Where are kin recognition signals in the human face?
Where are kin recognition signals in the human face?
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DOI：
10.1167/6.12.2
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发表时间：
2006-01-01
影响因子：
1.8
通讯作者：
Maloney, Laurence T.
中科院分区：
文献类型：
--
作者：
Dal Martello, Maria F.;Maloney, Laurence T.
我们报告两个实验，旨在确定在面对的信号亲属关系的线索下降。在这两个实验中，参与者被展示了30对儿童脸部照片。一半的人描绘了兄弟姐妹，另一半则没有。220名参与者被要求判断每对照片是否描绘了兄弟姐妹。我们测量了覆盖面部上半部分或下半部分（实验1）和眼睛区域或嘴巴区域（实验2）的面具对亲属识别性能的影响。在实验1中，我们发现，信号检测估计性能d'下降只有5.3%（ns）时，下脸被掩盖，但超过65%时，上脸被掩盖。我们测试了来自两半脸的亲属信息的组合是否可以被视为独立线索的最佳组合，并发现它可以。在实验2中，我们发现，掩盖眼睛区域导致只有20%的性能下降（ns），而掩盖嘴部区域导致性能的非显着增加。我们还发现，眼睛区域只比眼睛区域以外的面部上半部分包含稍微多一点的亲属关系信息。
We report two experiments that aimed to determine where in the face the cues that signal kinship fall. In both experiments, participants were shown 30 pairs of photographs of children's faces. Half of the pairs portrayed siblings and half did not. The 220 participants were asked to judge whether each pair of photographs portrayed siblings. We measured the effect on kin recognition performance of masks that covered the upper half or the lower half of the face ( Experiment 1) and the eye region or the mouth region ( Experiment 2). In Experiment 1, we found that the signal detection estimate of performance d' decreased only 5.3% ( ns) when the lower face was masked but by more than 65% when the upper face was masked. We tested whether the combination of kinship information from the two halves of the face can be treated as optimal combination of independent cues and found that it could be. In Experiment 2, we found that masking the eye region led to only a 20% reduction ( ns) in performance whereas masking the mouth region led to a nonsignificant increase in performance. We also found that the eye region contains only slightly more information about kinship than the upper half of the face outside of the eye region.