Department of Psychology, Texas A&M University, College Station, TX 77843, USA.
Infant Behav Dev. 2010 Dec;33(4):596-604. doi: 10.1016/j.infbeh.2010.07.011. Epub 2010 Aug 11.
There is evidence that infants as young as 4.5 months use property-rich but not property-poor sounds as the basis for individuating objects (Wilcox, Woods, Tuggy, & Napoli, 2006). The current research sought to identify the age at which infants demonstrate the capacity to use property-poor sounds. Using the task of Wilcox et al., infants aged 7 and 9 months were tested. The results revealed that 9- but not 7-month-olds demonstrated sensitivity to property-poor sounds (electronic tones) in an object individuation task. Additional results confirmed that the younger infants were sensitive to property-rich sounds (rattle sounds). These are the first positive results obtained with property-poor sounds in infants and lay the foundation for future research to identify the underlying basis for the developmental hierarchy favoring property-rich over property-poor sounds and possible mechanisms for change.
有证据表明，4.5 个月大的婴儿已经可以使用具有丰富属性但不具有贫乏属性的声音作为区分物体的基础（Wilcox、Woods、Tuggy 和 Napoli，2006）。本研究旨在确定婴儿表现出使用贫乏属性声音的能力的年龄。使用 Wilcox 等人的任务，对 7 个月和 9 个月大的婴儿进行了测试。结果表明，9 个月大的婴儿但不是 7 个月大的婴儿在物体识别任务中表现出对贫乏属性声音（电子音）的敏感性。其他结果证实，较小的婴儿对丰富属性声音（拨浪鼓声音）敏感。这是首次在婴儿中获得的关于贫乏属性声音的积极结果，为未来的研究奠定了基础，以确定有利于丰富属性声音而不是贫乏属性声音的发展层次的基础，并确定可能的变化机制。
