![]() ![]() Nevertheless, in the 1990s, Paul Ekman expanded his list of emotions, including a range of positive and negative emotions not all of which are encoded in facial muscles. ![]() Microexpressions express the seven universal emotions: disgust, anger, fear, sadness, happiness, contempt, and surprise. Microexpressions cannot be controlled as they happen in a fraction of a second, but it is possible to capture someone's expressions with a high speed camera and replay them at much slower speeds. Unlike regular facial expressions it is either very difficult or virtually impossible to hide microexpression reactions. ![]() Human emotions are an unconscious biopsychosocial reaction that derives from the amygdala and they typically last 0.5–4.0 seconds, although a microexpression will typically last less than 1/2 of a second. Innate result of voluntary, involuntary, and conflicting emotional responses ![]()
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February 2023
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