Transient tasks and enduring emotions: the impacts of affective content, task relevance, and picture duration on the sustained late positive potential

The present experiments were designed to examine the influences of picture duration, task relevance, and affective content on neural measures of sustained engagement, as indexed by the late positive potential (LPP). Much prior work has shown that the event-related potential in and around the P3—here referred to as the early LPP—is modulated by affective content, nonaffective task relevance, and stimulus duration. However, later portions of the...