Farroni Teresa, Johnson Mark H, Menon Enrica, Zulian Luisa, Faraguna Dino, Csibra Gergely
Centre for Brain and Cognitive Development, School of Psychology, Birkbeck, University of London, Malet Street, London WC1E 7HX, United Kingdom.
Proc Natl Acad Sci U S A. 2005 Nov 22;102(47):17245-50. doi: 10.1073/pnas.0502205102. Epub 2005 Nov 11.
There is currently no agreement as to how specific or general are the mechanisms underlying newborns' face preferences. We address this issue by manipulating the contrast polarity of schematic and naturalistic face-related images and assessing the preferences of newborns. We find that for both schematic and naturalistic face images, the contrast polarity is important. Newborns did not show a preference for an upright face-related image unless it was composed of darker areas around the eyes and mouth. This result is consistent with either sensitivity to the shadowed areas of a face with overhead (natural) illumination and/or to the detection of eye contact.
目前，关于新生儿面部偏好背后的机制是多么具体或普遍，尚无定论。我们通过操纵示意性和自然主义的面部相关图像的对比度极性，并评估新生儿的偏好来解决这个问题。我们发现，对于示意性和自然主义的面部图像，对比度极性都很重要。除非直立的面部相关图像由眼睛和嘴巴周围较暗的区域组成，否则新生儿不会表现出对它的偏好。这一结果与对头顶（自然）光照下脸部阴影区域的敏感度和/或对眼神接触的检测结果一致。
