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Dogs Can Read Human Emotions, Study Finds
11 Aug
Summary
- Dogs' brains can distinguish emotions in human faces.
- Specific brain regions activated by happy expressions only.
- Distinct activity patterns show dogs differentiate negative emotions.
New findings from the University of Vienna suggest that dogs can discern emotions displayed on human faces. Researchers utilized machine learning to examine brain scans of 12 dogs as they viewed images of people expressing various emotions.
The study, published in iScience, indicated that higher cognitive and reward processing areas in dogs' brains were activated exclusively by happy facial expressions. While anger, fear, and sadness did not elicit the same responses, distinct brain activity patterns emerged that differentiated fear from anger and sadness.
This research offers the first concrete evidence that dogs can distinguish between specific negative human facial expressions. Scientists believe this ability has evolved to facilitate cooperation between humans and dogs, impacting human-animal communication and care.
Future studies aim to explore how dogs integrate other cues like body language and voice, and to compare human and canine processing of emotional signals. The study's participants were pets from loving homes, and the researchers noted that dogs in different environments might react differently.
