Since at least the time of Aristotle, scholars have tried to understand how and why our faces betray our feelings -- from happy to sad, and the whole range of emotions beyond. Today, the question has ...

When worn on the face, the electrodes of this biometric "tattoo" can record variations in muscle activity to identify expressions and even monitor emotions.

Computer maps 21 distinct emotional expressions -- even 'happily disgusted'. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2014 / 03 / 140331153518.htm ...

Emotion-recognition software, or ERS, creates a 3-D face map, pinpointing 12 key trigger areas like eye and mouth corners.

The next big thing is “affective computing," wherein algorithms can supposedly read emotions on our faces and deliver information about what we want to companies.