Neural adaptation to faces reveals racial outgroup homogeneity effects in early perception.

ABSTRACT: A hallmark of intergroup biases is the tendency to individuate members of one's own group but process members of other groups categorically. While the consequences of these biases for stereotyping and discrimination are well-documented, their early perceptual underpinnings remain less understood. Here, we investigated the neural mechanisms of this effect by testing whether high-level visual cortex is differentially tuned in its sensitivity to variation in own-race versus other-race faces. Using a functional MRI adaptation paradigm, we measured White participants' habituation to blocks of White and Black faces that parametrically varied in their groupwise similarity. Participants showed a greater tendency to individuate own-race faces in perception, showing both greater release from adaptat

SUBMITTER: Hughes BL 

PROVIDER: S-EPMC6642392 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature