Research about face recognition shows that people are better at recognizing faces of their own groups (e.g. race, sex, and age) compared to faces of other groups. In recent years, researchers have conducted experiments to explore such own-group biases in face recognition. Two competing theoretical explanations for this own-group bias are the Perceptual Expertise Hypothesis and the Social-Cognitive Approach. Researchers proposed two models based on an integration of these two approaches: the Categorization- Individuation Model and Dual-Route Approach, and explored its neural mechanisms, implica...
