Dogs can understand human speech, scientists discover | The ...

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While this was only the dogs’ “word-meaning representation”, it still shows they had an idea of what message the specific sound of an individual human word was designed to convey.
Lead researcher Dr Attila Andics, of Eötvös Loránd University, Budapest, said: “During speech processing, there is a well-known distribution of labour in the human brain.
“It is mainly the left hemisphere’s job to process word meaning, and the right hemisphere’s job to process intonation. The human brain not only separately analyses what we say and how we say it, but also integrates the two types of information, to arrive at a unified meaning.
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“Our findings suggest that dogs can also do all that, and they use very similar brain mechanisms.”
During the brain scans, the researchers spoke words like “good boy” and “well done” spoken with a praising intonation, the same words in a neutral voice and also words that were meaningless to them, like “however”, in both intonations.
The scans showed the dogs left brain tended to be activated when they heard words that were meaningful to them. This did not happen when they heard words they did not understand. The right hemisphere activated when they heard a praising intonation.
But the reward centre of their brains – which responds to pleasurable sensations like being petted, having sex and eating nice food – was only activated when they heard praising words spoken in a praising intonation.
“It shows that for dogs, a nice praise can very well work as a reward, but it works best if both words and intonation match,” Dr Andics said.
“So dogs not only tell apart what we say and how we say it, but they can also combine the two, for a correct interpretation of what those words really meant.
“This is very similar to what human brains do.”
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This appears to contradict the idea that dogs only understand tone of voice and do not have an idea of the words actual meaning.
While they might respond tentatively to a praising tone using words they do not understand – or even insults – they are only genuinely happy when they understand the praise they are receiving.
The researchers described their work as a first step towards understanding how dogs interpret human speech.
A statement about the study said the researchers believed their results could “help to make communication and cooperation between dogs and humans even more efficient”.