How Dogs Love Us: A Neuroscientist and His Dog Decode the Canine BrainEmory University neuroscientist Gregory Berns had spent decades using imaging technology to study how the human brain works. That changed when he and his family adopted Callie, a shy, skinny terrier mix, who inspired Berns to tackle the question: What is my dog thinking? Berns learned that military working dogs operate calmly in the most challenging environments, leading to a radical notion: Would it be possible to train dogs to hold completely still