The role of bottom-up processing in perceptual categorization by 3-to 4-month-old infants: Simulations and data
The role of bottom-up processing in perceptual categorization by 3-to 4-month-old infants: Simulations and data
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DOI：
10.1037/0096-3445.133.3.382
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发表时间：
2004-09-01
影响因子：
4.1
通讯作者：
Quinn, PC
中科院分区：
文献类型：
--
作者：
French, RM;Mareschal, D;Quinn, PC
在成人类别学习中，区分自下而上和自上而下的处理过程是非常困难的。在婴儿期研究类别学习提供了一种探索类别学习的简单方法，同时最大限度地减少了自上而下信息的贡献。三到四个月大的婴儿在看到猫或狗的图像时，会形成一种对猫的感知类别表征，而对狗的感知类别表征则包括猫。作者认为，图像中特征分布的包含关系解释了这种不对称性。使用计算建模和行为测试，作者表明，不对称性可以通过使用刺激图像来逆转或消除包含关系。研究结果表明，幼儿对非人类动物图像的分类基本上是一个自下而上的过程。
Disentangling bottom-up and top-down processing in adult category learning is notoriously difficult. Studying category learning in infancy provides a simple way of exploring category learning while minimizing the contribution of top-down information. Three- to 4-month-old infants presented with cat or dog images will form a perceptual category representation for cat that excludes dogs and for dog that includes cats. The authors argue that an inclusion relationship in the distribution of features in the images explains the asymmetry. Using computational modeling and behavioral testing, the authors show that the asymmetry can be reversed or removed by using stimulus images that reverse or remove the inclusion relationship. The findings suggest that categorization of nonhuman animal images by young infants is essentially a bottom-up process.