Paul Ekman. Micro Expression Recognition Training Tools - Detect Lies - Humintell. David Matsumoto's Blog - Micro Expression Expert & Founder - Humintell. 21 Different Facial Expressions?
Couretesy of dailymail.co.uk It’s not new, news that humans have a great many different facial expressions. It is also becoming more common knowledge that there are 7 universal facial expressions of emotion (anger, sadness, disgust, surprise, fear and happiness), which have been validated by numerous research studies.