The result of the work, published in the journal Current Biology, showed that canine brains react to voices in the same way that the human brain does. Crying and laughter did the same thing, perhaps explaining why dogs are attuned to human emotions.
For comparison, the team looked at the brains of 22 human volunteers in the same MRI scanners.
The scientists played 200 different sounds to their subjects, ranging from environmental noises, such as car sounds and whistles, to human noises and different sounds coming from dogs. When both the animals and the people heard human voices, crying or laughter, a similar region of the brain became active. Dog's whimpering or angry barking also caused a similar reaction in all volunteers. However, while the dogs responded to the human voice, their reactions were far stronger when it came to canine sounds.
I love dogs. I've lived with many of these intelligent animals over the years. Now, I wouldn't be capable of giving another dog a good quality of life, more's the pity. However, I remember with great fondness, the way each dog responded to me--ever ready to sympathize, forgive any fault, and offer love.