Two separate verbal processing rates contributing to short-term memory span
Two separate verbal processing rates contributing to short-term memory span
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DOI：
10.1037/0096-3445.127.2.141
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发表时间：
1998-06-01
影响因子：
4.1
通讯作者：
Keller, CV
中科院分区：
文献类型：
--
作者：
Cowan, N;Wood, NL;Keller, CV
先前的研究表明，非文字记忆广度，即人们能记住并立即重复的单词数量，与他们能发音的最快速度有关。反过来，这种关系又被归因于信息处理的一般或全球速度，这种速度在个体之间存在差异，并随着年龄的变化而变化。然而，本文所描述的实验表明，两个过程（快速发音和从短期记忆中提取单词）的速度与记忆广度有关，但彼此无关。记忆广度取决于大脑处理速度的轮廓，而不仅仅是整体速度。此外，随着年龄变化的比率变量与个体之间的差异变量之间似乎只有部分重叠。
Previous research indicates that verbal memory span, the number of words people can remember and immediately repeat, is related to the fastest rate at which they can pronounce the words. This relation, in turn, has been attributed to a general or global rate of information processing that differs among individuals and changes with age. However, the experiments described in this article showed that the rates of 2 processes (rapid articulation and the retrieval of words from short-term memory) are related to memory span but not to each other. Memory span depends on a profile of processing rates in the brain, not only a global rate. Moreover, there appears to be only a partial overlap between the rate variables that change with age and those that differ among individuals.