WHY DO INFANTS FAIL TO SEARCH FOR HIDDEN OBJECTS?

描述：如果经济状况不佳不能解释婴儿呢？搜索失败 有了隐藏的物体，为什么婴儿会成功地使用隐藏在 黑暗，哪一种不需要手段-目的技能？建议的工作内容包括 此问题通过测试评分表示帐户，派生自 认知神经科学。根据这个说法，婴儿？申述 以发展逐步加强，在更大范围内支持成功 对象永久性任务。婴儿先在黑暗中寻找，然后再在 光，因为黑暗对脆弱的物体表示影响较小 比一个可见的封堵器做得更好。第一个项目将测试黑暗是否 通过控制光和光之间的附带差异，优势是真实的 黑暗的研究可能有利于在黑暗中寻找。第二个项目将测试 分级申述按以下方式与收入目标赤字账户相抵销 操纵是否向6.5个月大的婴儿呈现可用隐藏对象 通过直接伸展或手段-目的顺序，在黑暗或光明中。这个 第三个项目将通过操作来测试分级制图表达帐户 被认为影响对象表示强度的因素，例如 体验对象的数量和类型。长期目标是 增加关于正常婴儿群体认知发展的知识。

DESCRIPTION: If a means-end deficit cannot explain infants? search failures with hidden objects, then why do infants succeed with objects hidden by darkness, which does not require means-end skill? The proposed work addresses this question by testing the graded representations account, derived from cognitive neuroscience. According to this account, infants? representations gradually strengthen with development to support success on a greater range of object permanence tasks. Infants search in the dark before they search in the light because darkness interferes less with a fragile object representation than a visible occluder does. The first project will test whether the dark advantage is genuine by controlling incidental differences between light and dark studies that may favor search in the dark. The second project will test the graded representations account against the means-end deficit account by manipulating whether 6.5-month-olds are presented with hidden objects available by direct reach or a means-end sequence, in either the dark or the light. The third project will test the graded representations account by manipulating factors believed to affect the strength of object representations, such as amount and type of experience with the object. The long- term objective is to increaseknowledge about cognitive development in normal infant populations.