Yamashita Wakayo, Niimi Ryosuke, Kanazawa So, Yamaguchi Masami K, Yokosawa Kazuhiko
Department of Information Science and Biomedical Engineering, Graduate School of Science and Engineering, Kagoshima University, Kagoshima, Japan.
J Vis. 2014 Apr 4;14(4):5. doi: 10.1167/14.4.5.
This study examined infants' visual perception of three-dimensional common objects. It has been reported that human adults perceive object images in a view-dependent manner: three-quarter views are often preferred to other views, and the sensitivity to object orientation is lower for three-quarter views than for other views. We tested whether such characteristics were observed in 6- to 8-month-old infants by measuring their preferential looking behavior. In Experiment 1 we examined 190- to 240-day-olds' sensitivity to orientation change and in Experiment 2 we examined these infants' preferential looking for the three-quarter view. The 240-day-old infants showed a pattern of results similar to adults for some objects, while the 190-day-old infants did not. The 240-day-old infants' perception of object view is (partly) similar to that of adults. These results suggest that human visual perception of three-dimensional objects develops at 6 to 8 months of age.
本研究考察了婴儿对三维常见物体的视觉感知。据报道，成年人类以视图依赖的方式感知物体图像：相对于其他视图，通常更偏好四分之三视图，并且四分之三视图对物体方向的敏感度低于其他视图。我们通过测量6至8个月大婴儿的偏好注视行为，来测试这些特征是否也存在于婴儿中。在实验1中，我们考察了190至240日龄婴儿对方向变化的敏感度，在实验2中，我们考察了这些婴儿对四分之三视图的偏好注视。240日龄的婴儿对某些物体表现出与成年人相似的结果模式，而190日龄的婴儿则没有。240日龄婴儿对物体视图的感知（部分）与成年人相似。这些结果表明，人类对三维物体的视觉感知在6至8个月大时发育形成。
