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Babies and Intelligence: The Latest Findings

Not so long ago the conventional wisdom was that babies only wanted food, warmth and to be kept dry. Many thought babies incapable of learning until they were at least five to six months old.Today, doctors and scientists believe babies begin learning on their first day of life.

Researchers at the Eunice Kennedy Shriver National Institute of Child Health and Human Development, a federal agency whose goal is to identify which experiences can influence healthy development, note that babies are strongly influenced by their environment. A baby will smile if her mother does something the baby likes. A baby learns to get the best care possible by smiling to please her mother or other caregiver. This is how babies learn to connect and communicate with other people.

Scientists say the ability to learn exists in babies even before birth. A recent study from the Netherlands found evidence that unborn babies can remember sounds. Dutch researchers studied almost one hundred pregnant women. They played sounds to the fetus and watched its movements with ultrasound equipment . They found that by thirty weeks of development the fetus could remember a sound for ten minutes. By the thirty-fourth week, it could remember the sound for four weeks.

Many experts say the first years of a child’s life are important for all later development. This is supported by a study which shows how mothers can strongly influence social development and language skills in their children.

The study involved more than one thousand two hundred mothers and children. Researchers studied the children from the age of one month to three years and observed the mothers playing with their children four times during this period.

The researchers attempted to measure the sensitivity of the mothers. The women were considered sensitive if they supported their children’s activities and did not interfere unnecessarily. They tested the children for thinking and language development when they were three years old. The researchers also observed the women for evidence of depression.

The children of depressed women did not do as well on tests as the children of women who did not suffer from depression. The children of depressed women did poorly on tests of language skills and understanding what they heard.

These children also were less cooperative and had more problems dealing with other people. The researchers noted that the sensitivity of the mothers was important to the general health of their children. Children did better when their mothers were caring, even when the women suffered from depression.

Another study suggests that low birth weight babies with no evidence of disability may be more likely than other children to have physical and mental problems. American researchers studied almost five hundred boys and girls. They were born in, or admitted to, one of three hospitals in New Jersey between nineteen eighty-four and nineteen eighty-seven. At birth, each child weighed fewer than two thousand grams.

The boys and girls had an average age of sixteen at the time of the study. They were asked to complete intelligence and motor skill tests in their homes and their test results were compared with those of other children their age.

The study found that the young people with low birth weight often had more problems with movement skills than others. These problems were more common among males, those with injured nerve tissue in the brain and those who had been given oxygen for several days as babies.

Experts say the first three years of a child's life is the most intensive period of language and speech development. This is the time when the brain is developing. Language and communication skills are believed to develop best in an environment that is rich with sounds and sights. Also, the child should repeatedly hear the speech and language of other people.

The National Institutes of Health says evidence suggests there are important periods of speech and language development in children. This means the brain is best able to learn a language during this period. Officials say the ability to learn a language will be more difficult if these periods pass without early contact with a language.

The first signs of communication happen during the first few days of life when a baby learns that crying will bring food and attention. Research shows that most children recognize the general sounds of their native language by six months of age. At that time, a baby also usually begins to make sounds. These sounds become a kind of nonsense speech over time.

By the end of the first year, most children are able to say a few simple words. But they may not understand the meaning of their words. By eighteen months of age, most children can say eight to ten words. By two years, most children are able to make simple statements, or sentences. By ages three, four and five, the number of words a child can understand quickly increases. It is at this age that children begin to understand the rules of language.

A long-term American study shows the effect of early education on future learning abilities. The study followed more than one thousand three hundred children from birth through the ages of fifteen. It found that children who received higher quality care before starting school had better language skills by those ages than children who had lower quality care.

The study is known as the National Institute of Child Health and Human Development Study of Early Child Care and Youth Development. It is said to be the largest, longest lasting and most complete study of child care in the United States.

The children included in the study were born around nineteen ninety-one in ten areas of the country. Researchers examined the quality and amount of child care the children received until they were four and one-half years old. Child care included any care provided by people other than the child’s mother that lasted at least ten hours a week. This included any care given by fathers or other family members.

The researchers then examined each child’s performance in school and social development. They also measured other influences, such as the quality of classroom education and parenting.

The researchers examined whether the developmental qualities that had been observed in young children were still present a few years later. They found that the older children who had received higher quality child care continued to show better ability in tests of language skills.

Researchers tested the children’s ability to name objects shown in a series of pictures. The study confirmed that a link between high quality child care and better test results continued as the children grew older. It also found that the children’s ability was not dependent on the amount of time they had spent in child care.

New studies about how intelligence develops are published each year. Recently, Science News magazine reported findings from one such study. The report described research that suggests babies develop language skills from musical and rhythmic exchanges with their mothers. An interactive nursery rhyme like “Itsy Bitsy Spider” is an example of the kind of emotional exchange that helps babies to learn and grow emotionally and socially. Some researchers believe such songs may also prepare babies to learn the rules and practices of their culture.

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