Which hemisphere of the brain is responsible for speech. The main functions of the cerebral hemispheres

Man is a universal being. He, unlike an animal, can feel, empathize, rejoice, be upset, dream. None of the creatures on the planet is capable of such emotions. So why are people given the opportunity to experience such unusual feelings? How is a person different from primacy? The brain is the main feature of the body. It is he who controls emotions, dreams, actions, however, here everything is not so simple. The functions of the left and right hemispheres control different actions. What is the left hemisphere responsible for? Why is there an opinion that people who have developed exactly the left hemisphere of the brain are distinguished by analytical thinking, developed logic?

The right hemisphere of the brain is more developed in women. This is the opinion that was prevalent among many doctors and psychotherapists. In fact, everything is a bit wrong. After all, how many women exist who have a purely analytical mindset, and how many there are representatives of the stronger sex with well-developed intuition. It turns out that it is impossible to conduct a separation of actions, guided by a gender trait. Further more. Scientists have determined that people use only 3-5% of their brain, although they can develop two hemispheres of the brain. This means that humanity will have a chance to read thoughts at a distance, feel the mood of others, perform complex calculations without the help of machines. There is an opportunity to go to a completely different standard of living, get rid of the presence of technology, learn to understand each other.

Scientists of the Middle Ages believed that the human brain is similar to flashes of fire. Eastern sages of the same era compared the mind with a lotus flower. Naturally, these are only allegories. In fact, the brain resembles a walnut fruit. But it sounded somehow ugly, so many images of a vital organ in the form of unusual things have survived to this day. Ancient scholars did not think about the connection between reason and action. It all came down to religion: if this happens, then God so commanded. The first who tried to study in detail the structure of the main organ, to find the relationship between the left and right hemispheres, was Leonardo da Vinci. A brilliant painter, inventor, mystic. However, the transfer of merits may take several pages. He is the first who could depict in detail the brain, all its parts. The second, no less brilliant creator of the Renaissance, - Michelangelo - created the picture "Creation of Adam." For a long time she had only artistic value. And only in the 19th century did people see a hidden code: - the image of the creator on the cloud exactly repeats the section of the brain. It also shows in detail its small parts, successfully disguised as various details.

Soon, many paintings were discovered hiding secret codes and signs. But, interestingly, humanity was able to consider them after hundreds of years. What prevented me from noticing interesting clues, why do people sometimes not see the obvious? The answer lies in the head. The structure of the main organ really resembles a nut: gyrus, two lobes of the hemispheres, a jumper connecting them. Everything is the same in the head: cerebral hemispheres, cerebellum, brain stem. These are the three main “departments responsible for human life. The large parts, covered with a shell, are interconnected by a corpus callosum - a kind of bridge. The cerebral cortex zone is responsible for all thoughts, actions performed by man. The structure of the cerebral hemispheres of the brain includes various areas responsible for the production of hormones, organ growth, vision, hearing - in a word, without the main organ, people would be like a simple stone.

Large parts are divided into frontal, occipital, temporal and parietal lobes. Each of the areas is unique in its own way and is responsible for the following actions. So, the functions of the cerebral hemispheres:

  • frontal areas support the vestibular apparatus. Thanks to their proper work, people stand, walk, perform actions. In fact, this is the control center, the brain “main point”. Any violations, injuries, injuries immediately lead to disruption of work: a person changes, deviations in development, strange behavior appear. The right side is responsible for thoughts, dreams, emotions, the left - for speech, diction, movements;
  • temporal parts are responsible for memory, this is a kind of "hard disk". Injuries occurring in whiskey can send the victim to prolonged amnesia. The left part is responsible for the specifics: names, numbers, names, dates. The right part keeps remembering, images, dreams. If trauma, malfunction, illness occurs in this area, then the victim ceases to understand speech. The defeat of the left area completely blocks recognition, the meaning of the dialect. Injury of the opposite temporal part will violate the emotional perception of speech, halftone, subtext;
  • the parietal part is responsible for all wounds, cuts, abrasions, more precisely, for the pain caused by them. The right parietal department will help to navigate in space, determines the proximity, the distance of finding things. His opposite "colleague" is responsible for reading, memory. Dyslexia is a disease that limits the ability to learn. It occurs due to a violation in the left parietal lobe of the head;
  • what are the occipital parts responsible for? Thanks to their proper operation, the eyes perceive, process, and transmit images. The developed left side notices details, small parts. The right lobe conveys a wealth of colors, color;
  • the task of the cerebral cortex is to control the behavior of the individual, to the ability to think and contemplate.

The cerebral hemispheres of the brain can be developed in the same way, however this is rarely observed: basically one of the parts dominates. This opinion has existed before. Now people have changed: more and more indigo children are born, the abilities of the human brain are developing. Returning to the very beginning, one can find the answer to the question of why people had not noticed hidden codes of paintings and works before. To decipher ingenious puzzles, you should use both lobes of the cerebral hemispheres, have developed intuition and excellent analytical thinking.

Distribution of duties

What is the left hemisphere of the brain responsible for and why does it dominate its fellow? The functions of the left hemisphere of the brain are as follows:

  1. Understanding of speech, ability to speak.
  2. Logics.
  3. Memorization of events, dates, names, actions.
  4. Actions of the right side of the body.
  5. The ability to think in a chain, to build logical series.
  6. Analytical abilities are also subject to the left hemisphere.

It is thanks to this part that mankind has made a technological revolution. All scientific discoveries were made by people with a dominant left side. What is the main left hemisphere of the brain responsible for and can it be attributed to wrong actions, murders, violence? First you need to understand that the brain dictates all actions. If a person commits violence, he is aware of the actions, but the question is different: how does he perceive them?

Scientists have conducted a series of studies with maniacs, killers, and people-savvy. The result was astounding: most of the experimental subjects believed that they had committed the right deeds, and besides, they carefully prepared for future crimes. That is, their left lobe of the brain planned all the actions, sorting out the order of the crimes, the sequence of actions. Maniacs scrupulously sought out their victims, the brain methodically determined the necessary details, highlighting the doomed from the crowd. It would seem that everything is simple: diseases provoke disruptions in the work of the head - hence the crime. However, tomography studies have shown that many criminals have developed both hemispheres of the brain, there are no tumors, injuries. Where is the “button" responsible for all the negativity? No answer found yet.

Another interesting fact: many gifted scientists, mathematicians, physicists, chemists are desperately unlucky in cupid affairs. They ignore romantic dates under the moonlight, visits to cafes; they are much more interested in sitting over an unresolved task or deriving another law. Why? The right hemisphere is responsible for romance, love, emotions, and people, specifically choosing a scientific path, develop the opposite part of the brain, constantly suppressing the right. How to be "nerds", how to develop the right hemisphere? The work of the cerebral hemispheres should ideally be the same, but you need to try.

The functions of the left and right hemispheres are very different. Emotional people have a better development of the right hemisphere, but this does not mean that they cannot solve algebraic examples. It’s just that such people are endowed with a musical gift, can empathize, developed intuition allows them to avoid difficult situations. Artistic gift, literary ability - all this is about the humanities. They develop their capabilities, sometimes suppressing the functions of the left brain. The situation with the "nerd in love" is repeated exactly the opposite. The cerebral hemispheres can work in tandem. A vivid example of this is indigo people, gifted personalities. The same Leonardo da Vinci was a brilliant painter, a “techie”, a physician, a prophet who foresaw the invention of many technical devices. I wonder which hemisphere of his brain was developed more strongly? Although it was thanks to the equivalent work of the right and left hemispheres of the brain that the famous “Mona Lisa” turned out, in the eyes of which scientists read a digital code. The best minds are trying to decrypt it, but so far to no avail.

Most faced a small problem: the inability to recall an elementary thing, the name of the city, the names of former classmates. Older people often complain about the fading of memory, but younger people sometimes forget the names of streets, events, dates. This may indicate a change in the structure of the brain; perhaps exercises for the brain are required. Crosswords, quizzes, analytical games such as "Monopoly" perfectly refresh the left side. But, interestingly, the more the left side of the brain with the analytical memory fades, the stronger and brighter the memories, past moments of life become. The development of the right hemisphere of the brain begins with a new force. This is noticeable in the example of people aged: they become more emotional, they are very easy to offend. The deja vu effect, when people see some moments more than once, is a kind of signal from the right hemisphere of the brain. Some scientists consider this a malfunction, a violation, but parapsychologists say the expansion of the functions of the right lobe.

Become a superman

The development of the hemispheres is of great importance. People will be able to cross the forbidden line, to explore uncharted territories, to look into the depths of space. Now a new generation is emerging that is capable of accomplishing such a task. Their thinking develops along with intuition. They are able to solve the most difficult tasks, but at the same time they can be empathists.

But what about those who live now? After all, there is no limit to perfection; synchronization of the hemispheres of the brain is available to anyone. How to develop the left hemisphere of the brain? It is enough to conduct mental gymnastics every day, to train visual memory. The same scanners, numbers, and sudoku are suitable for elementary classes: they have a good effect on memory, “revive” neurons of the cerebral cortex. The greatest effect is achieved by solving mathematical problems. Two or three exercises from a textbook of grade 6 will help to refresh memory, knowledge and have a positive effect on the work of the main organ. Useful reading. It is an independent reading of the book, according to scientists, that helps people who have suffered head injuries recover.

To develop the right hemisphere of the brain will help drawing lessons, listening to a variety of music styles. In this case, you should memorize the performers, the year of release of the composition, interesting facts about the work. Training should be carried out daily. Ten minutes of everyday activities will turn into a stunning effect in a couple of months. Audio books are recommended for people who have experienced stress and depression. The voice of the announcer filled with paints will draw imaginary pictures, thereby stimulating the right side of the head. A few hours a week - and the imagination will create whole films.

For the development of two parts of the head, combined exercises are suitable: creating a crossword puzzle with personal illustrations, performing colored origami, knitting. Yes, it’s the last lesson that has a positive effect on the work of the whole body: the motor skills of the hands are developing, drawing, loops are being counted, and the imagination is being drawn by a future masterpiece. Three in one, even four, because the result will be a wonderful thing.

Two hemispheres of the brain can operate not only geniuses. Anyone can develop psychic abilities in themselves. Daily exercises guarantee the development of an analytical mindset, you only need to work on yourself.

The main secret of our body is the structure and work of the brain.

As you know, this most important organ consists of two hemispheres - the left and the right. Their inequality was first stated by M. Dax - a doctor from France, who studied this issue in detail.

Based on the results of numerous studies, we can conclude that the left hemisphere of a brain does not work well in people who complain about it.

This part of the brain causes human ability to think logically and talk. It is directly related to words, symbols, signs. The main difference between the left hemisphere and the right is the method of processing incoming information. Thanks to the left hemisphere, we are building complex phrases, but the right is responsible for their emotional coloring.

If the left side of the brain works in normal mode, a person adequately assesses the joyful moments occurring in life, not affected  and has a good sense of humor. With damage to the left hemisphere, a person disappears, negative emotions appear, he becomes aggressive.

The left hemisphere has another important function: it responds to speech. It is noteworthy that they do not perceive any other sounds, be it the sound of the wind, the rustle of grass, laughter, etc. People with a well-developed left hemisphere consider truth as a relative category, they successfully cunning, masterfully embellish reality and even purposefully deceive. This part of the brain is responsible for the intellectual abilities of a person, counting, literacy, reading and thinking of a linear type. The left hemisphere allows us to think methodically.

Work on the development of the left hemisphere should be carried out from primary school age. Psychophysiologists note that for its normal operation it is important to regularly solve logical and mathematical problems. It is equally useful to solve crosswords. In the course of their decision, a person reasones, that is, acts not intuitively, but analytically.

Another way to activate the left hemisphere is to train the muscles of the right side of the body. As a result of systematic complex exercises, the memory improves significantly, mood swings disappearintuition develops.

To be in a good mood, it is necessary to load the left hemisphere with work, and not necessarily complicated. You can, for example, put several coins in your pocket and try to determine their value by touch, and then calculate the total amount.

Test: Which hemisphere is better developed?

To answer the question posed, it is proposed to perform simple tasks.

The principle is the same everywhere: if you do something better with your right hand, then your left hemisphere is more developed, and vice versa.

  1. « Castle". Cross, without hesitation, the fingers of both hands. The decisive factor is whether the thumb of your left or right hand is on top of you. If the right, then the left hemisphere is more developed, and vice versa.
  2. To complete the next task you need to cross your arms on your chest. Look which one is up there? If the right, then your left hemisphere is better developed.
  3. Clap your hands. In this case, pay attention to the leading hand, which moves more actively. If the left hand is more active, then the right hemisphere is more developed, if the right, then the left hemisphere.
  4. Another interesting test is this: you need to make both hands work synchronously. For example, take a pen in each of them. Draw different geometric shapes at the same time - a triangle, a square and a circle. Drawings made by the hand, which is the leader, are more clear lines.
  5. Prepare a sheet of paper. In its center, put a dot (bold). Take a pencil in your right hand and close your eyes. Now try to hit the improvised target at least fifteen times. Then do the same manipulation with your left hand. Now analyze in which case the accuracy of the hits is higher.
  6. Take a blank sheet of paper and draw two and a half and a half centimeters on it. Further you need to quickly shade them  (the first - with the right hand, the second - with the left, or vice versa). Now look at which square has the most lines. In a figure shaded by a leading hand, the stripes will be more frequent.

If you manage to complete most of the tasks right handthen you dominate left hemisphere  (since the left hemisphere is responsible for the right side of the human body, and the right - for the left side). And vice versa.

Of course, the informative value of one test may be lower than the other, but when combined, they make it possible to determine with maximum certainty which subject’s hand is leading. Thanks to simple tests, it will be possible to establish the functional specialization of the cerebral hemispheres. This information will help determine which exercises are worth paying attention to.

So, what is activation of the left hemisphere of the brain? This is a sequential excitation and inhibition of neurons. This process can be influenced in many ways. It turns out that a good mood is no longer an abstract state, but a completely achievable goal. You can take a fresh look at the world if you yourself want it. There are no more obstacles.

Develop both your hemispheres and good mood to you!))

The main area of \u200b\u200bspecialization of the right hemisphere is intuition. As a rule, he is not considered dominant. It is responsible for performing the following functions.

Processing non-verbal information: The right hemisphere specializes in processing information that is expressed not in words but in symbols and images.
Parallel information processing: Unlike the left hemisphere, which processes information only in a clear sequence, the right hemisphere can simultaneously process a lot of diverse information. It is able to consider the problem as a whole without applying analysis. The right hemisphere also recognizes faces, and thanks to it we can perceive the totality of traits as a whole.

Spatial orientation: The right hemisphere is responsible for the perception of location and spatial orientation as a whole. It is thanks to the right hemisphere that you can navigate the terrain and make mosaic puzzles.

Musicality: Musical ...

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How to develop the right hemisphere of the brain and why men and women need it: useful tips and exercises

The right hemisphere of the brain is responsible for creativity, creativity. That is why it is so important to develop the right hemisphere if you want to achieve great professional heights in life. To learn how to develop the right hemisphere of the brain, read the article below.

Each hemisphere has its own function.

If you look from an anatomical point of view, then the left and right hemispheres of the human brain have their own functions. They are as follows:

The right hemisphere is responsible for:

1) Imagination, creative function, fantasy, sense of beauty.

2) Musical abilities.

3) Verbal information (perception of words, the ability to build sentences and express themselves beautifully).

4) Perception of images and symbols.

5) Orientation in space.

6) Intuition.

7) Parallel processing of information, understanding of metaphors.

8) Control over the movements of the left side ...

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The right hemisphere of the brain and its effective development

The human brain needs constant development, but each of its hemispheres needs a special approach. The left and right hemispheres are responsible for different abilities, skills and feelings. In addition, each of them serves the opposite side of the human body: the right is the left, and the left is the right.

The development of a particular part of the brain determines your skills. For example, excessive sensitivity indicates the dominance of the right hemisphere of the brain, and logic - the left. Is it possible to develop the right hemisphere of the brain specifically by resorting to training and exercises? Of course yes.

Right Hemisphere - Features

Before you engage in the development of the right hemisphere, you need to figure out what it is responsible for. You should know that these are, first of all, emotions, intuition and creativity of human thinking.

With the active development of the right hemisphere, people are able to see the world holistically, without splitting the picture into elements. So...

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I analyzed an article I read on the Internet about the functions of the cerebral hemispheres. I compared the data obtained by the method of numerical logic of the science of Logicology with the text of the article and this is what came of it.

The human brain is the main department of the central nervous system, it is located in the cranial cavity. The brain contains a huge number of neurons, between which there are synaptic connections. These connections allow neurons to form electrical impulses that control the full functioning of the human body.

The human brain is not fully understood. Scientists believe that in humans, only part of the neurons are involved in the process of life, and therefore, many people do not show their possible abilities.

LEFT HEMISPHERE OF THE BRAIN AND RELATED FEATURES.

According to an article on the Internet,
The LEFT HEMisphere of the brain is responsible for verbal information, it is responsible for language ...

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Good day, dear reader! Today we will discuss the unique creation of nature - the human brain, or rather its right hemisphere, and the exercises that you will find in this article will help to develop and activate its functions. Now I will explain why I wanted to focus on this topic. Firstly, it is responsible for creative abilities, and its development will help to reveal the potential inherent in us. Secondly, the education and upbringing system has long been aimed only at the left hemisphere, which has led to an imbalance in our thinking. Therefore, it is necessary to harmonize the work of the whole brain.

If you are an analyst and a logician of pure water (which means that you have a leading left hemisphere) and feel that you lack creativity and creativity, do not rush to get upset. There are methods and exercises that will help turn on the sleeping right hemisphere. I will describe these methods in detail at the end of the article, but for now, consider the role that the right hemisphere plays.

Functions of the right ...

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Brain - what is each department responsible for?

The brain is a big mystery even for modern biology. Despite all the successes in the development of medicine, in particular, and science in general, we still cannot clearly answer the question: "How do we think?" In addition, understanding the difference between consciousness and the subconscious, clearly identifying their location, and even more so to divide, is not possible.

However, to clarify some aspects for themselves, even people who are distant from medicine and anatomy are worth it. Therefore, in this article we will consider the structure and functionality of the brain.

Brain definition

The brain is not just a human prerogative. Most of the chordate animals (which include homo sapiens) have this organ, and enjoy all its advantages as a reference point for the central nervous system.

How the brain works

The brain is an organ that has been poorly studied due to ...

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What is the left hemisphere of the human brain responsible for?

It is no longer a secret that the left hemisphere of the brain is responsible for the tendency to the mathematical type of thinking. But after all, half the brain cannot perform only one function and determine a favorite subject in school, further specialization and professional direction. If everything else falls on the right half of the brain, it seems to be somehow too busy.

What is unique about the brain?

For a century, scientists have been trying to answer these questions:

What determines the level of intelligence? What are the criteria for determining genius? And in general, is this possible? What can be associated with congenital and genetic mental disorders? Is it possible to form new memories with the help of electrical effects on the brain tissue?

After autopsy became a common practice, the task of physicians and researchers was simplified. Indeed, at their disposal fell ...

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Hello dear readers of my blog! Today we will talk about the left hemisphere of the brain, which is responsible for logical thinking and speech, as well as discuss ways to develop and activate its functions. In a previous article I described his “brother” - who is more responsible for creative abilities. By balancing the work of both parts, you can achieve great results and success in all areas of life, so this is an important thing for almost all people.

The left brain is sometimes called dominant. Firstly, because in 90% of people it is more developed than the right one, and secondly, the role of its mental functions in human activity is difficult to overestimate. Let's consider them in more detail.

Left hemisphere functions

Thinking

Both hemispheres participate in thinking, but they are responsible for different aspects. So the left hemisphere, in contrast to the right, which considers the situation as a whole, processes the information sequentially. It analyzes each individual fact and gives a logical assessment.

Verbal speech

One of the main functions of the left hemisphere is verbal speech. This is our ability to speak, read and write. In people with a damaged left side of the brain, a violation of speech functions and difficulty in perceiving information occurs. People with well-developed left-sided thinking are given easier study of foreign languages.

Score

The recognition of characters and numbers is also responsible for the left hemisphere. With it, we solve mathematical problems and equations, we can remember dates and phone numbers.

Establishing a causal relationship

Thanks to the left hemisphere, people are able to trace cause and effect relationships and draw conclusions. Therefore, the left-sided mindset is also called analytical. People who are dominated by such thinking often go to work as investigators, analysts, etc.

Positive emotions

In recent psychological studies, it was found that the left hemisphere is responsible for positive emotions, and the right for negative ones.

Right side control

The left hemisphere controls the work of the right side of the body, and vice versa. That is, when we write with our right hand or perform some other actions, this means that the signal came from the left side of the brain.

Properties of left-sided thinking

The functions listed above, the left hemisphere performs in all people. But he also has the properties of a narrower specialization, which prevail in people with left-sided thinking. They are characterized by such qualities as determination, logic, practicality, quick learner, organization.

In an article on the right hemisphere, I talked about the fact that it is responsible for creativity. But if people with right-sided thinking, the left hemisphere is poorly developed, it is difficult for them to realize their ideas, due to inconsistency of actions and lack of determination. Therefore, the harmonization of the entire brain is very important.

Left hemisphere activation

There are special exercises that help turn on the left hemisphere. But even if it already dominates you, extra training will not hurt.

Problem solving

Mathematical and logical problems perfectly develop the left hemisphere of the brain. You can start with simple ones, and then move on to more complex ones.

Crossword puzzles are good, especially Sudoku, as they are based on numbers, and logic and analysis are needed to solve them.

Physical exercise

To activate the left hemisphere, you need to use the right side of the body. For example, perform the usual actions with your right hand (write, brush your teeth, stir tea). For right-handed people, this will not be difficult, but left-handed people will have more difficulty.

Also doing regular exercises, pay more attention to the right side of the body. For example, you can jump on the right foot, do tilts to the right side, etc.

Self massage

On the human body there are many points that are responsible for various organs, including the brain. On the basis of the big toes is the point responsible for the cerebellum, and under it are the points of the cerebral hemispheres. By massaging the point under the thumb of the right foot, you activate the left hemisphere.

Fine motor skills

Fine motor skills are very useful for developing the hemispheres. There is a special exercise for this. Lean the tip of the little finger of the right hand to the tip of the thumb of the left hand, and the little finger of the left to the thumb of the right. Scroll the brushes so that the position of the fingers swaps. Then the same thing needs to be done with the ring and index fingers.

But the best tool for this is sorting out the rosary with your right hand. Then you immediately perform 3 functions:

  • activate the left hemisphere
  • meditate
  • massage the points on the fingertips

Pain in the left hemisphere

Many people have a headache localized on the left side of the head. The most common disease that causes such pain is migraine. Specialists identify the following reasons:

  • physical and psychological exhaustion;
  • dehydration of the body;
  • stress;
  • poor circulation of the brain

To relieve the symptoms of migraine, you need to drink plenty of water and give the body a rest. Also meditation can help. Pranayama is especially good. Breathing exercises will help saturate the brain with oxygen and improve blood circulation.

But it must be borne in mind that the pain in the left side of the head can also indicate other diseases that are more serious than migraine, so if you do not know what their cause is, it is better to consult a doctor.

I told you about the functions of the left hemisphere and its activation, but for more efficient brain function it is necessary to develop both of its parts. And which hemisphere is leading for you, you can write in the comments to the article. I will also be glad if you share your knowledge about brain activation exercises. Regards, Ruslan Zvirkun.

The brain is the most important organ that controls the human body. Thanks to its functioning, people are able to see, hear, walk, experience emotions, communicate with each other, feel, analyze, reflect and love. The latter properties are inherent exclusively to man. Before answering the question of what the left hemisphere of the brain is responsible for, we need to recall the anatomy of grade 9: what the brain consists of.

Brain structure

The mass of an organ in an adult is approximately 1400 g. It is located in the cavity of the cranium, covered with shells from above (soft, hard, arachnoid). 3 most significant parts can be distinguished: hemispheres, cerebellum, trunk. The hemispheres of the brain regulate higher nervous activity, there are departments responsible for vision, hearing, speech, and writing. provides balance, in the trunk there are centers of control of respiration and heartbeat.

Interesting! The brain in men completes their growth by the age of 25, and in women by the age of 15!

Between the cerebral hemispheres a longitudinal slit passes, in the depth of which it is located. The latter connects both hemispheres and allows them to coordinate each other's work. From the lessons of anatomy, many remember that each of the hemispheres controls the opposite side of the body. It follows that the left hemisphere is responsible for the right half of the body.

The brain has 4 lobes (we will talk about them below). The lobes are divided by three main grooves: Silviev, Rolandova and parieto-occipital. In addition to furrows, the brain has many convolutions.

It is useful to know what is: forms, opportunities.

Why to a person: connection with the brain, causes of the violation.

The very substance of the brain is divided into gray (cortex) and white. Gray is made up of neurons and lines the brain from above. The cortex is approximately 3 mm thick and the number of neurons is about 18 billion. White matter is the pathways (fibers of the neurocytes) that occupy the entire remaining part of the brain. It is the cortex that controls the whole life of a person from sleep to the manifestation of emotions.

The functions of the left hemisphere of the brain

Large hemispheres are not divorced from other components of the nervous system; they work together with subcortical structures. In addition, in case of damage to one hemisphere, the other can partially assume the functions of the first, which indicates the joint provision of the work of movements, sensitivity, higher nervous activity and sensory organs.

The cortex is divided into zones responsible for certain functions (vision, hearing and others), but they do not function separately. To say something, a person must first think, analyze, calculate. During a conversation, people show emotions (sadness, joy, anxiety, laughter), gesticulate, that is, involve hands, facial muscles. All this is ensured by the coordinated work of several zones of the cortex, subcortical nuclei, cranial and spinal nerves. So, what are the different lobes of the brain responsible for?

Interesting! The brain of people is less than half studied!

Frontal lobe of the left hemisphere of the brain

Responsible for movement, ability to speak, personality, thinking. - This is the part of the brain that is responsible for emotions, behavior, thinking.

Motor cortex

Responsible for the activity of striated muscles of the right half of the body, coordination of precise movements, orientation on the ground. In this department are impulses from the internal organs. When it is damaged, ataxia, paresis of the extremities, disorder of the heart, blood vessels, respiration occur. The picture below shows the topical affiliation of organs and body parts to the precentral gyrus.

Recreation area

It provides facial muscles for pronouncing complex words, phrases. In other words, she is responsible for the formation of speech. In all right-handed people, the speech-motor zone in the left hemisphere occupies a larger area than in the right.

When this zone is destroyed, a person loses the ability to speak, but can scream or sing without words. And also reading to oneself is lost, the formulation of thoughts, but the ability to understand speech does not suffer.

Parietal lobe

There is a zone of sensitivity of the skin, muscles, joints. Impulses from the receptors of the skin of the arms, legs, and trunk to the right go to the left hemisphere. If this zone is damaged, there is a violation of sensitivity in some parts of the skin, the ability to detect objects by touch. The sense of touch is lost, the perception of temperature, pain of the right extremities, as well as the torso on the right, changes.

Temporal lobe

The auditory area is responsible for hearing, vestibular sensitivity. When the zone is destroyed on the left, deafness occurs on the right side, and the ability to hear on the left ear decreases sharply, movements become inaccurate, and staggering occurs when walking (see). Nearby is the auditory center of speech, thanks to which people understand converted speech and hear their own.

The taste and smell area works together with the stomach, intestines, kidneys, bladder, and also the reproductive system.

Occipital lobe - visual area

The optic fibers at the base of the brain also intersect, as do the auditory ones. Thus, pulses from both retinas go to the visual part of the left hemisphere. Therefore, if this zone is damaged, complete blindness does not occur, and only half of the retina on the left suffers.

The occipital part of the brain is also responsible for the visual center of speech, the ability to recognize written letters and words, so people can read the text. The picture shows the parts of the brain that are responsible for behavior, memory, hearing, touch.

The difference between the left hemisphere and the right

As it became clear, in both hemispheres there are speech, visual, auditory and other zones. So what is the difference between the two? Is it only in control over the opposite halves of the body? Of course not!

Features of the left hemisphere:

  1. Logic, analysis, thinking.
  2. Numbers, math, miscalculation.
  3. The phased solution to complex problems.
  4. The ability to understand literally.
  5. Clear facts, arguments, without unnecessary information.
  6. Teaching foreign languages, the ability to control speech.

All about and functions, violations and their consequences.

It is useful to know what it is: a role in the human body, signs of dysfunction.

All about: from anatomy to disease.

What is the right hemisphere responsible for?

  1. Intuition, imagination, emotions.
  2. Perception, musicality, artistry.
  3. Fantasy, bright colors, the ability to dream.
  4. Creating an image by description, addiction to mysticism, riddles.

How to determine the dominant hemisphere?

They say that the right hemisphere is more developed in the right-handed people, and vice versa in left-handed people. This is not entirely true. A person can write with his left hand, but be a born mathematician, skeptic, logician and analyst, completely not get involved in painting, music and at the same time not believe in mysticism. In fact, it is difficult to say which hemisphere dominates, because both of them work when required.

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