Abstract
The method of examining the early memory impairments of Alzheimer’s disease was investigated with word delayed recall, memory span, and dual-task working memory tests. Four subject groups, including two normal youth groups, a normal elder group, and a probable AD group, participated in this study. The results showed that: (1) the word delayed recall probability had no significant difference between two youth groups and between the young and the elderly subjects, however, it was significantly damaged in the PAD subjects; (2) two groups of young subjects had similar performance in the dual-task working memory tests, and the elderly subjects showed some decrease in the performance, but the PAD had more impairment in this task; (3) all groups of subjects were different from each other in the memory span task. These results indicated that the word delayed recall and the dual-task working memory tests may be useful in examining the early memory impairments of Alzheimer’s disease.
| Keywords: | Alzheimer’s disease; memory impairments; word delayed recall; dual-task working memory |
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