DEMENTIA AND WORKING MEMORY
DEMENTIA AND WORKING MEMORY
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DOI：
10.1080/14640748608401616
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发表时间：
1986-11-01
期刊：
影响因子：
--
通讯作者：
SPINNLER, H
中科院分区：
文献类型：
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作者：
BADDELEY, A;LOGIE, R;SPINNLER, H
本研究探讨了阿尔茨海默型痴呆（DAT）患者在工作记忆的中央执行部分功能受损的假设，这将反映在患者同时执行两项并发任务的能力上。DAT患者，年龄匹配的对照组和年轻的对照组被要求将跟踪任务的表现与三个并发任务中的每一个结合起来，发音抑制，对音调的简单反应时间和听觉数字广度。调整跟踪任务的难度和数字序列的长度，使三组单独执行任务时的表现相等。当数字跨度或并发RT与跟踪相结合时，DAT患者表现出的表现恶化尤为明显。
This study explored the hypothesis that patients suffering from dementia of the Alzheimer type (DAT) are particularly impaired in the functioning of the Central Executive component of working memory, and that this will be reflected in the capacity of patients to perform simultaneously two concurrent tasks. DAT patients, age-matched controls and young controls were required to combine performance on a tracking task with each of three concurrent tasks, articulatory suppression, simple reaction time to a tone and auditory digit span. The difficulty of the tracking task and length of digit sequence were both adjusted so as to equate performance across the three groups when the tasks were performed alone. When digit span or concurrent RT were combined with tracking, the deterioration in performance shown by the DAT patients was particulary marked.