Responses to affective pictures depicting humans: late positive potential reveals a sex-related effect in processing that is not present in subjective ratings

We examined sex-related effects in the amplitudes of the late positive potential (LPP), an event-related potential elicited by the presentation of emotional stimuli. Sixteen females and 18 males viewed emotional pictures to perform a visual detection task. In female participants, viewing unpleasant pictures elicited larger LPP (550–900 ms) when the pictures contained humans (human pictures) than when they did not contain humans (non-human...