Abstract

Previous research on the relationship between rumination and behavioral impulsivity has been limited because impulsivity was assessed by using individual tasks. This study examined the concurrent associations of a latent variable named impulsive action with rumination and depression to alleviate the task-impurity problem and the low reliability of laboratory tasks assessing impulsivity. This study also examined whether stressors mediated the association between impulsive action and rumination. University students in Japan (N = 176) conducted three laboratory tasks assessing impulsive action: the Go/No-Go Task, the Stop Signal Task, and the Conners Continuous Performance Test 3rd Edition. They also completed self-report measures of rumination, stressors, and depression. Results indicated that the latent variable named impulsive action constructed from the performance in these three tasks was positively associated with rumination. Moreover, stressors mediated this association. Also, impulsive action was positively associated with depression via the increase in stressors and rumination. These findings and those of previous studies examining associations between rumination and self-reported impulsivity suggest that impulsivity might be a determinant of rumination.

摘要

以前关于反刍和行为冲动之间关系的研究受到限制，因为冲动是通过使用个人任务来评估的。这项研究检查了一个名为冲动行为的潜在变量与沉思和抑郁的同时关联，以缓解任务不纯问题和评估冲动的实验室任务的低可靠性。这项研究还检查了压力源是否介导了冲动行为和沉思之间的关联。日本大学生（N = 176) 进行了三项评估冲动行为的实验室任务：Go/No-Go 任务、停止信号任务和 Conners 连续性能测试第 3 版。他们还完成了对沉思、压力源和抑郁的自我报告测量。结果表明，根据这三项任务的表现构建的名为冲动行为的潜在变量与反刍呈正相关。此外，压力因素介导了这种关联。此外，通过增加压力源和沉思，冲动行为与抑郁症呈正相关。这些发现以及之前研究反刍与自我报告冲动之间关联的研究表明，冲动可能是反刍的决定因素。