Fetus yawning reveals brain development
Excerpt:During the second and third trimester, fetuses yawn frequently, and those yawns can be distinguished in four-dimensional ultrasounds from other mouth-opening behaviors. As the fetuses mature, they seem to yawn less frequently, the researchers added. The findings, published Nov. 21 in the journal PLoS One, suggest yawning patterns of the fetus across pregnancy could be used to assess whether a growing fetus is developing normally. Scientists don't know why adults, let alone babies, yawn, said study co-author Nadja Reissland, a developmental psychologist at Durham University in the United Kingdom. But yawning behavior changes throughout life. [See Images of Yawning in the Womb] Yawns in adults are contagious, but babies don't catch them. Anemic babies yawn more in utero than healthy ones, according to a 1999 study detailed in the journal Ultrasound Obstetrics and Gynecology. And premature babies yawn more than full-term babies.
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yawning fetuses babies livescience ultrasound pregnancy obstetrics and gynecology premature babies behavior PLoS One womb developmental psychologist fetal development facial expressions gestation brain development Big Fat Durham University United Kingdom medical practice healthy images scans adults four-dimensional sleepiness trimester Brainy trajectory Facebook Twitter Incredible three-dimensional findings fourth dimension Anemic team breast-feed Myths month complex six timesPeople:
Nadja Reissland
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| Sentiment | Quote |
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| -0.043261 | "In fact, yawning might be a trigger for brain maturation," she told ... |
| -0.0548795 | "In fact, yawning might be a trigger for brain maturation," she told LiveScience. "Ultimately, it could be used in medical practice. If you see a fetus yawning a lot, there might be some problem." |
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Country: United Kingdom
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PrintMedia: PLoS One
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PrintMedia: Ultrasound Obstetrics
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Organization: Durham University
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New study finds frequency of yawning may be indicator of fetus' health
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Fetus yawning reveals brain development
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- tia ghose
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