- 권한신청
- P-ISSN1226-9654
- E-ISSN2733-466X
- KCI
처리수준에 따른 외현기억과 암묵기억의 해리:대학생, 정상 노인, 알쯔하이머형 치매,파킨슨병 환자를 대상으로
Levels of Processing and Dissociation of Explicit and Implicit Memory: Normal Young and Elderly Adults, Alzheimer's Patients and Parkinson's Patients
신현정 (부산대학교)
홍창희 (부산대학교)
초록
대학생과 정상노인, 알쯔하이머형 치매 환자, 파킨슨병 환자를 대상으로 부호화 단계의 처리수준에 따른 외현기억과 암묵기억의 해리 현상을 알아보기 위해 네 가지 실험을 수행하였다. 네 실험 모두 부호화단계와 인출단계로 구성되었다. 부호화 단계에서는 의미처리와 지각처리를, 인출단계에서는 외현기억의 특성을 반영하는 단서회상 과제와 암묵기억을 측정하는 것으로 알려진 단어완성 과제를 사용하였다. 실험 1에서 대학생들은 처리수준에 따른 전형적인 외현기억과 암묵기억 간의 해리현상을 보인 반면(실험 1), 정상노인과 알쯔하이머형 치매 그리고 파킨슨병 환자에서는 처리수준에 따른 해리현상이 나타나지 않았다(실험 2, 3, 4). 실험간 추가분석 결과, 노화와 뇌손상은 외현기억과 암묵기억 과제 수행에 서로 다른 영향을 미치지 않았다. 종합논의에서는 이 결과를 기억구조와 처리과정의 측면에서 논의하고, 제한점 및 추후계획을 제시하였다.
- keywords
- explicit memory, implicit memory, dissociation, levels of processing, aging, Dementia of the Alzheimer's Type, Parkinson's disease., 외현기억, 암묵기억, 해리, 처리수준, 노화, 알쯔하이머형 치매, 파킨슨병
Abstract
Four experiments were conducted to investigate how aging and neuro-degeneration affect explicit and implicit memory task performance with respect to levels of processing. Each experiment consisted of an encoding stage and a retrieval stage. Participants performed either a semantic processing task or a perceptual processing task at the encoding stage, and performed both a cued recall task and a word fragment completion task at the retrieval stage. In Experiment 1, a typical dissociation between the explicit and the implicit memory with respect to the levels of processing was found in college students. In Experiments 2, 3, and 4, no dissociation was found in elderly adults, Alzheimer's patients, and Parkinson's patients. Dissociation was not found in both the elderly and the neuro-degeneration groups. The implications of these results were discussed in the final section with respect to understanding of human's memory structures and processing.
- keywords
- explicit memory, implicit memory, dissociation, levels of processing, aging, Dementia of the Alzheimer's Type, Parkinson's disease., 외현기억, 암묵기억, 해리, 처리수준, 노화, 알쯔하이머형 치매, 파킨슨병
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