlying neural circuitry. Children raised in institutionalized settings showed neuropsychological deficits on tests of visual memory and attention, as well as visually mediated learning and inhibitory control. Yet, these children performed at developmentally appropriate levels on similar tests where auditory processing was also involved and on tests assessing executive processes such as rule acquisition and planning. These findings suggest that specific aspects brain-behavioral circuitry may be particularly vulnerable to post-natal experience.