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.
Second Chance for a Pit Bull: Rescued from a Massive Tumor, Now Thriving
Animal shelters do incredible work giving pets a second chance. Some animals arrive at shelters in shocking condition, but they still step up to give them the love and care they need.
That was the case for a dog named Libby, who had a tumor the size of a volleyball. But now, her story has a happy ending.
In August, the Humane Society for Tacoma and Pierce County, in Washington state, took in a stray pit bull named Libby. They said the dog was “full of life” and had a “sweet face and kind eyes.”
However, Libby also had a serious medical concern: a 10-pound tumor the size of a volleyball, one of the largest masses they had ever seen:
Libby arrived at a hectic time for the shelter: HSTPC says Libby was just one of three urgent cases they responded to in 48 hours, and as Washington’s largest-intake shelter dozens of new animals were arriving every day.
Despite that, they resolved to give Libby the best possible care, even though they weren’t sure what the future had in store for the poor dog.
“She deserves the most compassionate care possible, but we don’t know what her outcome will be at this time,” the shelter wrote in August. “Our veterinary team is working on every possible option and will start with testing to understand what kind of tumor Libby has. For now, she is receiving pain medication to ease her discomfort and endless love from our staff.”
After giving Libby an x-ray, they discovered the tumor was in the bone of her upper right leg, and would require amputation. Reactive inflammation caused the tumor to swell to its unusual size, and was causing her agonizing pain.
Through generous donations from supporters, the shelter was able to pay for Libby’s leg amputation. The surgery, done by the vet staff at BluePearl Pet Hospital, was a success and Libby was finally free of the pain she had been living through.
Sadly, even though her tumor was gone, she was diagnosed with aggressive bone cancer, and her time on earth might be limited. But in happy news, Libby has found a home!
According to HSTPC, a vet tech fell in love with Libby and agreed to adopt her. Even though she knows that Libby might not live long, she wanted to fill her remaining days with love.
“There’s something in her eyes that begs for love and safety,” her new adopter said, according to a Facebook post. “I couldn’t turn away from that.”
Libby has now been renamed “Wiggles” and is enjoying her new home, playing with her dog brother and family and taking lots of cozy naps on the couch.
“Though we’re uncertain how much time she has left, we know she’ll spend her remaining days
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