A case-by-case analysis of EPN and LPP components within a "one-picture-per-emotion-category" protocol.

ABSTRACT: Stimuli encountered in the environment are continuously evaluated according to their affective stimulus significance. Numerous event-related potential studies have shown that the early posterior negativity (EPN) and the late positive potential (LPP) are larger for high than low arousing emotional pictures. The group approach has been recently extended to the study of the individual case. Usually, many exemplars are used to represent an emotion category. Determining how many pictures are needed to reliably assess affective stimulus evaluation processes at the individual level is crucial when moving toward the goal of exploring idiosyncratic emotional stimuli. Accordingly, in the present study (N = 16), singular images displaying erotic, neutral, and mutilation content were shown 800 times w

SUBMITTER: Schupp HT 

PROVIDER: S-EPMC11870814 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature