In people it is known that most dreams occur during REM (rapid eye movement) sleep, according to the National Institutes of Health. Dogs also experience periods of REM sleep. Psychology Today’s website says that during REM their breathing becomes more irregular and shallow. There may be muscle twitching during REM and, when one looks closely, rapid eye movements behind closed eyelids can often be observed. It is during REM sleep that behaviors thought to be associated with dreaming (legs paddling, twitching, vocalizing, etc.) are most commonly observed.
What we want to believe about dog dreams
When we observe our dogs as they sleep, it’s just about impossible to imagine that they are not dreaming.
Just like the rats studied by Wilson and Louie, it is tempting to believe that our four-legged best buddies are reenacting their recent experiences; playing at the dog park, sniffing in the woods, chewing on a treasured bone, and chasing squirrels.
The National Institutes of Health says that Sigmund Freud theorized that dreaming was a “safety valve” for our unconscious desires. Perhaps he is correct, and, when our dogs sleep, they dream about catching the neighbor’s pesky cat, continuous belly rubs in conjunction with unlimited dog treats, and stealing the Thanksgiving turkey from the dining room table.
If you have any questions or concerns, you should always visit or call your veterinarian -- they are your best resource to ensure the health and well-being of your pets.