본 연구는 섭식억제가 탈억제를 통해 폭식에 미치는 영향과 신경증 수준에 따른 탈억제의 매개효과 차이를 검증하였다. 이를 위해 254명의 성인 여성을 대상으로 식이행동 질문지, 한국판 아이젱크 성격검사-신경증 척도, 한국판 폭식척도를 실시하였다. 분석 결과, 섭식억제, 신경증, 탈억제, 폭식 간 정적 상관관계가 있는 것으로 나타났다. 또한 섭식억제가 폭식에 미치는 영향에서 탈억제의 완전매개효과가 유의하였다. 신경증 수준이 높은 경우 섭식억제가 탈억제에 미치는 영향이 유의하였으나, 신경증 수준이 낮은 경우 유의하지 않은 것으로 나타났다. 또한 신경증 수준이 높은 경우 섭식억제와 폭식 간의 관계에서 탈억제의 매개효과가 유의했으나, 신경증 수준이 낮은 경우 유의하지 않았다. 이는 섭식행동을 억제할수록 탈억제를 통해 폭식할 위험이 높고, 신경증 수준이 높은 경우 이러한 위험이 증가할 수 있음을 의미한다. 본 연구의 결과는 섭식억제가 폭식의 발병과 유지에 기여하는 심리적 기제를 설명하고, 나아가 폭식의 위험요인을 고려한 치료적 개입의 필요성을 시사한다.
The purpose of this study was to investigate the effect of dietary restraint on binge eating through disinhibition and the difference in mediating effect of disinhibition by neuroticism. A total of 254 female adults were asked to complete the Dutch Eating Behavior Questionnaire, Korean version of Eysenck Personality Questionnaire-Neuroticism, and Binge Eating Scale. Results reveal significant positive correlations between dietary restraint, neuroticism, disinhibition, and binge eating. Additionally, the effect of dietary restraint on binge eating was fully mediated by disinhibition. The effect of neuroticism on disinhibition was significant in high, but not low, neuroticism. Also, the mediating effect of disinhibition on the relationship between dietary restraint and binge eating was significant in high, but not low, neuroticism. That is, dietary restraint has a greater risk of binge eating due to disinhibition, and this risk may increase in the high level of neuroticism. This study explains the psychological mechanism that restrained eating contributes to binge eating, and suggests that interventions for binge eating should strongly consider risk factors.
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