Dogs’ brains are sensitive to the familiar high-pitched “cute” voice tone that adult humans, especially women, use to talk to babies, according to a new study.
The research, published recently in the journal Communications Biology, found “exciting similarities” between infant and dog brains during the processing of speech with such a high-pitched tone feature.
Humans tend to speak with a specific speech style characterised by exaggerated prosody, or patterns of stress and intonation in a language, when communicating with individuals having limited language competence.
Such speech has previously been found to be very important for the healthy cognitive, social and language development of children, who are also tuned to such a high-pitched voice.
But researchers, including those from the Eötvös Loránd University in Hungary, hoped to assess whether dog brains are also sensitive to this way of communication.
In the study, conscious family dogs were made to listen to dog, infant and adult-directed speech recorded from 12 women and men in real-life interactions.
As the dogs listened, their brain activities were measured using a functional magnetic resonance imaging (fMRI) scan.
The study found the sound-processing regions of the dogs’ brains responded more to dog- and infant-directed than adult-directed speech.
This marked the first neurological evidence that dog brains are tuned to speech directed specifically at them.
“Studying how dog brains process dog-directed speech is exciting, because it can help us understand how exaggerated prosody contributes to efficient speech processing in a nonhuman species skilled at relying on different speech cues,” explained Anna Gergely, co-first author of the study.
Scientists also found dog- and infant-directed speech sensitivity of dog brains was more pronounced when the speakers were women, and was affected by voice pitch and its variation.
These findings suggest the way we speak to dogs matters, and that their brain is specifically sensitive to the higher-pitched voice tone typical to the female voice.
“Remarkably, the voice tone patterns characterizing women’s dog-directed speech are not typically used in dog-dog communication – our results may thus serve evidence for a neural preference that dogs developed during their domestication,” said Anna Gábor, co-first author of the study.
“Dog brains’ increased sensitivity to dog-directed speech spoken by women specifically may be due to the fact that women more often speak to dogs with exaggerated prosody than men,” Dr Gabor said.
Mother Dog Got Poisoned, But Spend Last Energy Lifting Her Head Beg To Save Her Puppies
“When we discovered Luna, my heart was torn apart…”
When she gave birth to her litter of six puppies and was attempting to get food, someone poisoned her by placing poisoned food underneath a car. The unfortunate female became trapped and consumed the poisoned food.
A little child discovered Luna in a terrible predicament. After waiting until the elderly man who had left the food had departed, he phoned the Prishtina Dog Shelter.
As soon as they get there, Luna begins to breathe excessively but still lifts her head in a desperate plea to save her little children. Her life was saved by an emergency injection from the volunteer’s vet.
She was taken into the Prishtina Dog Shelter, where she was reunited with her puppies…
He was quite frail and in need of rest, but she was OK. The next day, Luna was finally prepared to get her first vaccinations, which are essential for both her and her unborn children’s health. Although she was a little nervous, Luna performed well despite her fear.
Luna’s puppies are still too small and haven’t matured enough for adoption, but the morning after the veterinarian checked her, everything was well. When she first saw them, Luna was ecstatic.
She was really friendly, so she was definitely not a stray dog that had been left there.
Nikita and Luna, two orphans who were abandoned and found a day before Luna was, follow Luna, who allows them to nurse even though they are not her children. Isn’t she a sweet mother?
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