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.
20 Pairs of People Who Made Us Believe That Time Travel Is Already Possible
Although each person is born with a unique set of genes, when kids are born, it’s impossible to avoid conversations about who they look the most like. And some people are lucky enough to find resemblances to their older ancestors, like a bolt from the blue. With children looking like an exact copy of their parents and grandparents, we’re almost ready to believe that it’s a result of some kind of reincarnation or wizardry.
And while scientists are still scratching their heads about our genes, we at Bright Side simply can’t help but wonder about what miracles nature is really capable of.
1. Princess Diana and her grandmother, Cynthia, made us wonder whether time travel already exists.
2. “A side by side of my 3x great-grandmother and my mother”
3. “I think I might be a clone and no one told me.”
4. This family’s genes are so strong.
5. “My dad and me, 1980 vs 2020”
6. “This is me in the mid-’90s and my son in 2020, not quite the same pose, but I like seeing the similarities!”
7. “My grandmother (1940) and me (2005) — I feel grateful to carry on her lovely genes.”
8. “I think it’s fun to look at my dad at 12 vs me at 12.”
9. “Me vs my mom’s yearbook photo (1977)”
10. “My son at a year old in 2004 and his great-great-grandfather at the same age in 1882”
11. “My whole life people have told me I look just like my mom when she was my age. I never saw it until I found this old picture of my mom.”
12. Nature’s miracles with genes will never cease to amaze us.
13. “My dad and me, both at the age of 14”
14. “Found this old picture of my great-grandma. I was amazed at how much I look like her!”
15. This mom and daughter look almost identical.
16. Seems like sometimes nature works like a 3D printer.
17. This granddaughter has features similar to her grandmother, and they both look so beautiful.
18. “My ancestor from the 1700s next to my dad — apparently my family’s looks haven’t changed much.”
19. “My dad’s mother and me, 70 years apart”
20. This bright smile passed through at least 2 generations.
Bonus: Princess Charlotte and Queen Elizabeth might not look alike, but the princess is surely the queen’s mini-me.
Have you seen this kind of resemblance in real life? Do you know any relatives that look like you?
Preview photo credit JUSTIN TALLIS /AFP / Getty Images, Max Mumby/Indigo / Getty Images Entertainment / Getty Images
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