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.
An “unusual” dog called Pig that has no neck and a body that appears to have been chopped in half has become an internet sensation.
More than 27,000 people have joined a fans’ group in honour of the strange-looking animal, who is quickly becoming one of Alabama’s biggest stars.
Pig, who bears little resemblance to the curly-tailed farmyard animal, suffers from short spine syndrome and has bones that are fused together.
Her condition causes her to walk like a gorilla and she often loses her balance, toppling over like a toddler.
But she is not letting her disability get her down and her adventures are chronicled on a Facebook page called Pig the Unusual Dog.
Kim Dillenbeck, who adopted Pig after finding her in a forest, said her pet is “living life to the fullest”.
“She’s missing several inches of her spine (and) her joints, her hips … none of them are in the right position,” she added.
Dr Rachael Hudson-Breland, the vet who treats Pig, said the eight-month-old mutt is given “rock star” treatment at her clinic.
“I don’t think Pig really knows she looks different,” she said.
“She runs around, she plays. The only thing with Pig is … she has respiratory issues, so when she’s running around she gets a little more tired than most dogs.”
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