J Korean Soc Magn Reson Med.  2005 Jun;9(1):43-49.

Implicit Distinction of the Race Underlying the Perception of Faces by Event-Related fMRI

Affiliations
  • 1Department of Biomedical Engineering, College of Medicine, The Catholic University of Korea, Seoul, Korea. bychoe@catholic.ac.kr
  • 2Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
  • 3Department of Neurosurgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

A few studies have shown that the function of fusiform face area is selectively involved in the perception of faces including a race difference. We investigated the neural substrates of the face-selective region called fusiform face area in the ventral occipital-temporal cortex and same-race memory superiority in the fusiform face area by the event-related fMRI. In our fMRI study, subjects (Oriental-Korean) performed the implicit distinction of the race while they consciously made familiar-judgments, regardless of whether they considered a face as Oriental-Korean or European-American. For race distinction as an implicit task, the fusiform face areas (FFA) and the right parahippocampal gyrus had a greater response to the presentation of Oriental-Korean faces than for the European-American faces, but in the conscious race distinction between Oriental-Korean and European-American faces, there was no significant difference observed in the FFA. These results suggest that different activation in the fusiform regions and right parahippocampal gyrus resulting from superiority of same-race memory could have implicitly taken place by the physiological processes of face recognition.

Keyword

Fusiform face area (FFA); Race; Event-Related fMRI

MeSH Terms

Continental Population Groups*
Humans
Magnetic Resonance Imaging*
Memory
Parahippocampal Gyrus
Physiological Processes
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