The word-frequency mirror effect in young, old, and early-stage Alzheimer's disease: Evidence for two processes in episodic recognition performance
The word-frequency mirror effect in young, old, and early-stage Alzheimer's disease: Evidence for two processes in episodic recognition performance
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DOI：
10.1006/jmla.2001.2803
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发表时间：
2002-01-01
影响因子：
4.3
通讯作者：
Adams, DR
中科院分区：
文献类型：
--
作者：
Balota, DA;Burgess, GC;Adams, DR
两个实验解决了词频镜像效应的性质，在情节识别性能和潜在的认知变化，发生在健康老龄化和早期老年痴呆症的阿尔茨海默氏症型（DAT）。在实验1中，五组参与者（年轻人，健康老年人，健康老年人，非常轻度痴呆症患者）。和轻度痴呆的人）研究了高频和低频单词的列表，并进行了是/否情景识别测试。结果表明，随着年龄和DAT的增长，低频词的命中率急剧下降，但高频词没有下降，从而消除了DAT个体在识别性能中通常发现的低频优势。对于干扰项，与高频词相比，拒绝低频词有明显的优势，并且这种优势的大小在不同的参与者群体中是恒定的。在第二个实验中，只有年轻人被要求在短或长的反应期限下做出反应。结果进行了讨论的注意力控制框架中，认知受损组的参与者。和年轻的成年人在一个短的答复期限，更多地依赖于基线熟悉的过程，而不是基于回忆的过程。讨论的重点是回忆和熟悉为基础的过程的性质。(C)2001年，爱思唯尔科学。
Two experiments address the nature of the word-frequency mirror effect in episodic recognition performance and the underlying cognitive changes that occur in both healthy aging and in early-stage Dementia of the Alzheimer's Type (DAT). In Experiment 1, five groups of participants (young, healthy old, healthy old-old, very mildly demented individuals. and mildly demented individuals) studied lists of high- and low-frequency words and were given a yes/no episodic recognition test. The results indicated that there was a dramatic decrease in hit rate For low-frequency words across age and DAT, but no decrease for high-frequency words, thereby eliminating the low-frequency advantage typically found in recognition performance for the DAT individuals, For the distractor items, there was a clear advantage in rejecting low-frequency words compared to high-frequency words, and the size of this advantage was constant across groups of participants. This between-group pattern was replicated in a second experiment, in which only young adults were required to respond either under short or long response deadlines. The results are discussed with respect to an attentional control framework in which cognitively impaired groups of participants. and young adults at a short response deadline, rely more on baseline familiarity processes than on recollection-based processes. Discussion focuses on the nature of the recollection- and familiarity-based processes. (C) 2001 Elsevier Science.