Is face processing species-specific during the first year of life?
Is face processing species-specific during the first year of life?
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DOI：
10.1126/science.1070223
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发表时间：
2002-05-17
期刊：
影响因子：
56.9
通讯作者：
Nelson, CA
中科院分区：
文献类型：
--
作者：
Pascalis, O;de Haan, M;Nelson, CA
在6到10个月大的时候，婴儿区分母语语音的能力会提高，而区分外语语音的能力则会下降。我们的研究旨在确定这种感知缩小是语言独有的，还是也可能适用于面部处理。我们使用视觉配对比较程序测试了6个月大的婴儿、9个月大的婴儿和成年人对人类和猴子面孔的辨别能力。只有最年轻的群体表现出两种物种之间的个体歧视；年龄较大的婴儿和成年人只表现出对自己物种的歧视。这些结果表明，“感知变窄”现象可能代表了参与早期认知的神经网络中更普遍的变化。
Between 6 and 10 months of age, the infant's ability to discriminate among native speech sounds improves, whereas the same ability to discriminate among foreign speech sounds decreases. Our study aimed to determine whether this perceptual narrowing is unique to language or might also apply to face processing. We tested discrimination of human and monkey faces by 6-month-olds, 9-month-olds, and adults, using the visual paired-comparison procedure. Only the youngest group showed discrimination between individuals of both species; older infants and adults only showed evidence of discrimination of their own species. These results suggest that the "perceptual narrowing" phenomenon may represent a more general change in neural networks involved in early cognition.