The difference between left-handed and right-handed people
The nervous system of our human body is cross-oriented. Left-handed people are left-handed because their right brain is stronger than their left brain. Modern brain science believes that the left brain is the "rational hemisphere" in charge of logical thinking of words and numbers, and the right brain is the "artistic hemisphere" in charge of imaginative thinking and music. In other words, left-handed people are more emotional than right-handed people.
Wrong left hand direction
Some parents, seeing some famous examples, began to cultivate their children's ability to work and write with their left hands at an early age, mistakenly thinking that their children can be more productive with their left hands or become "left-handed". As everyone knows, these celebrities began to realize that they were "left-handed" after they became famous, not because they were "left-handed". Do not put the cart before the horse!
There are indeed some early studies to support this view. For example, Stanley Collen, a psychologist at the University of British Columbia in Canada, conducted two studies involving thousands of people in the early 1990s 1968+ 1990, pointing out that left-handed men scored higher in divergent thinking tests, but women did not have this difference. Generally speaking, researchers use this test to measure the level of creativity, such as asking subjects to find as many connections between several things as possible, or to name as many uses as possible for a brick.
Collen's other findings include that left-handed people live shorter lives, are more likely to live a poor life, have a higher probability of mental illness, and mature later. However, in the next two decades, more and more evidence shows that handedness has nothing to do with these conditions
Clare Porac, a professor of psychology at Pennsylvania State University, said there was no strong evidence that left-handed or right-handed people performed better in divergent thinking tests. Similarly, many large-scale studies in Britain, Australia and New Zealand in the past decade have also pointed out that there is no significant difference between left-handed and right-handed people in IQ tests.
Facts have proved that 1 and "left-handed" people have no higher IQ than the average person, so there is no reasonable evidence for the view that "left-handed" is smarter.
2. Many "left-handers" are thought to be the result of the damage to their left brain in the process of growth and development, which makes their dominant hand shift from the right to the left, instead of being born smart.
3. Some mental diseases, such as schizophrenia, epilepsy, alcoholism, etc. , has a higher proportion of "left-handed" than ordinary people, so parents should remember to generalize!
Experts remind that there is no definite result that left-handed people must have mental or behavioral problems, but the difference in brain development may be related to chirality. Non-right-handedness may mean that brain development is different from that of right-handedness, but this does not mean that they must have mental or behavioral problems, nor does it mean that their problems are caused by their habit of using their hands.
However, most people in this world are right-handed, and it is inconvenient for left-handers to live in such an environment designed for right-handers. When a mother faces a left-handed baby, she doesn't have to ask the baby to correct it, just let it go.
reference data
Baidu: /s? id = 1563089262 1 14509。 Spider & for = PC