title: Neural Trade-Offs between Recognizing and Categorizing Own- and Other-Race Faces.
abstract: Behavioral research has suggested a trade-off relationship between individual recognition and race categorization of own- and other-race faces, which is an important behavioral marker of face processing expertise. However, little is known about the neural mechanisms underlying this trade-off. Using functional magnetic resonance imaging (fMRI) methodology, we concurrently asked participants to recognize and categorize own- and other-race faces to examine the neural correlates of this trade-off relationship. We found that for other-race faces, the fusiform face area (FFA) and occipital face area (OFA) responded more to recognition than categorization, whereas for own-race faces, the responses were equal for the 2 tasks. The right superior temporal sulcus (STS) responses were the opposite to those of the FFA and OFA. Further, recognition enhanced the functional connectivity from the right FFA to the right STS, whereas categorization enhanced the functional connectivity from the right OFA to the right STS. The modulatory effects of these 2 couplings were negatively correlated. Our findings suggested that within the core face processing network, although recognizing and categorizing own- and other-race faces activated the same neural substrates, there existed neural trade-offs whereby their activations and functional connectivities were modulated by face race type and task demand due to one's differential processing expertise with own- and other-race faces.
authors.affiliation: School of Computer and Information Technology, Beijing Jiaotong University, Beijing 100044, China Dr. Eric Jackman Institute of Child Study, University of Toronto, Toronto, Canada.
authors.forename: Jiangang
authors.initials: J
authors.lastname: Liu
authors.affiliation: Department of Psychology, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China.
authors.forename: Zhe
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Institute of Automation Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Lu
authors.initials: L
authors.lastname: Feng
authors.affiliation: School of Life Science and Technology, Xidian University, Xi'an 710071, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.affiliation: Institute of Automation Chinese Academy of Sciences, Beijing 100190, China School of Life Science and Technology, Xidian University, Xi'an 710071, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Tian
authors.affiliation: Dr. Eric Jackman Institute of Child Study, University of Toronto, Toronto, Canada.
authors.forename: Kang
authors.initials: K
authors.lastname: Lee
mesh_terms: D044466:Asian People; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping; D005145:Face; D005260:Female; D006126:Group Processes; D006801:Humans; D007600:Judgment / Q000502:physiology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008959:Models, Neurological; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation; D021641:Recognition, Psychology / Q000502:physiology*; D012938:Social Perception; D044465:White People; D055815:Young Adult
keywords: cross-face processing; dynamic causal modeling; fMRI; neural trade-off; other-race effect