Paul Ekman, PhD - With over a year of wearing masks, many of us have become aware of the ways in which certain facial expressions are harder to detect with partially covered
![Examples of the Ekman-Friesen Pictures of Facial Affect used in the... | Download Scientific Diagram Examples of the Ekman-Friesen Pictures of Facial Affect used in the... | Download Scientific Diagram](https://www.researchgate.net/publication/279178495/figure/fig1/AS:614158332620800@1523438165009/Examples-of-the-Ekman-Friesen-Pictures-of-Facial-Affect-used-in-the-computerized-task.png)
Examples of the Ekman-Friesen Pictures of Facial Affect used in the... | Download Scientific Diagram
![1: Photographs of facial expressions from the Ekman and Friesen (1976)... | Download Scientific Diagram 1: Photographs of facial expressions from the Ekman and Friesen (1976)... | Download Scientific Diagram](https://www.researchgate.net/publication/252068424/figure/fig1/AS:650031598166094@1531991018946/Photographs-of-facial-expressions-from-the-Ekman-and-Friesen-1976-Pictures-of-Facial.png)
1: Photographs of facial expressions from the Ekman and Friesen (1976)... | Download Scientific Diagram
![Sample facial expression sequences. Images provided by Paul Ekman and... | Download Scientific Diagram Sample facial expression sequences. Images provided by Paul Ekman and... | Download Scientific Diagram](https://www.researchgate.net/publication/2672166/figure/fig3/AS:667784048566280@1536223532730/Sample-facial-expression-sequences-Images-provided-by-Paul-Ekman-and-Joe-Hager-at-the.png)