Abstract:
:A growing body of literature demonstrates that racial group membership can influence neural responses, e.g. when individuals perceive or interact with persons of another race. However, little attention has been paid to social class, a factor that interacts with racial inequalities in American society. We extend previous literature on race-related neural activity by focusing on how the human brain responds to racial out-groups cast in positively valued social class positions vs less valued ones. We predicted that the ventromedial prefrontal cortex (vmPFC) and the amygdala would have functionally dissociable roles, with the vmPFC playing a more significant role within socially valued in-groups (i.e. the middle-class) and the amygdala having a more crucial role for socially ambivalent and threatening categories (i.e. upper and lower class). We tested these predictions with two complementary studies: (i) a neuropsychological experiment with patients with the vmPFC or amygdala lesions, contrasted with brain damaged and normal comparison participants, and (ii) a functional magnetic resonance imaging experiment with 15 healthy adults. Our findings suggest that two distinct mechanisms underlie class-based racial evaluations, one engaging the vmPFC for positively identified in-group class and another recruiting the amygdala for the class groups that are marginalized or perceived as potential threats.
journal_name
Soc Cogn Affect Neuroscijournal_title
Social cognitive and affective neuroscienceauthors
Firat RB,Hitlin S,Magnotta V,Tranel Ddoi
10.1093/scan/nsx052subject
Has Abstractpub_date
2017-08-01 00:00:00pages
1314-1324issue
8eissn
1749-5016issn
1749-5024pii
3112284journal_volume
12pub_type
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