<p>Arousal and valence have long been studied as the two primary dimensions for<br>
the perception of emotional stimuli such as facial expressions. Prior correlational<br>
studies that tested emotion perception along these dimensions found broad<br>
similarities between adults and children. However, few studies looked for<br>
direct differences between children and adults in these dimensions beyond<br>
correlation. We tested 9-year-old children and adults on rating positive and<br>
negative facial stimuli based on emotional arousal and valence. Despite high<br>
significant correlations between children’s and adults’ ratings, our findings also<br>
showed significant differences between children and adults in terms of rating<br>
values: Children rated all expressions as significantly more positive than adults<br>
in valence. Children also rated positive emotions as more arousing than adults.<br>
Our results show that although perception of facial emotions along arousal and<br>
valence follows similar patterns in children and adults, some differences in ratings<br>
persist, and vary by emotion type.</p
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