From faces to hands: Changing visual input in the first two years
From faces to hands: Changing visual input in the first two years
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DOI：
10.1016/j.cognition.2016.03.005
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发表时间：
2016-07-01
期刊：
影响因子：
3.4
通讯作者：
Smith, Linda B.
中科院分区：
文献类型：
--
作者：
Fausey, Caitlin M.;Jayaraman, Swapnaa;Smith, Linda B.
人的发展是在社会背景下进行的。社交信息的两个无处不在的来源是脸和手。在这里，我们提供了第一份关于婴儿日常场景中面部和手的视觉频率的报告。这些场景是通过让婴儿在不受限制的日常活动中佩戴头部摄像头来收集的。我们的语料库长达143小时，来自34名1个月至2岁的婴儿，以1/5赫兹的频率采样进行分析。这个语料库的主要发现是，在生命的头两年，社交伴侣的脸和手并不平等。相反，有一个较早时期的密集面部输入和较晚时期的密集手写输入。在所有的年龄段，这些场景中的手主要是与物体接触的，手和脸的时空共生比预期的要大。从脸到手的转换的有序性暗示了视觉体验内容的原则性转换，并从发展门在视觉体验的计时和统计中的作用进行了讨论。(C)2016爱思唯尔B.V.保留所有权利。
Human development takes place in a social context. Two pervasive sources of social information are faces and hands. Here, we provide the first report of the visual frequency of faces and hands in the everyday scenes available to infants. These scenes were collected by having infants wear head cameras during unconstrained everyday activities. Our corpus of 143 hours of infant-perspective scenes, collected from 34 infants aged 1 month to 2 years, was sampled for analysis at 1/5 Hz. The major finding from this corpus is that the faces and hands of social partners are not equally available throughout the first two years of life. Instead, there is an earlier period of dense face input and a later period of dense hand input. At all ages, hands in these scenes were primarily in contact with objects and the spatio-temporal co-occurrence of hands and faces was greater than expected by chance. The orderliness of the shift from faces to hands suggests a principled transition in the contents of visual experiences and is discussed in terms of the role of developmental gates on the timing and statistics of visual experiences. (C) 2016 Elsevier B.V. All rights reserved.