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When a dog tilts its head slightly, it can win over even the most stoic cat lover. This charming behavior is universally loved, yet few can explain why dogs do it. Are they aware of the effect they have on humans, using this adorable gesture to gain affection?
Experts suggest the true reason lies in a dog's ability to process information. A study published in the journal Animal Cognition in October 2021 found that dogs tilt their heads when they hear words that hold meaning for them. In the study, a team of researchers from the Family Dog Project research center observed 40 dogs over three months as their owners taught them names of various toys.
While most dogs failed to distinguish between the words by the end of the study, the dogs that did show an understanding displayed an intriguing behavior. These so-called 'gifted' dogs tilted their heads when they heard the name of a specific toy, as if to listen more intently. The researchers concluded that this suggests these dogs recognized the words as important, deserving of their full attention.
These findings support previous theories regarding head-tilting in dogs. Dogs are exceptionally adept at interpreting our body language and vocal cues. Whether you're scolding your dog for snatching food off the counter or praising them, they are absorbing your gestures and tone, even if the exact message isn't fully understood. The same goes for when you praise them; dogs are capable of identifying key words and sounds, so when they tilt their heads as you speak, they may be listening for words or inflections they associate with enjoyable activities like eating or playing.
Head-tilting may also be connected to the anatomy of a dog's ears. While dogs can hear frequencies that humans cannot, they are less precise at determining the source of sounds. A dog's brain measures tiny differences in the time it takes for a sound to reach each ear, so even a slight change in head position could help them gather more sensory information. Some experts believe that when dogs tilt their heads, they are adjusting their pinnae, or outer ears, to improve their ability to locate sounds.
Stanley Coren, from Psychology Today, suggests that vision might also play a role in this behavior. Try holding your fist in front of your nose, and you'll get a sense of how dogs perceive the world with a muzzle. When watching someone speak, the muzzle blocks part of their face, and by tilting your head, you'll see it more clearly. In addition to reading emotional cues in our voices, dogs can also interpret our facial expressions. Coren proposes that when dogs tilt their heads, they are trying to get a better view of our mouths, where many of our most expressive facial signals originate.
The 2021 study in Animal Cognition challenges some of these ideas. Dogs that tilted their heads in response to the names of their favorite toys were more likely to tilt their heads to the same side, regardless of where the command came from. While head-tilting may assist dogs in seeing or hearing more effectively in some situations, these physical factors don't account for every case. The researchers suggest that some dogs may have a preference for tilting their heads to one side, much like humans are left- or right-handed, and this could extend to their head-tilting behavior.
If your dog is a frequent head-tilter, it could be a sign of high empathy. Some experts have noted that dogs who are more socially anxious tend to be less likely to tilt their heads when spoken to. However, if your dog doesn't show this behavior, it doesn't mean they are unsociable (especially if they have pointy ears or a flatter snout). Even if the head-tilt is instinctual, dogs are more likely to repeat the action if owners provide positive reinforcement when it occurs.
