Attentional blocks are not responsible for age-related slowing.
Attentional blocks are not responsible for age-related slowing.
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注意力障碍并不是与年龄相关的减慢的原因。
DOI：
10.1093/geronj/48.6.p263
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
Salthouse,TA
中科院分区：
文献类型：
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作者：
Salthouse,TA
分析了784名18-87岁成年人在两个任务中的反应时数据，以确定年龄与个体内反应时分布参数之间的关系。尽管在每个个体的RT分布中，最慢的RTS的年龄差异的绝对值最大，但在控制了最快RTS的方差后，最慢的RTS几乎没有独立的年龄相关方差。此外，在几个认知任务中，当只考虑最快的反应时，反应时与运动速度、知觉速度、工作记忆和准确性的测量之间的关系与同时考虑快反应和慢反应时的关系几乎相同。这些结果表明，与年龄相关的减慢与整个反应时分布的变化(和扩大)有关，而不是由于对个体最慢反应的选择性影响。
Reaction time (RT) data in two tasks from a total of 784 adults between 18 and 87 years of age were analyzed to determine the relation between age and parameters of the intra-individual RT distribution. Although the absolute magnitude of the age differences was greatest for the slowest RTs in each individual's RT distribution, there was little or no independent age-related variance in the slowest RTs after controlling for the variance in the fastest RTs. Furthermore, the relation between RT and measures of motor speed, perceptual speed, working memory, and accuracy in several cognitive tasks was of nearly the same magnitude when only the fastest responses were considered as when both fast and slow responses were considered. These results imply that age-related slowing is associated with a shift (and expansion) in the entire RT distribution, and is not attributable to a selective influence on the individual's slowest responses.