짧은 마음챙김 유도가 정서자극에 대한 기억편향에 미치는 효과
The Effect of Brief Mindfulness Induction on Memory Bias for Emotional Stimuli
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본 연구의 목적은 정서자극에 대한 기억편향에 미치는 짧은 마음챙김 유도의 효과를 알아보는 것이다. 참가자들은 두 집단(마음챙김 집단(n=30) vs. 통제집단(n=30)) 중 한 집단에 무선 할당되었으며, 일주일 간격으로 2일간 실험을 진행하였다. 1일차 실험에서 집단에 따라 처치가 수행되었고, 이후에 사진학습과제를 실시하였다. 사진학습과제에서는 정서적 유인가가 있는 사진(긍정사진 또는 부정사진)과 중립적인 사진이 동시에 제시되었다. 일주일 후, 2일차 실험에서는 재인기억과제를 실시하였다. 재인기억과제에서 참가자들은 1일차 실험에서 학습했던 사진과 처음 보는 사진을 구별하였다. 그 결과, 긍정-중립 자극쌍 조건에서 마음챙김 집단의 긍정사진 재인정확성은 통제집단보다 유의하게 높았지만, 두 집단 모두 긍정사진에 대한 기억편향을 보이지는 않았다. 부정-중립 자극쌍 조건에서 두 집단은 모두 부정사진에 대한 기억편향을 보였지만, 마음챙김 집단은 통제집단에 비해 부정사진에 대한 기억편향이 감소하는 경향을 보였다. 이러한 결과들은 짧은 마음챙김 유도가 긍정-중립 자극쌍에 대한 전반적인 학습과제 수행능력을 향상시키는 한편, 부정사진에 대해서는 기억편향을 일부 감소시킨다는 것을 시사한다. 마지막으로 본 연구의 의의와 한계점이 논의되었다.
Abstract
The purpose of this study was to investigate the effect of brief mindfulness induction on memory bias for emotional stimuli. Participants were randomly assigned to one of the two groups (mindfulness group (n=30) vs. control group (n=30)), and the experiment was conducted for two days at a weekly interval. In the day-1 experiment, treatment was performed according to the group, followed by the photo-learning task. In the photo-learning task, an emotional picture (positive or negative) and a neutral picture were presented at the same time. One week later, in the day-2 experiment, the recognition task was performed. In the recognition task, the participants distinguished between the pictures they had learned in the day-1 experiment and the pictures that they saw for the first time. As a result, in the positive-neutral pair condition, the recognition accuracy of positive pictures in the mindfulness group was significantly higher than that in the control group, but neither group showed any memory bias for positive pictures. In the negative-neutral pair condition, both groups showed a memory bias for negative pictures, but the mindfulness group showed a tendency to decrease the memory bias for negative pictures compared to the control group. These results suggest that brief mindfulness induction improves the overall learning task performance for positive-neutral pairs, while partially reducing memory bias for negative pictures. Finally, the implications and limitations of this study were discussed.
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