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KMID : 0387420170280040401
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Korean Society of Oriental Neuropsychiatry
2017 Volume.28 No. 4 p.401 ~ p.408
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Comparison of the Serial Position Effect in Alzheimer's Disease, Vascular Dementia, Elderly Depression, and in Normal Group: Using the CERAD-K's Word List Memory Test
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Park Jeong-Ran
Lee Seok-Bum
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Abstract
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Objectives: The purpose of this study is to obtain the differential variable and learning effect of the seri-al position effect, targeting individuals aged 60 years and over. A total of 89 individuals were catego-rized into the following groups: Alzheimer’s group, vascular dementia group, elderly depression group, and normal group.
Methods: Considering the size of the groups used for comparison, of the total 89 participants, 28 were in the Alzheimer’s group, 24 in the vascular dementia group, 16 in the elderly depression group, and 21 were randomly chosen for the normal group. In the CERAD-K word list memory test, 10 words were shown to the subjects. We then asked them to freely recall the words. After changing the order of the words three times, the same process was followed.
Results: First, a significant difference was observed among the groups in terms of word recalling rate. The analysis conducted afterward showed that, as predicted, the depressed group showed significantly better performance in recalling the words. Second, the vascular dementia patients and the Alzheimer’s patients showed, as predicted, better recall of the largest recency region of words shown. Third, the normal group and the elderly depressed group showed a high-performance rate, proving that the re-iterative method can contribute to the recalling process. Thus, we demonstrated that the Alzheimer’s group showed the deterioration of short memory recalling skills and the elderly depressed showed de-teriorated output performance skill.
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KEYWORD
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Serial position effect, Primacy effect, Recency effect, Dementia
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