Proceedings of the Korean Society of Medical Physics Conference (한국의학물리학회:학술대회논문집)
- 2004.11a
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- Pages.49-52
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- 2004
Implicit Distinction of the Race underlying the Perception of Faces by Event-Related fMRI
- Kim, Jeong-Seok (Department of Biomedical Engineering) ;
- Kim, Bum-Soo (Department of Radiology) ;
- Jeun, Sin-Soo (Department of Neurosurgery, College of Medicine, The Catholic University of Korea) ;
- Lee, Kang-Hee (Department of Psychology, Korea University, Hospital Seoul) ;
- Jung, So-Lyung (Department of Radiology) ;
- Choe, Bo-Young (Department of Biomedical Engineering)
- Published : 2004.11.26
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, twelve healthy 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. In the 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 than European-American faces, but in the consciously race distinction between Oriental-Korean and European-American faces, any significant difference in the FFA was not observed. These results suggest that different activation in the fusiform regions and right parahippocampal gyrus resulting from same-race memory superiority could be implicitly taken place by the physiological processes of face recognition.