Early experience shapes amygdala sensitivity to race: An international adoption design

Eva H. Telzer, Jessica Flannery, Mor Shapiro, Kathryn L. Humphreys, Bonnie Goff, Laurel Gabard-Durman, Dylan D. Gee, Nim Tottenham

Research output: Contribution to journalArticlepeer-review

Abstract

In the current study, we investigated how complete infant deprivation to out-group race impacts behavioral and neural sensitivity to race. Although monkey models have successfully achieved complete face deprivation in early life, this is typically impossible in human studies. We overcame this barrier by examining youths with exclusively homogenous racial experience in early postnatal development. These were youths raised in orphanage care in either East Asia or Eastern Europeas infants and later adopted by American families. The use of international adoption bolsters confidence of infant exposure to race (e.g., to solely Asian faces or European faces). Participants completed an emotional matching task during functional MRI. Our findings show that deprivation to other-race faces in infancy disrupts recognition of emotion and results in heightened amygdala response to out-group faces. Greater early deprivation (i.e., later age of adoption) is associated with greater biases to race. These data demonstrate how early social deprivation to race shapes amygdala function later in life and provides support that early postnatal development may represent a sensitive period for race perception.

Original languageEnglish (US)
Pages (from-to)13484-13488
Number of pages5
JournalJournal of Neuroscience
Volume33
Issue number33
DOIs
StatePublished - 2013

ASJC Scopus subject areas

  • Neuroscience(all)

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