Temporal discrimination increases in precision over development and parallels the development of numerosity discrimination
Temporal discrimination increases in precision over development and parallels the development of numerosity discrimination
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DOI：
10.1111/j.1467-7687.2007.00635.x
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发表时间：
2007-11-01
影响因子：
3.7
通讯作者：
Libertus, Klaus
中科院分区：
文献类型：
--
作者：
Brannon, Elizabeth M.;Suanda, Sumarga;Libertus, Klaus
时间知觉对人类行为的许多方面都很重要，大量文献表明，成年人代表时间间隔，他们区分时间间隔的能力取决于比率。在这里，我们复制了货车马勒和韦恩（2006）最近的一项研究，该研究使用了视觉习惯化范式，并证明了6个月大婴儿的时间辨别也是比率依赖的。我们进一步证明，6个月至10个月的年龄之间的时间歧视的精度增加，10个月大的婴儿成功地区分2：3的比例，6个月大的婴儿无法区分的比例。我们讨论了时间辨别遵循与先前在婴儿期观察到的数字辨别相同的发展进程这一事实的潜在影响（Lipton & Spelke，2003）。
Time perception is important for many aspects of human behavior, and a large literature documents that adults represent intervals and that their ability to discriminate temporal intervals is ratio dependent. Here we replicate a recent study by van Marle and Wynn (2006) that used the visual habituation paradigm and demonstrated that temporal discrimination in 6-month-old infants is also ratio dependent. We further demonstrate that between 6 and 10 months of age temporal discrimination increases in precision such that by 10 months of age infants succeed at discriminating a 2:3 ratio, a ratio that 6-month-old infants were unable to discriminate. We discuss the potential implications of the fact that temporal discrimination follows the same developmental progression that has been previously observed for number discrimination in infancy (Lipton & Spelke, 2003).