Sparing of semantic memory in Alzheimer's disease.
Sparing of semantic memory in Alzheimer's disease.
复制标题
阿尔茨海默病中语义记忆的保留。
DOI：
10.1037//0021-843x.93.3.321
复制
发表时间：
1984
影响因子：
4.6
通讯作者：
Horn,LC
中科院分区：
文献类型：
--
作者：
Nebes,RD;Martin,DC;Horn,LC
许多研究人员认为，与正常的老年人不同，阿尔茨海默病患者有严重的语义记忆缺陷。然而，在以前的研究中使用的语义记忆任务已经混淆了沉重的要求，他们放在努力处理。在本研究中，20名痴呆（平均年龄71岁）和20名正常（平均年龄69.8岁）的老年人被赋予了一系列的情节记忆任务和3个任务，检查如何完整和访问他们的语义记忆的条件下，不需要努力的处理。尽管在情景记忆测试中，痴呆学生的表现远不如正常学生，但他们在语义记忆测试中的表现却不相上下：两组的命名潜伏期同样受到语义启动的促进，正常和痴呆老年人对一串字母的回忆准确率同样受到字符串接近英语正字法的程度的影响，两组受试者对单词串的回忆准确率受单词串遵守句法和语义规则程度的影响相同。(42参考）（PsycInfo数据库记录（c）2022阿帕，保留所有权利）
A number of investigators have suggested that unlike the normal elderly population, patients with Alzheimer's disease have a severe semantic-memory deficit. However, the semantic-memory tasks used in previous studies have been confounded by the heavy demands they placed on effortful processing. In the present study, 20 demented (mean age 71 yrs) and 20 normal (mean age 69.8 yrs) elderly Ss were given a battery of episodic-memory tasks and 3 tasks that examined how intact and accessible their semantic memory was under conditions that did not require effortful processing. Although the demented Ss were greatly inferior to the normal Ss on the episodic-memory tests, they performed equally well on the semantic-memory test: The naming latency of both groups was equally facilitated by a semantic prime, the recall accuracy of both normal and demented elderly for a string of letters was similarly affected by the degree to which the string approximated English orthography, and recall accuracy for a string of words was affected equally in the 2 groups by the degree to which the word string obeyed syntactic and semantic rules.(42 ref)(PsycInfo Database Record (c) 2022 APA, all rights reserved)