인지 기능 저하에 따른 얼굴 정서 인식의 손상 : 정상 노인과 치매 환자를 대상으로
Impairment of Facial Emotion Recognition by Declined Cognitive Function: For the Normal Elderly and Patients with Dementia
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초록
타인의 얼굴 정서 인식은 대인관계 의사소통과 의미 있는 사회행동에 중요하다. 치매 환자의 경우 얼굴 정서 인식에 선택적 손상이 있다는 연구가 대부분이었지만, 그렇지 않다는 결과도 있어 논란이 있었다. 이에 본 연구는 정상 노인과 치매 환자를 대상으로 인지기능 저하에 따른 얼굴 정서 인식 손상에 관하여 살펴보았다. 실험참가자들은 정서차원평정과제와 정서구별과제를 실시하였다. 그 결과, 정서차원 평정점수에서 정상 노인과 치매 환자 모두 혐오, 분노, 공포, 슬픔, 놀람, 중립 순으로 정서를 부정 평정하였고, 행복은 긍정 평정하였다. 한편, 치매 환자는 정상 노인에 비해 공포, 분노, 슬픔을 더 부정적으로 평정하였고, 행복은 덜 긍정적으로 평정하였다. 정서구별과제에서는 정상 노인과 치매 환자 모두 행복, 놀람, 중립, 분노, 슬픔, 혐오, 공포 순으로 정확반응률이 높았다. 그리고 치매 환자는 정상 노인보다 공포, 슬픔, 혐오, 중립의 정확반응률이 저조하였다. 즉, 인지 기능 저하에 따라 얼굴 정서 인식의 정확도에 선택적인 감소가 있었다. 얼굴 정서 인식에 대한 이해는 치매 환자가 남아 있는 능력으로 사회적 상호작용을 하며 살아가고, 필요한 치료재활 전략을 수립하는데 중요한 역할을 할 것이다.
- keywords
- facial emotion recognition, declined cognitive function, dementia, 얼굴 정서 인식, 인지기능저하, 치매
Abstract
Recognizing facial emotion from others is important for interpersonal communication and control for meaningful social behaviors. In the case of patients with dementia, most studies found that they had selective impairments of facial emotion recognition, whereas other studies disagreed. This study investigated the impairment of facial emotion recognition by declined cognitive function for the normal elderly and patients with dementia. Participants took two rating tasks of emotion-dimension and emotion-distinction. For the rating task of emotion-dimension, both the normal elderly and patients with dementia rated disgust, anger, fear, sadness, surprise; and neutral negatively in order, and rated happiness positively. Patients with dementia rated fear, anger, and sadness more negatively and happiness less positively compared to the normal elderly. For the rating task of emotion-distinction, both the normal elderly and patients with dementia showed a high rate of accuracy of happiness, surprise, neutral, anger, sadness, disgust, and fear in order. However, patients with dementia demonstrated a lower rate of accuracy of fear, sadness, disgust, and neutral compared to the normal elderly. The results imply that selective impairments of facial emotion recognition were caused by declined cognitive function. A better understanding of facial emotion recognition for patients with dementia will help design a therapeutic rehabilitation program that is necessary for social interaction with their remaining ability.
- keywords
- facial emotion recognition, declined cognitive function, dementia, 얼굴 정서 인식, 인지기능저하, 치매
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