Effects of relatedness and number of distractors on attribute judgments in Alzheimer's disease.
Effects of relatedness and number of distractors on attribute judgments in Alzheimer's disease.
复制标题
相关性和干扰因素数量对阿尔茨海默病属性判断的影响。
DOI：
10.1037//0894-4105.11.3.392
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
Hermann,AM
中科院分区：
文献类型：
--
作者：
Johnson,MK;Bonilla,JL;Hermann,AM
参与者对类别范例（如水果：苹果或葡萄）或部件（如飞机：机翼或座椅）的相对显著性做出判断。轻度影响的阿尔茨海默病（AD）患者与正常对照者一样准确，但反应速度较慢，当选择从2个增加到3个时，他们对相关选择（如苹果、葡萄或无花果）的反应时间比不相关选择（如苹果、健身房、强盗）的反应时间增加得更多。中重度受影响患者的表现（准确性和反应时间）更差，但干扰物数量和相关性没有相互作用。结合先前的研究结果（例如，MK Johnson, AM Hermann, & JL Bonilla, 1995），这些结果表明，在竞争性替代方案中做出决定所必需的反思过程在疾病过程的早期就出现了中断。这种处理缺陷会使语义结构退化所带来的困难复杂化。（PsycINFO数据库记录(c) 2016 APA，版权所有）
Participants made judgments about the relative salience of category exemplars (eg, fruit: apple or grape) or parts (eg, plane: wings or seats). Mildly affected Alzheimer's disease (AD) patients were as accurate but slower than normal controls, and their response times increased more for related (eg, apple, grape, or fig) than unrelated (eg, apple, gym, bandit) choices as the number of alternatives was increased from 2 to 3. Performance (accuracy and response times) of moderate-severely affected patients was poorer still, but number of distractors and relatedness did not interact. In combination with previous findings (eg, MK Johnson, AM Hermann, & JL Bonilla, 1995), these results suggest that the reflective processes necessary for deciding among competing alternatives show disruption early in the disease process. Such processing deficits would compound any difficulties arising from a degrading semantic structure.(PsycINFO Database Record (c) 2016 APA, all rights reserved)