The ability to read emotions from faces peaks between the ages of 15 and 30 and then declines markedly. https://www.tandfonline.com/doi/full/10.1080/02699931.2018.1454403 …pic.twitter.com/y4u54XLVio
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What if our ability to FAKE emotions via our expressions also peaked around the same age? Then after that age, it would become increasingly less important to be able to read what would be untrue and not very useful anyway. Could test via adults reading kids' expressions?
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