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Correlation between Subjective and Objective Cognitive-Linguistic Tests in Older Adults

정상 노년층의 인지-언어 능력에 대한 주-객관적 평가 간 상관성

  • Lee, Mi-Sook (Graduate School of Special Education(Speech Rehabilitation), Kongju National University)
  • 이미숙 (공주대학교 특수교육대학원 언어재활 전공)
  • Received : 2016.04.06
  • Accepted : 2016.05.12
  • Published : 2016.05.31

Abstract

Cognitive-linguistic changes that normally accompany aging are often simply an annoyance, but in some instances they may herald a more perilous course of decline to a state of neurological disease. This study investigated the correlation between subjective and objective tests on cognitive-linguistic abilities in older adults and the predictors of objective performances. Healthy elders over 65 years of age (n=63) and their informants (n=63) completed the subjective and objective cognitive-linguistic tests (ISCOLE and CAPTBI) from July of 2015 to February of 2016. The main findings were as follows: performance on the self-report test was not significantly different from that on the informant-report test. Additionally, eight domains in older adults group and 15 domains in the informants group were significantly associated with performance on the objective test. Finally, language on the informant-report test was a predictor of several abilities including problem solving and memory on the informant-report test predicted executive function and language. The present study demonstrates that two groups have significant differences in correlation between subjective and objective tests on the cognitive-linguistic abilities, and there are more relevant domains in rating by informants. These findings have implications for the use of cognitive-linguistic evaluation and preventive intervention in clinical settings.

노년기의 인지-언어적 변화는 일상생활의 불편함을 초래할 뿐 아니라 신경학적 질환의 주요 지표가 될 수 있다. 본 연구에서는 정상 노년층의 인지-언어 능력에 대한 주관적 및 객관적 평가 간의 상관성을 분석하고 인지-언어 능력의 예측 변인을 알아보았다. 이를 위해 2015년 7월부터 2016년 2월까지 만 65세 이상 정상 노인 63명과 이들의 정보제공자 63명을 대상으로 인지-언어 능력에 대한 자기 보고형 및 정보제공자 보고형 주관적 평가(ISCOLE)와 객관적 평가(CAPTBI)를 시행하였다. 그 결과, 첫째, 노인 및 정보제공자 집단 간에 주관적 평가의 차이는 유의하지 않았다. 둘째, 노인 집단은 8개, 정보제공자 집단은 15개 영역에서 주-객관적 평가 간에 유의한 상관성을 보였다. 셋째, 문제해결력 등은 정보제공자 보고형의 언어능력이, 그리고 집행기능과 언어능력은 정보제공자 보고형의 기억력이 주요 예측 변인이었다. 본 연구를 통해 인지-언어 능력에 대한 주-객관적 평가 간 상관성에 있어 노인 및 정보제공자 집단이 하위 영역별로 차이를 보이며, 정보제공자 집단의 주관적 평가가 더 많은 영역에서 객관적 평가와 상관성이 있음을 알 수 있었다. 이는 정상 노년층을 대상으로 한 인지-언어 능력의 평가 및 예방적 중재 시 적극 활용될 수 있을 것이다.

Keywords

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