WHY DO INFANTS FAIL TO SEARCH FOR HIDDEN OBJECTS?

为什么婴儿无法寻找隐藏的物体？

• 批准号: 6653009
• 负责人: JEANNE L SHINSKEY
• 金额: $ 2.53万
• 依托单位: UNIVERSITY OF COLORADO
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-04-01 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/6653009
• 关键词: clinical research; cognition; dark adaptation; developmental neurobiology; early experience; human subject; infant human (0-1 year); neural information processing; nucleic acid sequence; visual perception

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.

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