Age-related slowing in semantic information processing speed: an individual differences analysis.
Age-related slowing in semantic information processing speed: an individual differences analysis.
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与年龄相关的语义信息处理速度减慢：个体差异分析。
DOI：
10.1093/geronj/41.4.500
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
C. J. Cannon
中科院分区：
文献类型：
--
作者：
C. Hertzog;C. Raskind;C. J. Cannon
这项研究调查了处理语义信息的速度的年龄差异。 30 名年轻人和 25 名老年人完成了五项反应时间 (RT) 任务：简单 RT、对非语言刺激的二选一 RT 和三项测量语义判断速度的任务。这些数据用于检查 RT 因素的个体差异，并通过验证性因素分析进行估计。所有三个语义 RT 任务都加载在单个语义 RT 因子上，年轻和年长参与者的因子负载相同，表明这三个任务正在测量语义内存访问速度 (SMA) 的共同因子。两组 RT 因素之间的协方差存在显着差异；最重要的是，在老年组中，SMA 因子与二选一 RT 因子具有更高的相关性。这一发现被认为是对这两个 RT 因素与年龄相关的减慢个体差异的支持。
This study investigated age differences in the speed of processing semantic information. Thirty young adults and 25 older adults completed five reaction time (RT) tasks: simple RT, two-choice RT to nonverbal stimuli, and three tasks measuring speed of making semantic judgments. The data were used to examine individual differences in RT factors, estimated by means of confirmatory factor analysis. All three semantic RT tasks loaded on a single semantic RT factor, with equivalent factor loadings for young and older participants, indicating that the three tasks were measuring a common factor of semantic memory access speed (SMA). The two groups differed significantly in the covariances among the RT factors; most important, the SMA factor had a higher correlation with a two-choice RT factor in the older group. This finding is taken as support of individual differences in age-related slowing on these two RT factors.