Expectant fathers, all those hours spent talking to your future child will not have been in vain … Provided, however, expected to have the eighth month of pregnancy and to speak loud enough. A Canadian study, the fetus begins to hear during the thirtieth week of gestation. But nothing yet to determine the influence of these sounds on its development.
This is the first time we succeeded in establishing the age at which the fetus begins to hear sounds from outside. A work of Barbara Kisilevsky of Queen’s University (Canada) consistent with the hypothesis that the auditory system of the fetus develops during the seventh month.
134 fetuses bugged
And baby music The Canadian study examined 134 fetuses from 27 to 36 weeks gestation. Heart rate and fetal movements were measured using an ultrasound scanner while a computer emitted a noise. The researchers determined that before the thirtieth week of gestation, the fetus does not respond. “If we emit a loud sound – really strong (110 dB), the 30-week-old fetus to move him, but we get no response before this age,” says Dr. Kisilevsky. Nevertheless, it remains unclear what they mean and what kinds of sounds they can distinguish. According to Dr. Kisilevsky, “because the mother’s abdomen and tissues attenuate sound, we believe that the sound level reaching the fetus is in the range of 70-75 dB (which corresponds approximately to the noise level of a discussion normal) “.
Mozart makes it smart?
Ladies, you would then 7 months pregnant to choose the first sounds your child hears. However, tell your neighbors, because you need to raise the volume to 110 decibels, which is about one volume of a rock concert or a jackhammer …
Today, there is no evidence that these sounds have any influence on fetal development. According to Dr. Kisilevsky, “we assume that the voice of the mother and the fetus perceives the sounds that may impact on its development – preparing him to prefer and recognize their native language. But we do not know if your child will brighter, for example, if they perceive of music in utero, despite the notions conveyed in mainstream media. ”
2 A study from the University of Nottingham published in 1999 had found qu’exposes to music, the brains of fetuses two out of three responded. But the small number of babies studied limited the scope of research findings.
Too much stimulation even seem to have a harmful effect. Chicks stimulated by sounds before hatching, had difficulty hearing a few days after leaving the egg.
It would seem, ladies, that your CD collection of classical music or whale songs have no other purpose than to relax. Especially since the soundscape of your sweet home may soon be the scene of other songs, perhaps less melodic …