Study: Dogs can discern human emotions from facial expressions

New research published in the Journal iScience sheds light on dogs' ability to interpret human emotions through facial expressions. The study found that dogs' brains actively respond to happy human expressions. More significantly, dogs can differentiate between negative emotional states, such as sadness, fear, and anger, compared to joyful facial features.

Study co-author Raúl Hernández-Pérez of the University of Vienna noted that both humans and dogs are adept at perceiving fine details in faces. Studying canine brains provides valuable insight into how their social and emotional understanding of humans has evolved.

Previous behavioral studies have already demonstrated dogs' sensitivity to human emotional cues. For instance, dogs have been observed choosing a box indicated by a human with a happy expression over one treated with fear or disgust. Earlier fMRI studies have also identified a region in the canine cortex that shows a stronger response to human faces than to dog faces.