Question

Which part of the face do we but mice do not

Answer 1

Pleasure, disgust, fear - the facial expressions that reflect these emotions are the same in every human. For example, if we are disgusted by something, our eyes become narrower, our nose wrinkles, and our upper lip distorts asymmetrically. Even newborn babies react with distinct facial expressions when they are sad, happy or disgusted. We also think to recognize feelings in the facial expressions of our pets. In contrast, the faces of other animals can appear expressionless to us. This is wrong, as the Max Planck scientists now show.

Using machine vision, the researchers were able to reliably link five emotional states to the facial expressions of mice: pleasure, disgust, nausea, pain and fear were clearly distinguishable for the computer algorithms. They could even measure the relative strength of these emotions$.$