Newborn Babies Cry in Native Tongue

Charles Q. Choi, Special to LiveScience, LiveScience.com

From their very first days, the cries of newborns already bear the mark of the language their parents speak, scientists now find.

French newborns tend to cry with rising melody patterns, slowly increasing in pitch from the beginning to the end, whereas German newborns seem to prefer falling melody patterns, findings that are both consistent with differences between the languages.

This suggests infants begin picking up elements of language in the womb, long before their first babble or coo.

Prenatal exposure

Prenatal exposure to language was known to influence newborns. For instance, past research showed they preferred their mother's voice over those of others.

Still, researchers thought infants did not imitate sounds until much later on. Although three-month-old babies can match vowel sounds that adults make, this skill depends on vocal control just not physically possible much earlier.

However, when scientists recorded and analyzed the cries of 60 healthy newborns when they were three to five days old - 30 born into French-speaking families, 30 into German-speaking ones - their analysis revealed clear differences in the melodies of their cries based on their native tongue.

Imitating Mom

The way babies imitate melody patterns relies just on a command over their voiceboxes they had before birth, instead of the more advanced control of their vocal tracts they need for vowel sounds. As such, they can begin mimicking their mothers "at that early age," said researcher Kathleen Wermke, a medical anthropologist at the University of Würzburg in Germany.

"Newborns are probably highly motivated to imitate their mother's behavior in order to attract her and hence to foster bonding," Wermke said.

The researchers conjecture that the development of spoken language is rooted in melody, and that these findings support their idea. "Music and language might have co-evolved for a certain time during evolution and share a primordial form of communication system," Wermke told LiveScience.

The scientists detailed their findings online November 5 in the journal Current Biology.

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