Games with treats shed light on cognitive decline in dogs

New research offers a new window into cognitive decline in dogs.

It is tough to watch a dog deal with issues associated with aging. A senior dog that gets lost at home or starts showing more anxiety may be exhibiting signs of dementia. But by the time these signs show up, the decline may have been underway for years.

To catch that hidden decline earlier, University of Arizona researchers have developed a roughly 40-minute asses...