Effect of age on forward and backward span tasks
Effect of age on forward and backward span tasks
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DOI：
10.1017/s1355617704104037
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发表时间：
2004-07-01
影响因子：
2.6
通讯作者：
Ong, B
中科院分区：
文献类型：
--
作者：
Hester, RL;Kinsella, GJ;Ong, B
工作记忆的中央执行部分一直被认为在跨任务，特别是向后跨任务的表现中起着重要作用。与年龄相关的中央执行功能下降也有报道，但有不一致的发现表明，随着年龄的增长，向前和向后跨度之间的差异增加。对韦氏记忆量表第三版标准化样本（N = 1030）进行二次分析以调查这种关系。过去的研究表明，中央执行能力的下降与年龄有关，在此基础上，假设向后数字和空间跨度的表现比向前跨度的表现下降得更快。然而，结果表明，两种测量方法中与年龄相关的表现下降率是相等的。前向任务和后向任务都需要中央执行资源来保证任务的成功执行。
The central executive component of working memory has been argued to play an important role in the performance of span tasks, particularly backward span. Age-related decline in central executive function has also been reported, and yet there have been inconsistent findings to indicate that with increasing age, the discrepancy between forward and backward span increases. A secondary analysis of the Wechsler Memory Scale-Third Edition standardization sample (N = 1030) was performed to investigate this relationship. It was hypothesized on the basis of past research indicating an age-related decline in central executive performance, that backward digit and spatial span performance would decrease at a greater rate than forward span performance. However, the results indicated that the rate of age-related performance decline was equivalent for both measures. It is proposed that both forward and backward span tasks recruit central executive resources for successful task performance.