Dogs discern speech patterns like humans do
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Researchers in Hungary studied how dogs and people process speech, finding both species recognize words based on consonant sounds.
Twenty people and twenty family dogs participated in the study, listening to continuous speech streams. Scientists measured brain activity using electroencephalography (EEG) to observe how participants responded to patterns of consonants and vowels forming three-syllable words. They also played recordings with random syllable sequences as a control.
The study revealed that both human and canine brains responded more strongly to words structured by consonants, showing a specific brain response about 400 milliseconds after each word began. This suggests dogs aren’t simply reacting to sound regularity, but actually separating words based on their consonant framework.
Researchers also studied dogs who spent their first three months in shelters or on the street, and found they showed the same preference for consonants as dogs raised in homes, indicating this ability isn’t limited to early development. However, the research did not demonstrate that dogs understand the meaning of words. While people also showed some recognition of words based on vowel sounds, dogs did not.
The human brain processed the rhythm of individual speech sounds, while dogs processed at the syllable level. Attila Andics, the lead researcher at ELTE, believes the findings demonstrate that a built-in human language system isn’t necessary for recognizing speech patterns, and that regular exposure to speech and general pattern learning can be enough.
