Age-related decline in extrafoveal letter perception.
Age-related decline in extrafoveal letter perception.
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与年龄相关的中心凹外字母感知能力下降。
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
J. Cerella
中科院分区：
文献类型：
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作者：
J. Cerella
老年人的周边视力会受到限制。实验 1 表明，随着目标离开中央凹，字母识别时间的年龄缺陷就会增加。实验2显示角度阈值相应减小。因此，老年人更难看到或者根本看不到多字符显示中的外部元素。实验 3 表明，正如 Wright 和 Elias (1979) 所发现的那样，这个受限区域可以保护老年人免受古怪干扰的影响。与此同时，老年人对陪衬的干扰更多，而不是更少，与年轻人的辨别力相匹配，这与关于年龄和噪音的大量文献一致。类似的感知限制可能会混淆其他阵列处理实验。
Peripheral vision is constricted in elderly adults. Experiment 1 showed that the age deficit in letter recognition time increased as the target moved off the fovea. Experiment 2 showed a corresponding reduction in angular threshold. Thus, the outer elements in a multicharacter display are seen with greater difficulty or not at all by the elderly adult. Experiment 3 showed this restricted field protected elderly adults from eccentric distractors, as found by Wright and Elias (1979). At the same time, elderly adults showed more, not less, interference on foils matched on discriminability with younger adults, in keeping with the larger literature on age and noise. Similar perceptual limitations may confound other array-processing experiments.