불안 성향 노인의 정서인식 특성 = The characteristics of emotion recognition in elderly with anxiety tendency

다국어 초록 (Multilingual Abstract)

Cognitive theories of anxiety disorders have proposed that biased selective processing of threatening information is a prominent cognitive factor in the causation and maintenance of anxiety. The major goals of this study were to determine the relationship between recognition of emotional facial expressions and level of geriatric anxiety, and to understand whether bias in emotional information recognition is related to attentional bias. In Study 1, 50 morphed facial expressions conveying happiness, sadness, anger, fear, and neutral emotions were created from neutral to fully emotive expression at 2% intervals. The subjects were asked to indicate which frame in the sequence of pictures showed the particular emotion, as well as to identify the illustrated emotion. The results demonstrated that the threshold for the correct identification of an angry facial expression was significantly lower for the group with a geriatric anxiety tendency as compared to the normal group, but that the threshold for the correct identification of a fear facial expression was not quite different between the two groups. In Study 2, a modified version of the probe detection task was used to investigate the time course of attentional bias for facial emotion. Facial pairs were presented across two exposure durations of 50 ms and 1,500 ms. The results showed that the geriatric anxiety tendency group was more vigilant for angry facial expression in the brief exposure duration (50 ms) condition. However, the same group showed a very reliable tendency to avoid the angry faces. The limitations of the present study and directions for future research were discussed.

국문 초록 (Abstract)

본 연구는 불안 성향 노인집단과 정상 노인집단을 대상으로 얼굴표정 유형에 따른 정서인식의 수행 차이를 비교하였다(연구 1). 그리고 불안 성향 노인의 선택적 주의가 정서인식에서 경계-회피 패턴을 보이는지를 검증하였다(연구 2). 연구 1은 행복, 슬픔, 분노, 공포가 담긴 기본정서 사진을 몰핑한 정서인식 과제를 실시하였다. 그 결과, 집단 간의 정서판단 정반응률에서는 차이가 나타나지 않았지만, 불안 성향 노인집단이 정상 노인집단에 비해 분노 정서의 단서 출현에 더 민감하게 반응하였다. 공포정서의 경우, 불안 성향 노인집단이 민감한 반응을 보였지만 통계적으론, 유의하지 않았다. 연구 2는 50ms, 또는 1500ms 간격으로 얼굴표정사진 자극 쌍을 제시한 수정된 탐침 탐사 과제를 수행하였다. 그 결과, 자극 제시시간이 짧을 경우 불안 성향 노인집단에서 분노정서의 편향점수가 행복정서 보다 높게 나타났지만, 집단 간의 차이는 나타나지 않았다. 자극 제시시간이 길 경우, 불안 성향 노인집단은 정상 노인집단에 비해 분노 표정의 편향점수가 낮았으며, 불안 성향 노인집단 내에서 분노정서의 편향점수가 행복정서 보다 낮게 나타났다. 위의 결과를 중심으로 본 연구의 시사점, 제한점 및 후속 연구에 대해 논의하였다.

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