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Pruning Or Tuning? Maturational Profiles Of Face Specialization During Typical Development, Xun Zhu, Ramesh S. Bhatt, Jane E. Joseph
Pruning Or Tuning? Maturational Profiles Of Face Specialization During Typical Development, Xun Zhu, Ramesh S. Bhatt, Jane E. Joseph
Psychology Faculty Publications
Introduction: Face processing undergoes significant developmental change with age. Two kinds of developmental changes in face specialization were examined in this study: specialized maturation, or the continued tuning of a region to faces but little change in the tuning to other categories; and competitive interactions, or the continued tuning to faces accompanied by decreased tuning to nonfaces (i.e., pruning). Methods: Using fMRI, in regions where adults showed a face preference, a face- and object-specialization index were computed for younger children (5-8 years), older children (9-12 years) and adults (18-45 years). The specialization index was scaled to each subject's maximum activation …