2016-10-0915:19 Xinhua News Agency's new media line
Xinhua News Agency, Beijing, 65438+ 10 9 New Media Specialist British media said that researchers found that the mother's genes determine how smart the child is, and the father has no effect.
According to the website of the British Independent (65438+6 October), women are more likely to pass on intelligence genes to their children, because intelligence genes are carried by X chromosomes, while women have two X chromosomes, while men have only one. In addition, scientists now believe that advanced cognitive function genes inherited from fathers may be automatically inactivated.
A class of genes called "conditional genes" can only work if they come from mothers and fathers. People think that intelligence gene is a kind of conditional gene, which must come from mother to play its role.
After experiments on transgenic mice, the researchers found that mice with extra maternal genes have big heads, big brains but small bodies; Mice with extra paternal genes have small brains and large bodies.
According to the report, the researchers found cells containing only maternal genes or paternal genes in six areas of the mouse brain that control various cognitive functions such as eating habits and memory.
Cells containing paternal genes gather in various parts of the limbic system of the brain, involving functions such as sex, food and provocation. However, the researchers did not find any paternal cells in the cerebral cortex, and the highest cognitive functions such as reasoning, thinking, language and planning were realized in the cerebral cortex.
According to the report, considering that people may be different from mice, researchers in Glasgow have adopted a more humane approach to explore intelligence. They interviewed 12686 people aged between 14 and 22 from 1994, and found that the inference drawn from the mouse experiment was valid in reality. Although the educational level, race and socioeconomic status of the participants were taken into account, the research team still found that the most reliable indicator for predicting intelligence was the mother's IQ.
However, research also clearly proves that heredity is not the only determinant of intelligence. It is estimated that only 40% to 60% of intelligence is inherited, and almost the same proportion of intelligence depends on the environment.
But as far as the non-genetic part of intelligence is concerned, mother also plays an extremely important role. Research shows that the strong emotional bond between mother and child is closely related to intelligence.
Researchers at the University of Washington have found that the deep affection between mother and child is very important for the development of some parts of the brain. After observing and analyzing the way a group of mothers get along with their children for seven years, the researchers found that the hippocampus of children who are emotionally dependent and satisfied with their spiritual needs is 65,438+00% larger than those who are indifferent to their mothers at the age of 65,438+03. Hippocampus is an area of the brain related to memory, learning and stress response.
It is believed that deep affection with mother will give children a sense of security and confidence in exploring the world and solving problems. In addition, a dedicated and caring mother will help children solve problems, thus further helping them develop their potential.
Of course, there is no reason to think that fathers can't play the same important role as mothers in the process of parenting. The researchers pointed out that many other characteristics determined by genes, such as intuition and emotion, can be inherited from the father, which is also crucial to releasing the potential intelligence, so the father should not be disappointed.