What is the difference between LEFT-HANDING and left-handedness?

Greater efficiency of all double organs - ear, arm, leg - on the same side of the body determines laterality, i.e. whether we are right or left. Left-handedness (or right-handedness) is one of the symptoms of the advantage of one half of the body over the other.

Nature has shaped most of us in such a way that we use our right hand, leg, eye and ear more efficiently, more often and more willingly. Hence the belief that the right side is better than the left side, and even the loser is said to have "two left hands". ) - it is determined by the greater efficiency of all double organs on the same side of the body, i.e. not only the hand, but also the leg, eye, ear.Left-handednessis only one of the symptoms of the advantage of one half of the body When all the organs located on the left side of the body are dominant, there is no need to worry, when the ones on the right are dominant - there is no need to worry either. objects with his left eye, squinting his right, when he hears a whisper, he puts his left ear up, shoots goals with his left leg.

In left-handers, the right hemisphere of the brain is dominant

Man is asymmetrical because his most important organ -the brain- consists of two complementary hemispheres that perform different functions. Neurological research shows that the right hemisphere, called the emotional hemisphere, is responsible for abstract feelings and thinking, and the left, called rational, for speech. It is known that the main nerve pathways, carrying information to and from the brain, cross: the left hemisphere commands the right side of the body, the right - the left. So it is the left brain that decides what the right hand does. U so-called left hand, the right, emotional hemisphere is dominant. Maybe that's why famous artists such as Michelangelo, Nicolo Paganini or Charlie Chaplin were left-handed?

Important

One concept blames genes for left-handedness. The probability of giving birth to such a child, when both parents are left-handed, is as high as 46 percent, and only 2 percent of right-handed parents. According to the theory of the American neurologist Norman Geschwind, left-handednessresults from elevated levels of the male sex hormone testosterone in utero. By inhibiting the development of the left hemisphere, it strengthens the right (driving left hand). This theory is confirmed by statistics: more boys than girls are left behind.

Do not force it

In infants, it is difficult to determine which side of the body is dominant. As a rule, around the 15th day of life, they start to look at their right hand, and only around the 40th - the left. But this does not prove anything, because sometimes, even at the beginning of school, it is difficult to determine exactly which side is dominant in a student. Scientists themselves talk about several types of lateralization:

• homogeneous, when a person does everything with their right or left eye, ear, hand and leg;
• crossed, when, for example, the left eye or ear and the right hand or leg are dominant.

There is a lot of configuration here; undetermined, i.e. it is not known which side and which organs dominate in humans. Because he can write frequently and efficiently, for example, with his right and left hand. Regardless of which side of the child's body is dominant, it should not be forcibly changed. If it is a left hand, let it remain. Forcing your child to use your right hand will leave your child feeling stressed, guilty and undervalued. He may experience emotional disorders, anxiety, trouble concentrating, and finally problems with efficient reading and writing. It also happens that a child who uses one hand or the other time does not do anything well with either of them. Then it is worth taking a close look at it, conducting research and directing it in one direction.

You must do it

The decision on which hand is to be used by your child should be made together with the psychologist after the examination.

At home, you can perform simple tests to check which side of the child is more efficient. Offer him some games and watch them closely during this time. By comparing the efficiency, speed and precision of performing activities, you can tell the psychologist about it later. Such information will surely help him make a binding decision.

Observe the efficiency of your eyes, ears, hands and legs. If it turns out that a child has crossed or undetermined laterality, deciding which hand to use may be dependent on additional research, primarily on determining their intellectual level. Years of experience have shown that it is easier to target a child with a higher IQ. The average person may become discouraged from learning.

In order to avoid trouble, it is better to go to a psychological and pedagogical counseling center in advance and consultspecialist.

How to check if the child is right- or left-handed

To find out which arm, leg, eye and ear are better for your child, do a few fun exercises with them. Give your observations to the psychologist. Draw two circles on the cardboard. Ask your child to cut them out with one hand, then with the other. Look who reached for the scissors first. Evaluate the time and quality of the cut circles. When the child tosses the ball upwards with one hand, then with the other, watch which one he throws and grasps more efficiently. Ask your child to use one hand or the other to put 30 beads in the bottle. Make a note of which one you reached for them first and which one you put on more efficiently. Give your child a deck of cards. Have him solve a solitaire game with one hand, sometimes with the other hand. Check which one started and which one got it faster. Ask him to examine the room through a rolled-up piece of cardboard, as though through a telescope, and tell what he sees in turn. Make a note to which eye the roll is placed. Suggest your child to see through the keyhole what is happening in the adjacent room. Check which eye has placed on the buttonhole. Suggest that the child, while standing on one leg, pretend to be a stork. Remember where it stood. Give your kid the ball and ask them to score goals. See which foot is kicking the ball. Tell your child to call grandma, for example. Take a look at which ear the receiver is holding. Give your child a watch or a shell and let him listen to the chirping or hum. Look at which ear the item is placed on.

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