Researchers at the University of Vienna conducted a study to understand how dogs process human emotions. Brain scans of dogs were analyzed to see how they react to different facial expressions. The study's findings were published in a scientific journal.

A team of scientists used scans to determine how dogs' brains respond to various emotions, including happiness and fear. The study's results provide insight into the abilities of dogs to recognize human emotions. Further information about the study is available from the original source, which includes comments from the study's authors and more details about the research methodology.