The selective processing of briefly presented affective pictures: An ERP analysis

TLDR

Recent ERP studies have shown that affective pictures are processed selectively. This study examined whether such selective processing occurs when pictures are shown only briefly. Pleasant, neutral, and unpleasant images from the IAPS were presented for 120 ms while dense‑array ERPs were recorded. Briefly presented affective pictures elicited selective processing, evidenced by an early endogenous negative shift over temporo‑occipital sensors for pleasant and unpleasant images versus neutral, and by enlarged late positive potentials over centro‑parietal sites, indicating that a quick glimpse of emotionally relevant stimuli is sufficient to tune the brain for selective perceptual processing.

Abstract

Abstract Recent event‐related potential (ERP) studies revealed the selective processing of affective pictures. The present study explored whether the same phenomenon can be observed when pictures are presented only briefly. Toward this end, pleasant, neutral, and unpleasant pictures from the International Affective Pictures Series were presented for 120 ms while event related potentials were measured by dense sensor arrays. As observed for longer picture presentations, brief affective pictures were selectively processed. Specifically, pleasant and unpleasant pictures were associated with an early endogenous negative shift over temporo‐occipital sensors compared to neutral images. In addition, affective pictures elicited enlarged late positive potentials over centro‐parietal sensor sites relative to neutral images. These data suggest that a quick glimpse of emotionally relevant stimuli appears sufficient to tune the brain for selective perceptual processing.