My baby can already remember things that happen while he's in the womb. Scientists say this new finding could help prevent abnormalities in utero (I am not sure how though.) We knew the baby could hear our voices and I just assumed he would remember those sounds. I guess these findings make sense with what I already thought. Still, what a great insight into the mind of a baby! I can't believe I will get to see him in just two months--or less!
FROM NBC: Scientists have found evidence of short-term memory in babies who are still in the womb! The research from The Netherlands shows fetuses at 30 weeks gestation have a short-term memory of about 10 minutes. Infants aren't considered full-term until they're about 40 weeks gestation. Researchers discovered this by examining how fetuses responded to repeated stimulation of sounds and vibration.
After a while, the fetuses got used to the stimulus, and didn't react as strongly when the process was repeated 10 minutes later. Researchers also found 34-week-old fetuses could store information and remember it a month later. FROM SCIENCE DAILY:Memory probably begins during the prenatal period, but little is known about the exact timing or for how long memory lasts. Now in a new study from the Netherlands, scientists have found fetal short-term memory in fetuses at 30 weeks.
The study provides insights into fetal development and may help address and prevent abnormalities. Published in the July/August 2009 issue of the journal Child Development, it was conducted by researchers at Maastricht University Medical Centre and the University Medical Centre St. Radboud.
The scientists studied about 100 healthy pregnant Dutch women and their fetuses, measuring changes in how the fetus responds to repeated stimulation. After receiving a number of stimuli, the fetus no longer responds to the stimulus as observed by ultrasonography and the stimulus is then accepted as "safe." This change in response is called "habituation." In a second session, the fetus "remembers" the stimulus and the number of stimuli needed for the fetus to habituate is then much smaller.
Based on their research, the scientists found the presence of fetal short-term memory of 10 minutes at 30 weeks. They determined this because a significantly lower number of stimuli was needed to reach habituation in a second session, which was performed 10 minutes after the first session.
They also found that 34-week-old fetuses can store information and retrieve it four weeks later. Fetuses were tested at 30, 32, 34, and 36 weeks, and again at 38 weeks. The 34- and 36-week-old fetuses habituated much faster than the 38-week-old fetuses that had not been tested before. This implies that these fetuses have a memory of at least 4 weeks—the interval between the test at 34 weeks and that at 38 weeks.
"A better understanding of the normal development of the fetal central nervous system will lead to more insight into abnormalities, allowing prevention or extra care in the first years of life and, as a consequence, fewer problems in later life," according to the study's authors.-NewsAnchorMom Jen
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