Prior research has reported developmental change in how infants represent categories of other-race faces (Developmental Science 19 (2016) 362–371). In particular, Caucasian 6-month-olds were shown to represent African versus Asian face categories, whereas Caucasian 9 month-olds represented different classes of other-race faces in one category, inclusive of African and Asian faces but exclusive of Caucasian faces. The current investigation sought to provide stronger evidence that is convergent with these findings by asking whether infants will generalize looking-time responsiveness from one to another other-race category. In Experiment 1, an experimental group of Caucasian 6-month-olds was familiarized with African (or Asian) faces and then given a novel category preference test with an Asian (or African) face versus a Caucasian face, while a control group of Caucasian 6-month-olds viewed the test faces without prior familiarization. Infants in the experimental group divided attention between the test faces and infants in the control group did not manifest a spontaneous preference. Experiment 2 used the same procedure, but was conducted with Caucasian 9-month-olds. Infants in the experimental group displayed a robust preference for Caucasian faces when considered against the finding that infants in the control group displayed a spontaneous preference for other-race faces. The results offer confirmation that between 6 and 9 months, infants transition to representing own-race versus other-race face categories, with the latter inclusive of multiple other-race face classes with clear perceptual differences. Computational modeling of infant responding suggests that the developmental change is rooted in the statistics of experience with majority versus minority group faces.

先前的研究报告了婴儿如何代表其他种族面孔类别的发育变化（Developmental Science 19 (2016) 362–371）。特别是，6 个月大的高加索人被证明代表非洲和亚洲人的面孔类别，而 9 个月大的高加索人在一个类别中代表不同类别的其他种族面孔，包括非洲和亚洲面孔，但不包括高加索人面孔。目前的调查试图通过询问婴儿是否会将观看时间反应从一个种族类别推广到另一个种族类别来提供与这些发现一致的更有力的证据。在实验 1 中，一组 6 个月大的白人实验组熟悉了非洲（或亚洲）面孔，然后对亚洲（或非洲）面孔与高加索面孔进行了新的类别偏好测试，而对照组 6 个月大的白种人则在没有事先熟悉的情况下查看测试面。实验组的婴儿将注意力分散在测试面孔之间，而对照组的婴儿没有表现出自发的偏好。实验 2 使用相同的程序，但在 9 个月大的白种人中进行。考虑到对照组婴儿表现出对其他种族面孔的自发偏好这一发现，实验组的婴儿表现出对高加索面孔的强烈偏好。结果证实，在 6 到 9 个月之间，婴儿转变为代表自己种族与其他种族的面孔类别，后者包括具有明显感知差异的多个其他种族面孔类别。