Atypical EEG Power Correlates with Indiscriminately Friendly Behavior in Internationally Adopted Children

Autor/inn/en	Tarullo, Amanda R.; Garvin, Melissa C.; Gunnar, Megan R.
Titel	Atypical EEG Power Correlates with Indiscriminately Friendly Behavior in Internationally Adopted Children
Quelle	In: Developmental Psychology, 47 (2011) 2, S.417-431 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0012-1649
DOI	10.1037/a0021363
Schlagwörter	At Risk Persons; Disadvantaged Environment; Adoption; Foster Care; Cognitive Processes; Correlation; Interpersonal Relationship; Neurological Organization; Toddlers; Comparative Analysis; Brain; Inhibition; Self Control; Neurological Impairments; Child Neglect; Environmental Influences; Child Development + Suchen Sie Ihr Suchwort? Risikogruppe; Pflegehilfe; Cognitive process; Kognitiver Prozess; Korrelation; Interpersonal relation; Interpersonal relations; Interpersonelle Beziehung; Zwischenmenschliche Beziehung; Infant; Infants; Toddler; Kleinkind; Gehirn; Hemmung; Selbstbeherrschung; Neurodegenerative Erkrankung; Kindesvernachlässigung; Environmental influence; Umwelteinfluss; Kindesentwicklung
Abstract	While effects of institutional care on behavioral development have been studied extensively, effects on neural systems underlying these socioemotional and attention deficits are only beginning to be examined. The current study assessed electroencephalogram (EEG) power in 18-month-old internationally adopted, postinstitutionalized children (n = 37) and comparison groups of nonadopted children (n = 47) and children internationally adopted from foster care (n = 39). For their age, postinstitutionalized children had an atypical EEG power distribution, with relative power concentrated in lower frequency bands compared with nonadopted children. Both internationally adopted groups had lower absolute alpha power than nonadopted children. EEG power was not related to growth at adoption or to global cognitive ability. Atypical EEG power distribution at 18 months predicted indiscriminate friendliness and poorer inhibitory control at 36 months. Both postinstitutionalized and foster care children were more likely than nonadopted children to exhibit indiscriminate friendliness. Results are consistent with a cortical hypoactivation model of the effects of early deprivation on neural development and provide initial evidence associating this atypical EEG pattern with indiscriminate friendliness. Outcomes observed in the foster care children raise questions about the specificity of institutional rearing as a risk factor and emphasize the need for broader consideration of the effects of early deprivation and disruptions in care. (Contains 2 figures and 4 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10