Repetitive negative thinking (RNT) has been identified as an important transdiagnostic process. However, little empirical research has been conducted into how triggers for RNT are organized. This study tested the hypothesis that these triggers are usually hierarchically related.One-hundred undergraduates underwent several evaluation phases. Firstly, a diagnostic interview was administered. Secondly, participants responded to several questionnaires measuring emotional symptoms and the tendency to engage in RNT. Thirdly, participants were presented with a list of thoughts that typically serve as triggers for RNT. They were asked to select the thoughts they usually experienced and to rate how much they became entangled in those thoughts. Fourthly, three types of diagrams were explained that showed ways in which the triggers could be organized: COORDINATION, COMPARISON, and HIERARCHY. Participants were asked to select the diagram that best described them.Seventy-nine participants organized their triggers for RNT in hierarchies, 19 participants in relationships of comparison, and 2 in coordination. Participants who selected HIERARCHY exhibited higher scores in RNT than those who selected the comparison diagram.Psychological interventions aimed at disrupting RNT should take into account how triggers are organized.