| 心算加工年老化及其机制研究 |
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| 引用本文： | 刘昌,李德明,李贵芸. 心算加工年老化及其机制研究[J]. 心理学报, 1999, 0(3) |
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| 作者姓名： | 刘昌 李德明 李贵芸 |
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| 作者单位： | 中国科学院心理研究所!北京，100101，华中师范大学心理系，武汉，430079，中国科学院心理研究所!北京，100101，中国科学院心理研究所!北京，100101 |
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| 基金项目： | 国家自然科学基金!39570258 |
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| 摘 要： | 以172名20－79岁成人为被试对心算加工的年老化过程及其机制进行了研究。任务为连续减法心算，依难度分为5种：1000－1、1000－3、1000－7、1000－13及1000－17。结果表明，年龄与心算难度存在明显的交互作用，且随着年龄增加，不同难度心算效率均以幂函数形式降低。结构方程建模分析发现心算加工年老化过程存在两个中介作用因子，即速度因子和非速度因子，且速度因子对非速度因子存在明显的正效应。
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| 关 键 词： | 心算 年龄 结构方程建模 |
ON MENTAL ARITHMETIC WITH INCREASING AGE AND ITS MECHANISM |
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| Liu Chang, Li Deming, Li Guiyun. ON MENTAL ARITHMETIC WITH INCREASING AGE AND ITS MECHANISM[J]. Acta Psychologica Sinica, 1999, 0(3) |
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| Authors: | Liu Chang Li Deming Li Guiyun |
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| Abstract: | A study on menta arithmetic with increasing of age and its mechanism wasaccomplished in 172 normal subjects of from 20 to 79 yeare of age. Five mentalarithmetic tasks, "1000- 1", "1000-3", "1000-7", "1000- 13" , "1000- 17", weredesigned with a serial calculation in which the subjects sequentially subtracted thesame prime number (1, 3, 7, 13, 17) from another number 1000. The results indicatedthat: (1) There was an obvious interaction between age and mental arithmetic, andmental arithmtic efficiency (the ratio of accuracy to RT) decreased in power funtionwith the advancing of age; (2) There were two mediators (latent variables) which wererelative to speed component and non-speed component respectively in the aging processof menta arithmetic, and speed component had significant effect on non-speedcomponent. |
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| Keywords: | mental arithmetic age Structural Equation Modelling (SEM) |
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