Females generally attend more to social information than males; however, little is known about the early development of these sex differences. With eye tracking, 2-month olds’ (N = 101; 44 females) social orienting to faces was measured within four-item image arrays. Infants were more likely to detect human faces compared to objects, suggesting a functional face detection system. Unexpectedly, males looked longer at human faces than females, and only males looked faster and longer at human faces compared to objects. Females, in contrast, looked less at human faces relative to animal faces and objects, appearing socially disinterested. Notably, this is the first report of a male face detection advantage at any age. These findings suggest a unique stage in early infant social development.

中文翻译：

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对 2 个月大的男婴进行面部检测

女性通常比男性更关注社会信息；然而，人们对这些性别差异的早期发展知之甚少。通过眼动追踪， 在四项图像阵列中测量了2 个月大的孩子（N = 101；44 名女性）对面部的社交取向。与物体相比，婴儿更有可能检测到人脸，这表明具有功能性的人脸检测系统。出乎意料的是，男性看人脸的时间比女性长，只有男性看人脸的时间比物体长。相比之下，与动物面孔和物体相比，女性更少看人脸，显得对社会不感兴趣。值得注意的是，这是第一次报告任何年龄的男性面部检测优势。这些发现表明婴儿早期社会发展的一个独特阶段。