Contour interaction function in the preschool child.
Contour interaction function in the preschool child.
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学龄前儿童的轮廓交互功能。
DOI：
10.1097/00006324-198709000-00007
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Loshin,DS
中科院分区：
文献类型：
--
作者：
Manny,RE;Fern,KD;Loshin,DS
研究人员对 12 名 3 至 4 岁的学龄前儿童进行了轮廓相互作用研究，并与在相同范式下测试的 5 名正常成年人获得的结果进行了比较。在 90% 到 95% 的试验中，观察者从一定距离观看显示器，他们可以正确识别孤立 C 中的间隙（向上或向下）的位置。孤立的 C 和 C 的条切线位于测试视标上方和下方的不同位置，随机混合。将正确百分比绘制为测试视标间隙宽度对向角的函数。当学龄前儿童和成人将杠放置在间隙对角的 0.71 至 1.42 倍处时，他们的表现会显着下降。结果表明，学龄前儿童表现出的轮廓相互作用在数量上与成人相似。由于标准敏锐度图表上的字母间距通常大于轮廓相互作用发生的范围，因此与学龄前儿童的孤立字母呈现相比，用图表测量的敏锐度通常较差，这表明涉及轮廓相互作用以外的因素（可能是注意力因素）。
Contour interaction was investigated in 12 preschool children 3 to 4 years of age, and compared to the results obtained from 5 normal adults tested under an identical paradigm. Observers viewed the display from a distance at which they could identify the location of a gap (up or down) in an isolated C correctly on 90 to 95% of the trials. The isolated C and C's with bars tangentially located at various positions above and below the test optotype were intermixed randomly. Percent correct was plotted as a function of the angular subtense of the gap width of the test optotype. A significant decrease in performance was found when the bars were positioned at 0.71 to 1.42 times the angular subtense of the gap for both the preschool children and the adults. The results suggest that preschool children demonstrate contour interaction that is quantitatively similar to adults. Because the spacing of letters on standard acuity charts is typically larger than the range over which contour interaction occurs, the poorer acuity often measured with charts compared to isolated letter presentation in preschool children suggests that factors other than contour interaction (perhaps attentional factors) are involved.