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In the current study, we explored how adolescents respond to a diverse range of age-appropriate visual emotional contents. Specifically, we investigated the extent to which self-reports of emotional arousal align with neuroaffective responses, as indexed by the Late Positive Potential (LPP). Since most of the studies that used the picture viewing paradigm are conducted with adults, we also recruited a sample of young adults to establish a benchmark to replicate previous findings. The results showed that the concordance between subjective and neural engagement varies depending on the emotional contents of the scenes. Specifically, images of threatening animals were rated high in emotional arousal and prompted the largest LPP in adolescents, while images of sad people and images of mundane activities were rated lower in emotional arousal and prompted the smallest LPP responses. Adolescents exhibited a significant dissociation in their responses to pleasant images depicting food and sport, both of which were rated high in emotional arousal but prompted relatively small LPPs. Results in young adults replicated previous findings, with higher emotional arousal and largest LPPs prompted by erotica and mutilations. In summary, the present study highlights the challenges of selecting age-appropriate material to assess neuroaffective responses to pleasant and unpleasant pictures in adolescents. To overcome these challenges, future studies may adopt experimental paradigms that will allow researchers to measure neuroaffective responses not just in free-viewing contexts, but also during anticipation and reception of actual rewards (and …