Vernier acuity in human infants: rapid emergence shown in a longitudinal study.
Vernier acuity in human infants: rapid emergence shown in a longitudinal study.
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人类婴儿的游标敏锐度：纵向研究显示快速出现。
DOI：
10.1097/00006324-199709000-00021
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Brown,AM
中科院分区：
文献类型：
--
作者：
Brown,AM
背景资料：游标敏锐度纵向测量与发表的结果进行比较早期stereopsis development.Methods：37人的婴儿进行了测试，使用强制选择优先looking。其中包括29名飞行员婴儿（9或12周龄）和8名婴儿纵向测试（9周至11至15周龄）。结果：在9周，游标视力约为40分钟的视角，与一个典型的成人值小于10弧秒的视角相比。游标视力在出现后立即迅速改善，约10天内翻了一番。年龄11周后，游标视力保持恒定，在1000弧秒（17分钟）的视角，直到testing.Conclusion：游标视力发展的时间过程中不同的发表的数据立体视。游标敏锐度出现显着更快，而立体视觉改善最快的年龄时，游标敏锐度变化最慢。这是不可能的，一个单一的关键不成熟限制婴儿的表现在两个视觉任务。
Background: Vernier acuity was measured longitudinally for comparison with published results on early stereopsis development.Methods: Thirty-seven human infants were tested using forced-choice preferential looking. These included 29 pilot infants (9 or 12 weeks of age) and eight infants tested longitudinally (9 weeks to 11 to 15 weeks of age).Results: At 9 weeks, Vernier acuity was about 40 minutes of visual angle, compared with a typical adult value of less than 10 arc sec of visual angle. Vernier acuity improved rapidly immediately after emergence, doubling within about 10 days. After age 11 weeks, Vernier acuity remained constant, at 1000 arc sec (17 min) of visual angle, until testing ended.Conclusion: Vernier acuity developed over a time course different from published data on stereoacuity. Vernier acuity emerged significantly sooner, whereas stereopsis improved most quickly at an age when Vernier acuity was changing most slowly. It is unlikely that a single critical immaturity limits infant performance on both visual tasks.