Any dog owner can attest to their furry friends' uncanny ability to sense when we're upset or joyful. Now, scientific proof backs this up through fMRI scans, revealing how dogs process human emotions.

The study, published in the journal iScience, found a specific brain region in dogs that processes happy facial expressions, similar to humans. Moreover, dogs can distinguish between negative emotions like anger, sadness and fear based on facial cues.

Lead researcher Raúl Hernández-Pérez from the University of Vienna explains, 'Humans are really good at picking up small details on the face, and so are dogs. This makes them very interesting to study.'

The team trained eight dogs—six border collies, one labrador and one golden retriever—to sit still during scans while being shown human faces for seven seconds each. The results showed heightened activity in areas associated with higher cognitive functions and reward when the dogs saw happy expressions.

This research not only deepens our understanding of canine cognition but also highlights how dogs can be valuable models for studying social and emotional processes in both species.