A recent study sheds new light on the world of dog–human communication, offering fresh insights into how our four-legged friends respond to human speech. Researchers in the Ethology Department at Eötvös Loránd University have indeed found that the brains of dogs “light up” more in response to a specific vocal tone. The details of these findings are published in the journal Communications Biology.
The Power of Baby Talk
“Baby talk” refers to the distinctive language adults use when interacting with infants and young children. The tone is typically softer and more melodic, with rising and falling intonations, which makes it more pleasant and engaging for little ones. Adults often accompany their words with exaggerated facial expressions, smiles, mimed facial expressions and gestures to reinforce the meaning of words and phrases.
Baby talk is regarded as an effective strategy for fostering children’s linguistic development. It exposes them to linguistic patterns and encourages them to imitate sounds and words. This form of language also strengthens the bond between adults and children, while promoting a secure environment.
Humans aren’t the only ones who understand this type of language. Indeed, the way humans adapt their speech when communicating with their young has recently been observed in bottlenose dolphins as well. It turns out that dogs are also sensitive to it.
Puppies, but also Adults
Earlier research had already suggested that using baby-talk with puppies helps sharpen their attention. In this study, researchers from York University found that this effect also applies to adult dogs.
For the study, Hungarian researchers employed a functional magnetic resonance imaging (fMRI) scanner to explore the phenomenon by monitoring the brains of trained dogs exposed to different tones of speech. Inside the machine, each dog heard voice recordings of twelve men and twelve women articulated for adults or for infants.
The researchers found that the dogs’ brains were more reactive to high-pitched speech directed at infants. Dogs were also particularly sensitive to the speech of women using baby-talk.
That the words directed toward a baby and toward a dog are so similar, and that dogs respond so well to both, is probably not a coincidence. For the authors, this sensitivity is likely rooted in the domestication process and the long-standing interactions between our two species over thousands of years.
In light of these findings, the researchers encourage dog owners to adopt this distinctive style of language when interacting with their pets. In doing so, you could forge even stronger bonds, while dogs might be more inclined to follow commands.
