Paukner Annika, Slonecker Emily M, Murphy Ashley M, Wooddell Lauren J, Dettmer Amanda M
Laboratory of Comparative Ethology, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Poolesville, Maryland.
Department of Psychology and Social Behavior, UC Irvine, Irvine, California.
Dev Psychobiol. 2018 Mar;60(2):187-193. doi: 10.1002/dev.21579. Epub 2017 Nov 22.
We investigated how differences in infant sex and mothers' dominance status affect infant rhesus macaques' (Macaca mulatta) interest in visually exploring emotional facial expressions. Thirty-eight infants were presented with animated avatars of macaque facial expressions during the first month of life. Sons of high-ranking mothers looked more at faces, especially the eye region, than sons of low-ranking mothers, but no difference in looking duration was found for daughters. Males looked significantly more at eyes than females, but this effect was reversed in infants who were reared without mothers in a primate nursery facility. In addition, in mother-infant interactions, mothers of sons were more likely to gaze at their infant's face compared to mothers of daughters. Combined with previous research indicating that rhesus macaque mothers interact differently with infants based on their own rank and infant's sex, these results support the view that social experiences shape early face preferences in rhesus macaques.
我们研究了婴儿性别和母亲的优势地位差异如何影响恒河猴幼崽对视觉探索情感面部表情的兴趣。在恒河猴幼崽出生后的第一个月，向38只幼崽展示了猕猴面部表情的动画头像。地位高的母亲的儿子比地位低的母亲的儿子更关注面部，尤其是眼睛区域，但女儿在注视时长上没有差异。雄性比雌性更显著地注视眼睛，但在灵长类动物保育设施中由无母养育的幼崽中，这种效应则相反。此外，在母婴互动中，与女儿的母亲相比，儿子的母亲更有可能注视其婴儿的脸。结合先前的研究表明恒河猴母亲根据自身等级和婴儿性别与婴儿进行不同的互动，这些结果支持了社会经验塑造恒河猴早期面部偏好的观点。
