A group of researchers has got the answer as to why a baby's first words are mama or dada. They say the newborn's brain may simply be hard-wired to recognize certain repeated word patterns.
Using the latest optical brain imaging techniques, University of British Columbia post-doctoral fellow Judit Gervain and a team of researchers from Italy and Chile reviewed brain activities of 22 newborns (2-3 days old) when exposed to recordings of made-up words.
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They found increased brain activities in the temporal and left frontal areas of the newborns' brain whenever the repetitious words were played. Words with non-adjacent repetitions ("bamuba" or "napena") elicited no distinctive responses from the brain.
"It's probably no coincidence that many languages around the world have repetitious syllables in their 'child words' - baby and daddy in English, papa in Italian and tata (grandpa) in Hungarian, for example," says Gervain from UBC Dept. of Psychology's Infant Studies Centre.
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"The language centre of most right-handed adults is located on the left side of the brain. This is consistent with our finding with new born babies and supports our belief humans are born with abilities that allow us to perceive and learn our mother tongue systematically and efficiently," says Gervain.
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The study has been published in the current issue of the Proceedings of the National Academy of Sciences online Early Edition.
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