 One aspect of the research focuses on the difference between rumination versus reappraisal of an emotional event, exploring how they affect the duration of an emotional experience, and in which direction (shortening or lengthening) (Verduyn et al.2011).The researchers argue that cognition is very significant to the duration and experience of emotion, claiming that "thoughts appear to act as fuel that stirs up the emotional fire and leads to a prolongation of the episode" (Verduyn et al.