It happened in a fraction of a second. A slight tightening of the orbital muscles around the eyes and a quick, downward pull of the corners of the mouth.
The scientific foundation for micro-expression research was laid by psychologist in the 1960s. Through extensive cross-cultural studies, Ekman discovered that certain basic emotions— anger, disgust, fear, happiness, sadness, surprise, and contempt —are expressed through universal and recognizable facial muscle movements across all human cultures, indicating a biological, innate basis for these displays. micro+expression+training+tool+free+best
Testing your baseline ability and understanding the "Face Basics" of the 7 universal emotions (Anger, Fear, Disgust, Contempt, Joy, Sadness, Surprise). Paul Ekman Quizzes 3. Center for Body Language Test It happened in a fraction of a second