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한국심리학회지: 일반

ISSN : 1229-067X

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Vol.28 No.1
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노화와 뇌손상에 따른 지각적 범주화와 재인기억의 해리: 대학생과 정상 노인, 알츠하이머형 치매 환자를 대상으로

Dissociation between perceptual categorization and recognition in college students, the elderly, and Dementia of the Alzheimer's Type patients

한국심리학회지: 일반 / Korean Journal of Psychology: General, (P)1229-067X; (E)2734-1127
2009, v.28 no.1, pp.67-82
최성진 (메리놀병원 정신과)
신현정 (부산대학교)
최성진, & 신현정. (2009). 노화와 뇌손상에 따른 지각적 범주화와 재인기억의 해리: 대학생과 정상 노인, 알츠하이머형 치매 환자를 대상으로. 한국심리학회지: 일반, 28(1), 67-82.
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초록

Posner 등(1967)의 점패턴을 이용하여 학습-검사단계 실험 패러다임으로 대학생과 정상 노인, 알츠하이머형 치매 환자에서 지각적 범주화와 재인기억 사이에 해리가 관찰되는지를 알아보고자 하였다. Knowlton과 Squire(1993)의 연구가 지각적 범주화와 재인기억과제의 검사단계에서 서로 다른 항목을 제시하였던 것과는 달리, 본 연구에서는 검사단계 조건을 동일하게 조작하여 수행을 직접 비교하였고, 반응시간을 종속변인에 포함시켰다. 그 결과, 알츠하이머형 치매 환자의 경우 지각적 범주화 수행은 어느 정도 보존되어 있는 반면, 재인기억은 상당히 손상되어 있는 해리가 나타났다. 논의에서는 지각적 범주화와 재인기억 연구에서 기억이 단일기억체계인지, 아니면 분리된 다중기억체계인지에 대한 논쟁을 중심으로 이 연구의 함의와 연구 방향을 제시하였다.

keywords
지각적 범주화, 지각적 재인기억, 점패턴(dot pattern) 과제, 노화, 알츠하이머형 치매, perceptual categorization, perceptual recognition memory, dot-pattern task, aging, Dementia of the Alzheimer's Type., perceptual categorization, perceptual recognition memory, dot-pattern task, aging, Dementia of the Alzheimer's Type.

Abstract

We, using the learning-test phase experimental paradigm and dot patterns(Posner et al., 1967) as experimental material, investigated whether the dissociations between perceptual categorization and recognition memory are occurred in college students, the elderly, and Dementia of the Alzheimer's Type patients. While Knowlton and Squire(1993) used different items(dot patterns) in the test stages in categorization task and recognition task, we used the same items in both categorization and recognition test stage to compare the results with each other directly, and included reaction time as a dependent measure. The results showed that Dementia of the Alzheimer's Type patients were selectively impaired in recognition, but not in categorization. The implications of these results were discussed in the final section with respect to controversy of whether perceptual categorization and recognition memory are subserved by a single memory system or by multi-memory systems.

keywords
지각적 범주화, 지각적 재인기억, 점패턴(dot pattern) 과제, 노화, 알츠하이머형 치매, perceptual categorization, perceptual recognition memory, dot-pattern task, aging, Dementia of the Alzheimer's Type., perceptual categorization, perceptual recognition memory, dot-pattern task, aging, Dementia of the Alzheimer's Type.

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