Word frequency effect and recognition memory in dementia of the Alzheimer type.
Word frequency effect and recognition memory in dementia of the Alzheimer type.
复制标题
阿尔茨海默型痴呆症的词频效应和识别记忆。
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
A. Kaszniak
中科院分区：
文献类型：
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作者：
R. Wilson;L. D. Bacon;J. Fox;R. Kramer;A. Kaszniak
正常人对稀有词语的再认记忆要好于对普通词语的再认记忆。在第一个实验中，我们在17名阿尔茨海默型痴呆(DAT)患者和20名年龄和教育程度相同的正常对照中检测了这种词频效应。DAT患者对常见词表现出正常的虚惊倾向，但在命中率上没有表现出正常的罕见词优势。在第二个实验中，我们立即检查了正常记忆，并在延迟一周后检查了与DAT患者大致相同的正常记忆。常见的生词优势并没有减弱。这些发现表明，DAT患者不能对要记住的言语信息的特征和结构元素进行编码，这种加工缺陷可能与他们的识别记忆能力受损有关。
Normal persons show better recognition memory for rare than for common words. In the first experiment, we examined this word frequency effect in 17 patients with dementia of the Alzheimer type (DAT) and 20 normal controls of equivalent age and education. The DAT patients showed a normal tendency to false alarm to common words but failed to show the normal rare word advantage in their hit rate. In a second experiment, we examined normal memory immediately and after a delay of 1 week when it is approximately equivalent to that of DAT patients. There was no attenuation of the usual rare word advantage. These findings suggest that DAT patients fail to encode the featural and intrastructural elements of to-be-remembered verbal information and that this processing deficit may contribute to their impaired recognition memory performance.