A recent study has revealed that dogs are capable of distinguishing between different human emotions, including happiness, fear, and anger. The research, conducted by the University of Vienna, used machine learning to analyze brain scans of 12 dogs as they viewed images of human faces displaying various emotions.

Methodology and Findings

The study found that brain regions linked to higher cognitive functions and reward processing were activated only by images of happy strangers. In contrast, images of angry, fearful, or sad faces did not trigger these regions. However, when the researchers looked at the whole brain, they found distinct activity patterns that differentiated fear from anger and sadness.

According to the study’s senior author, Laura Cuaya, dogs have evolved to understand human expressions and cooperate with humans, and recognizing this ability can change how we communicate with and care for them. The researchers plan to investigate how dogs integrate other cues, such as body language and voice nuances, to interpret human emotions.

Original reporting: Texarkana Gazette — read the source article.