A team of researchers from Emory University has determined dogs are even smarter than we think.
Man’s best friend is a pro when it comes to learning things like “sit” and “shake.” There’s even a dog named Stella who is learning how to talk using a special sound board. It’s always been clear that canines are intelligent animals. But dogs and numbers don’t seem to go together. You don’t see your pup doing complex mathematics, after all. But neuroscientist Gregory Berns has uncovered exciting information related to canine intelligence. It turns out that even untrained dogs have an innate ability to recognize numbers and quantity. In other words, dogs can count!
For his study, Berns and his colleagues gathered 11 dogs of different breeds. There were a few pit mixes, Border Collies, and retriever mixes. Their goal was to find out if dogs experience brain activity that would indicate a knack for numbers.
Before they could get started, all the dogs were trained to voluntary enter an MRI machine and remain motionless. This was a key part of the experiment. They were taught to enter the scanner, rest their heads on a block, and look toward a screen at the opposite end.
Check out this video showing how the dogs did it.
For the experiment, each of the dogs was shown a series of images that included any number of gray dots on a black background. The number and/or size of the dogs changed every 300 milliseconds. While the dogs were watching the images, scientists monitored their brain scans to look for activity that would be associated with numbers and quantity.
What they found is that dogs process numbers in the same area of the the brain as humans. Eight out of the eleven dogs showed brain activity when the number of dots changed—indicating they were processing the difference in quantity. When the dogs saw four large dots switch to nine large dots, their brains took notice. But when the four large dots changed to four small dots, that area of their brain remained quiet.
Krista Macpherson, a canine cognition researcher, said in Science Magazine,
“These findings support our understanding of the Approximate Number System; previously, these effects had only been demonstrated behaviorally in dogs, so this is an important contribution to our understanding of canine cognition.”
This experiment shows that while some dogs can be taught to count, the canine brain is biologically wired to have at least a basic understanding of numbers. The best way to describe it is how humans can tell the difference between one slice of pizza and a whole pie. Dogs can look at two piles of treats and know which one has the most. They can’t tell you exactly how many there are without a little training, but don’t underestimate their intelligence.