What is the left side of the brain responsible for? What is the right hemisphere of the brain responsible for?

The brain is the main organ of the central nervous system, which consists of a huge number of nerve cells and their processes, interconnected. This organ almost completely occupies the cavity of the cerebral part of the skull. It provides protection to the brain from external damage. As a person develops and matures, the brain gradually takes the shape of the skull.

Due to the activity of the brain, a person sees, hears, walks, works, experiences emotions, is able to communicate with other people, analyze, and think.

Structure

In adult men and women, the total mass of the organ is about 1.3-1.5 kg. The male and female brains differ little in weight (in women it is slightly lighter), while in newborns the weight of the organ is no more than 350-400 g, and in a 12-year-old child - ~800-1000 g. The brain is located in the cranium and is closed by three shells. It has a specific structure. The most significant parts of the organ are: the medulla oblongata and the posterior (which includes the pons and the cerebellum, located behind the pons), the forebrain, the diencephalon, and the midbrain.

The right and left hemispheres of the brain are responsible for regulating higher nervous activity, because they contain departments that are responsible for writing, speech, hearing, and vision. Thanks to the cerebellum, balance is ensured, and the trunk contains developed centers that control the respiratory and cardiovascular systems.

In men, the brain completely stops growing in size around the age of 25, while in women this process is completed by the age of 15.

Between the two halves of the organ there is a longitudinal fissure, the basis of which is the corpus callosum, connecting the hemispheres, ensuring coordination of their work with each other. Since school times, we have known from anatomy that the halves are responsible for the work of opposite sides of the body. For example, the right half is responsible for the functioning of the left side of the body.

Functions of the left hemisphere

The hemispheres of the brain are interconnected with the rest of the central nervous system, therefore they function together with subcortical structures.

If one of the hemispheres is damaged, then the other may take over part of its functions. This indicates the associated support for the functioning of movements, higher nervous activity, sensitivity, and sensory organs.

The cortex has several zones that are responsible for performing specific functions. These zones only work together. For example, if a person wants to say something, then he thinks, analyzes, calculates, and then only speaks. In the process of communication, people express emotions: they are sad, happy, worried, laughing, etc., they gesture, using their facial muscles and hands. Such work is ensured by the general functioning of:

several zones of the cortex;
subcortical nuclei;
spinal and cranial nerves.

At the moment, less than 50% of the human brain has been studied by world science, but the process continues continuously.

Frontal lobe of the left hemisphere

If we talk about what the left hemisphere is responsible for, then first we should talk about the frontal lobe, which ensures a person’s ability to speak and think. This is one of the most important parts of the brain. Thanks to it, emotions appear and manifest, behavior and thought processes are controlled.

Speech motor area

Allows you to ensure the normal functioning of the facial muscles, which is necessary for pronouncing complex phrases and words. To put it differently, thanks to the speech motor area, speech is formed in a person as a whole. If he is right-handed, then in the left hemisphere the speech motor zone takes up much more space than in the right, and if he is left-handed, everything is exactly the opposite.

If the zone is destroyed or severely damaged, the ability to speak is automatically lost. In this case, a person will be able to sing and scream without words. Also, if damaged, the ability to read to oneself and formulate one’s thoughts is lost. Such damage does not affect the function of understanding the speech of other people.

There is a common myth that a person uses only 5-10% of his brain capacity. This is not true, because cells that are not used simply die.

Motor area

The left and right hemispheres contain the motor cortex, which is necessary to ensure the activity of the striated muscles. In the left hemisphere, the activity of the right side of the body, coordination of precise movements, and orientation on the ground are controlled. The internal organs send their impulses to this zone.

If the motor cortex is damaged, the following problems will occur:

disturbances in the functioning of the cardiovascular system and respiratory organs;
paresis of limbs;
ataxia.

Parietal lobe

This is where the sensitivity zone of muscles, joints, and skin is located. The left hemisphere receives impulses from receptors on the right side of the body.

If this area is damaged, then, in most cases, a person will experience sensory disturbances in some areas of the body, and he will lose the ability to determine things by touch. There is also a loss of touch, sensitivity to ambient temperature, and no pain is felt in the right side of the body.

Temporal lobe

Its main functions are vestibular sensitivity and hearing. If the zone is damaged, the right ear will stop hearing, and the left ear will lose the ability to hear normally. The person will move less accurately and will begin to stagger when walking. Not far from the temporal lobe is the auditory speech center, through which we can understand spoken speech and hear our own.

Occipital lobe

At the base of the brain, visual and auditory fibers intersect. Therefore, the visual zone of the left hemisphere receives impulses from the retina of the right and left eyes. Moreover, if the area is damaged, the person will not experience complete blindness - disturbances are observed only in the left eye.

The back of the head is also necessary to ensure the normal functioning of the visual speech center - with its help we recognize written words and letters and read.

Hemisphere specializations

The left and right hemispheres of the brain are responsible for certain functions.

The main specialization of the left hemisphere is logical thinking, so it used to be widely believed that the left side is dominant. But the dominance of the left hemisphere is observed only when performing certain functions:

Language abilities, ensuring speech control, the ability to read and write, memory (memorizing facts, names, dates, etc., writing them), learning foreign languages.
Understanding words (the left hemisphere can only understand the meaning of what is said literally).
Analytical thinking (recognition of numbers and mathematical symbols, logic, analysis of facts).
Sequential information processing (the left hemisphere processes the received information in stages). The left side considers all the available details - it does not see the big picture, unlike the right side, and therefore is not able to put together the information received.
Mathematical abilities (the left side recognizes symbols, numbers, a logical and analytical approach is used to solve mathematical problems, which are also provided by this hemisphere).
Control of the right side of the body (if you raise your right leg, this will indicate that the corresponding command came from the left hemisphere).

The hemispheres of the human brain interact with each other, so during mental activity the central nervous system uses them together. The functioning of the two hemispheres is synchronized. The central nervous system activates them and connects the results obtained. But it is still customary to clearly separate their mental functions.

It is a common belief that the larger the brain, the smarter and more brilliant a person is, but this is a misconception. Albert Einstein had a relatively small brain, weighing about 1.2 kg. The size of the organ does not in any way affect the quality of mental activity.

There is a precise division of certain functions. The right hemisphere is primarily responsible for intuition, so it cannot dominate. Its main functions also include:

Processing of non-verbal information (symbols, images).
Spatial orientation. The hemisphere allows a person to navigate in space and correctly perceive his location. Due to the work of this side of the brain, a person is able to competently find the way to the right place, taking into account various factors, and create mosaic puzzle images.
Metaphors. Thanks to the work of the hemisphere, people can correctly perceive metaphors, solve riddles, and recognize the results of another person’s imagination. If the left hemisphere allows us to literally understand and analyze the meaning of what has been written, then the right hemisphere takes a creative approach. For example, if we hear the following metaphor: “Simple as a felt boot,” then due to the work of the hemisphere we will understand what they wanted to convey to us.

Mystic. Religion, mystical phenomena, superstitions and much more from these areas - the right hemisphere of our brain is responsible for all this.
Musicality. Creativity is also considered to be the activity of the right hemisphere. Talents in the field of music, the ability to perceive musical works, and much more related to music and other creativity are provided by the work of this side of the brain. It is interesting to note that not the right, but the left hemisphere will be responsible for receiving musical education.
Imagination. Thanks to the right side of the brain, we can dream, imagine, fantasize. The hemisphere completely controls these processes, allows us to come up with all sorts of stories, develops thoughts related to coming up with new solutions and paths, makes predictions, connects memories into a single whole, etc. For example, it is the right side that asks questions like “What if?” and many others related to the creative thought process.
Emotions. If we talk about what our right hemisphere is responsible for, then the list can also include emotions that, in fact, are not a product of the activity of this hemisphere. At the same time, they are connected with the right side much more than with the left, which scientists have long been able to prove.

I am glad to welcome you, dear readers of my blog! As promised in the previous article, today we will look at what the right hemisphere of the brain is responsible for. I also want to offer an integrated approach to develop both halves. Then you will be successful in any activity, and also learn how to masterfully control your hands, and perform various functions at the same time.

Functions

The right hemisphere is responsible for our creative part, that is, the ability to fantasize, process information that comes in the form of images and symbols.

Helps to recognize the non-verbal manifestations of a person, which, as you know, are very important in the communication process, since body signals are true and truthful. It is thanks to this part of the brain that we can consider a situation from different angles, give an objective assessment and, in general, capture many nuances at the same time, managing to process and systematize them.

A person who has more developed logic does not understand jokes and takes everything literally. On the contrary, a creative person in this regard is very plastic, thinking using metaphors. She is able to write poetry, music, draw and understand people well, because she is intuitive and sensitive. He knows the terrain well, again thanks to the ability to take an unconventional approach to solving problems, putting puzzles together into one picture in his imagination.

Of course, if you raise your left arm or leg up, this means that the opposite hemisphere is involved in the work, since the left side of your body is subordinate to it. It is generally accepted that the orientation of a person with a dominant right half is directed towards the environment, that is, outward and is called extraversion.

He is more sociable, subject to emotions and momentary impulses. It does not act according to a clear plan, but based on the situation, adapting to changing conditions. To find out which half is more developed for you, you can experiment by completing the tasks set out about the left hemisphere of the brain.

Exercises

So, in order to improve your creative side, you should visit exhibitions, museums, art galleries, and, of course, try yourself in writing poems, stories, and practice drawing, even if it’s abstract and understandable only to you. Dancing helps coordinate movements, which also has a beneficial effect on development.
Start practicing visualization techniques that will help you achieve your goals faster and also help you develop your ability to fantasize and daydream. It’s easy to do, just study it first, where I talk in detail about all the nuances of the practice.
Meditation is not easy for people who have well-developed logical thinking, but it is very effective for them. And not only to expand the boundaries of consciousness, the ability to move away from a clear structure and think three-dimensionally, but also to improve the quality of life and health. Start with a very simple meditation focused on breathing and concentration. You will find detailed instructions.
Massage your left ear to help activate the right side of your brain. Suitable in cases where it is necessary to take a creative approach to solving any issue and rely on your intuition.
Creativity is not limited to drawing and poetry, read jokes and watch humorous programs, laughter will not only activate the brain, but also improve well-being, preventing the onset of depression. Besides, are you aware that people who use humor and sarcasm in their speech have a high level of intelligence?
When listening to music, try to listen to your feelings and breathing. Let images, associations and pictures circle freely in your head, do not control them, trying to get rid of them. Just watch them, like an unwitting spectator of a performance organized by your consciousness and subconscious.

An integrated approach to the development of both halves of the brain

As I already said, it is important to coordinate the work of both halves in order to expand their capabilities and functions for which they are responsible. Then you will be provided with a creative approach to solving even the most complex problems, and the speed and efficiency of information processing will also increase.

Sit comfortably with a straight back, choose a point in front of you, you will have to concentrate on it. After about a minute, try using your peripheral vision, without taking your eyes off the selected point, to see what is to your left, and then to your right.
With one hand, stroke your stomach, and with the other, perform tapping movements on your head. Slowly at first to adjust, building up the pace over time.
Also, the development of both hemispheres will provide you with the following task: place the finger of one hand on the tip of your nose, and with the other hand grab the ear opposite to it. For example, the right hand should take the left ear. As soon as you take it, clap your hands and do the same, changing the position of your hands. That is, the fingers of a completely different hand touch the nose, exactly the same pattern with the ears.
Stretch your arms in front of you, draw a square in the air with one of them, for example, and a circle with the other. When you feel that you have made progress, come up with new figures to master.

Conclusion

Do the exercises, and over time you will notice how easier it has become to make decisions and do your usual work, communicate with people, and so on. You can periodically check your intelligence level to see how much it increases and changes. You can learn more about this from the article

Our brain is a mystery, but on the pages of this blog, I will collect information about all the possible ways to develop it. Subscribe to updates so as not to miss the release of new articles. Bye bye.

FUNCTIONAL ASYMMETRY OF THE HEMISPHERES

BRAIN.

The brain consists of three large parts: the cerebrum, the cerebellum and the brainstem. In terms of size and functional significance, the large brain plays a leading role. Therefore, in a simplified version it can be called the brain. The brain consists of the left and right hemispheres. Morphologically or in form they are very similar to each other. However, they cannot be called paired organs, since functionally they are not unambiguous. is responsible for the person, and the right is responsible for his emotional characteristics. Considering the fact that it is in the sphere of their functional activity that a person’s personal characteristics, his behavior, habits, emotions, intellectual abilities and, ultimately, his fate are located, studying the brain is an urgent need. In addition, this is an extremely interesting activity that brings us more and more surprises. So we found that for the majority of our people, the right hemisphere is more active than the left. Since the right hemisphere is responsible for the formation of a person’s negative emotional status, we can assume that we are all more emotional than rational and, moreover, negatively emotional. To put it simply, we are very angry, aggressive and vindictive. And this, first of all, hits us ourselves, it greatly harms our family and social relationships, undermines our health and shortens our lives by 10 - 15 years. How to fix this situation?

Functions of the cerebral hemispheres

Functional ambiguity of the cerebral hemispheres was identified based on data on speech disorders. This discovery has its roots in the second half of the 19th century. Based on the results of post-mortem autopsies of patients who lost the ability to speak, the French clinician P. Broka established a connection between this disease and lesions of nerve cells in the frontal lobe of the left hemisphere of the brain. Somewhat later, S. Wemecxe described the loss of the ability of oral speech communication, the so-called sensory aphasia, in a patient with damage to the temporal gyrus of the same hemisphere. Further, it was found that the left hemisphere of the brain dominates not only in speech, but also in the processes of reading, writing, counting, and the ability to think logically. The concept of dominance of the left hemisphere of the brain was formulated. The right hemisphere seemed to be subordinate and without specific properties.

However, facts have accumulated in the clinic that clarify the importance of the right hemisphere in the formation of a person’s emotional status. In 1881, B. Luys, studying patients with focal brain lesions and complete loss of voluntary movements of one half of the body (hemiplegia), showed that the right hemisphere of the brain plays a dominant role in the sphere of emotions. Somewhat later, the dominance of the right hemisphere in the expression of emotions was determined by N Sackkeim. It turned out that the right hemisphere is responsible for emotions and, to a greater extent, for negative emotions. When the function of the right hemisphere predominates, a person is prone to negativistic perception of the environment. He sees, first of all, the negative aspects of events, remembers them better and remembers them longer. Thus, with the dominant activity of the right hemisphere over the left, a negative emotional personality profile is formed, the severity of which depends on the degree of this activity. Further research in this area showed a deeper connection in terms of the functional relationships of the left and right hemispheres, their mutually complementary specialization. As it turned out, the functional asymmetry of the cerebral hemispheres is ambiguous, complexly mosaic, and has age-related characteristics. However, it can be argued quite reasonably and with a fairly high degree of reliability that the left hemisphere is, to a greater extent, verbally logical, responsible for the intellectual level of the individual, while the right hemisphere is, to a greater extent, spatial = sensual. The high level of activity of one or another hemisphere determines the functional ambiguity of the cerebral hemispheres formed during the evolution of the central nervous system (CNS).

Evolution of the central nervous system.

In the development of the nervous system of animals, it is customary to distinguish three successive stages, or three nodal and tubular. The first multicellular organisms, such as the freshwater polyp Hydra, had a diffuse nervous system.

Nerve cells are located along the entire surface of the outer layer of the hydra. They have a star-shaped shape, because they are equipped with long processes. The processes of closely located nerves are in contact with each other, and some of them are in contact with skin-muscle cells. The working state of a nerve cell is excitation. If you touch the hydra with a thin needle, then the excitement from irritation of one of the nerve cells is transmitted along the processes to other nerve cells, and from them to the skin-muscle cells. The muscle fibers contract, and the hydra shrinks into a small lump.

Further development of the nervous system leads to the fact that the nerve cells scattered throughout the body of our previously described hydra are gradually grouped into nerve chains and nerve ganglia - clusters of nerve cells. The first representatives in whom we observe a nodular nervous system are flatworms and their typical representative is the white planaria. This 1-2cm long worm, which lives in ponds and streams, has a white body with a translucent intestine filled with dark food. One of the features of the planarian nervous system is bilateral symmetry. Her right side looks like her left. All planarian organs are located in pairs on both sides of an imaginary plane running along the animal’s body. Bilateral symmetry is characteristic of most multicellular animals, including humans. Planaria has two nerve trunks on its sides. In the anterior part, both nerve trunks end in large nerve ganglia connected to each other. In annelids they form into large subpharyngeal and suprapharyngeal nodes. These two large nodes and nerve trunks are the predecessors of the modern central nervous system of vertebrates and humans.

The larger subpharyngeal node provides tactile functions, and the suprapharyngeal node provides digestive functions. Further, in the process of evolution, the suprapharyngeal node moves to the left, and the subpharyngeal node moves to the right and up. Thus, the right and left hemispheres of the brain are formed. Rotational movements of the suprapharyngeal and subpharyngeal nodes connected to the nerve trunks lead to the crossing of the nerve tracts. Two nerve trunks plunge deep into the muscle tissue and, connecting with each other, form the primary spinal cord. The functional and morphological ambiguity of the suprapharyngeal and subpharyngeal nodes was the cause of the functional ambiguity of the left and right hemispheres of the human brain.

functional typology

Functional asymmetry of the cerebral hemispheres makes it possible to classify people according to the degree of relative activity of the left or right hemispheres of the brain. Psychologists have always tried to divide people into psychophysiological types.

The first attempt at such a classification of people goes back to the distant past. In the 5th century BC. Ancient Greek physician, reformer of ancient medicine Hippocrates created the doctrine according to which the human body consists of 4 elements: air, water, fire, and earth. It was assumed that the compounds of these elements create 4 substances: blood, mucus, black bile, yellow bile, which determine 4 types of people. Somewhat later, 130-200 BC, a follower of Hippocrates, the Greek physician Claudius Gallen proposed to distinguish 4 main psychological types based on the emotional state of a person. This is a sanguine person - prone to joy, a phlegmatic person - to calmness, a melancholic person - to melancholy and a choleric person - an angry type. This classification has endured for two millennia. A physiological connection has been identified between some diseases and so a melancholic person is prone to certain diseases of the cardiovascular system, vegetative-vascular dystonia, depression, and schizoid psychopathy. A choleric person, for example, is prone to dysfunction of the gastrointestinal tract, genitourinary system, spasms, convulsions, mania, hysterical or epileptoid psychopathy. Knowledge of the psychotype is of great importance in medicine for clarifying diagnosis and treatment, as well as in correcting social relationships.

In the twentieth century, the study of psychotypes received a new direction associated with psychoanalysis developed by S. Freud. The most significant in this regard is the typology of K. Jung, one of the outstanding students of S. Freud. He bases his system on 4 classes of people: thinking, feeling, sensing and intuitive. Each of these people of one class or another can manifest themselves as both extroverted and introverted, forming a total of 8 psychotypes. According to C. Jung's classification, an introvert tends to leave all experiences within himself, he is easily vulnerable and defenseless, susceptible to any idea and it is difficult for him to reconsider his views. In this regard, it is much easier for extroverts. They are sociable, easily navigate in any environment, society, and are able to predict and rebuild their relationships. Everything comes surprisingly easily to them, but they don’t notice their troubles and simply let them slip through their fingers.

I.P. Pavlov based the classification he developed on the main processes in the activity of the central nervous system. He identified 4 types of higher nervous activity based on strength, balance, excitation and inhibition of nervous processes.

All of the above classifications did not take into account the fact of functional ambiguity of the left and right hemispheres of the brain. As it turned out, the dominance of one hemisphere or another has a serious influence on a person’s mental activity and behavior. It was proposed to distinguish two psychotypes: left-hemisphere and right-hemisphere, where the characteristic of the main properties of each type is the functional orientation of the dominant cerebral hemisphere. The problem lies in the scientifically based determination of the dominance of one hemisphere or another. A.P. Anuashvili proposes to identify the dominance of the right or left hemisphere of the brain by determining the difference in the amplitudes of oscillatory processes in one hemisphere or another and the degree of consistency of these oscillatory processes with each other. Determining these parameters requires direct measurements using sensors that measure electromagnetic emissions from the brain. In addition to the fact that this technique requires the use of expensive specialized equipment that is not available for widespread use, the electromagnetic characteristics of brain radiation are characterized by a high level of instability. They are easily changed and depend on many additional factors. Obviously, this significantly affects the objectivity of research results and requires the accumulation of a large amount of statistical material.

Synthesized photographs.

We have proposed a method for indirectly determining the predominant cerebral hemisphere by comparing the surface area of the left and right half of the face. The surface of the face is formed by its facial muscles and the more developed it is, the larger the surface area of the face. The development of facial muscles directly depends on the functional activity of the cortical complexes of neurons in the left and right hemispheres of the brain. Since the facial muscles of the left and right faces are innervated contralaterally, that is, by opposite hemispheres, the surface area of the right face depends on the activity of the left hemisphere, and the surface area of the left face accordingly depends on the activity of the right hemisphere. With stable dominance or higher activity, for example, of the right hemisphere, the facial muscles of the left half of the face will be developed much stronger than the facial muscles of the right half of the face, and therefore the surface area of the left half of the face will be greater than the surface area of the right half of the face. Note that the dominance of one hemisphere or a higher degree of excitation of its neurons, as a rule, causes a relative inhibition of nervous processes in the opposite hemisphere. This further enhances the effect described above.

To identify the dominant hemisphere, the surface areas of synthesized photographs of the left and right faces were compared. A synthesized photograph is a photographic image composed of one half of a face and its mirror image. The face in the photograph is divided along the axial anatomical line into two halves, and two synthesized photographs are made from each half. The left half of the face and its mirror image are taken and the left face is combined. In the same way, a combined photograph of the right face is taken. This was carried out using a computer program. Next, the surface areas of the left and right faces of the synthesized photographs were measured. The same scale of photographs and their frontal images allow for comparative mathematical processing. The area of the desired half of the face was limited on one side by the central axial anatomical line, and on the other by the external contours of the face.

To determine the dominant hemisphere and the degree of its dominance, the concept of facial asymmetry coefficient was introduced, which was determined by the ratio of the surface areas of the left and right faces. If the ratio of the area of the left face to the area of the right is greater than one, that is, the area of the left face is larger than the right, then this means that the right hemisphere is more active than the left. If this ratio is less than one, then the left hemisphere is more active. If this coefficient is equal to one, then the face is absolutely symmetrical and both hemispheres have the same activity. Thus, we can easily identify which hemisphere of the subject is active and determine his individual asymmetry coefficient. The research was conducted among NSMA students.

The results were somewhat unexpected. We saw that, in quantitative terms, the number of right-hemisphere and left-hemisphere types should be approximately the same. However, in percentage terms, the number of right-hemisphere people was 87.7%, the number of left-hemisphere people was 12.3%. The number of symmetrically functioning hemispheres is zero. One hemisphere is always slightly more active than the opposite. The average asymmetry coefficient in the group with an active left hemisphere was 0.944, and in the group with an active right hemisphere 1.087. Additional studies have been conducted among different age and social groups. The results were identical. We are all very emotional and, as a rule, we act first, and then we think, we commit actions, and then we repent.

Functional typology.

The left hemisphere processes information, sequentially encoding and comparing its details, that is, it goes from analysis to synthesis, where conclusions are drawn after careful processing of the data. Only after this the left hemisphere defines goals and outlines ways to implement them. This approach guarantees a high level of success and efficiency. Analyzing the situation happening here and now, the left hemisphere bets on the future. Such a person, in the process of his present activity, predicts the expected future and sees himself as an active participant in this situation. He shows exceptional ingenuity and cold prudence in difficult situations. This allows you to exclude making erroneous decisions and avoid undesirable consequences. Among these people we see scientists, engineers, and managers. Taking into account all the circumstances and features of the functioning of the left hemisphere, the way it perceives the surrounding reality and expresses its mental essence, a person whose left hemisphere dominates is defined as an intellectual logical type.

The right hemisphere plays a leading role in the emotional sphere of human mental activity. Considering the fact that the left hemisphere, in addition to everything else, takes on the entire spectrum of positive emotions, it is natural that we find ourselves not only emotional, but also negatively emotional. The right hemisphere provides a holistic and imaginative perception of the world, but this perception always has a negative connotation. Bad things are always remembered better than good things and tend to accumulate. Working in the present, the right hemisphere relies exclusively on the past, looks for unfavorable circumstances there and relies on them when making decisions. This leads to unwanted and unforeseen consequences. And that's putting it mildly. The right hemisphere operates in analogue mode with a very narrow range of analysis. It compares objects in terms of good or bad, evil or good, right or wrong, and is completely incapable of compromise. People whose right hemisphere dominates are of the sensual type, they are overly emotional and, being in the grip of emotions, are not able to think. However, emotionally they are very expressive, they perceive the world around them on a sensory level, are capable of compassion, charity, and are ready for self-sacrifice in the fight for justice. Leaders emerge from this environment. From here we come to painters, sculptors, poets, singers, actors, ultimately, romantics who adorn our society, giving it attractiveness and direction. This is good. But there is one thing that dominates us. This is an irritation.

The right-hemisphere type initially carries irritation and the basis for this is the constant activity of the right hemisphere, its negative emotional orientation. This is a smoldering volcano that lives in our souls. Any unexpected obstacle causes uncontrollable anger in us. This happens as a result of generalization of arousal, when negative emotions take over the entire brain. Here, any external impulse only increases excitement. If such a person is not stopped, he can commit any crime, including murder.

Undercurrent irritation keeps us in a state of, albeit mild, but constant depression. Any, even minor, unfavorable situation can plunge us into real depression. Uncertainty, anxious and painful state, depressed, unbearable mental pain, feeling of worthlessness. This terrible list can be continued indefinitely. All that is required is to say that the consequences of such a state do not bode well. They are the cause of a number of serious diseases. These are, first of all, stomach ulcers, bronchial asthma, diabetes mellitus and cardiovascular diseases. In severe forms of depression, nervous disorders and suicidal syndrome occur, which often ends in tragedy. In all these indicators, we are almost leaders. This is our national peculiarity. In general, all this reduces life expectancy to 10 - 15 years, depending on the degree of asymmetry of the hemispheres. How to correct this situation?

Psychological correction.

Studies of various types of people pose the problem of eliminating negative personality characteristics and changing it in a positive direction. The task is to create a harmonious, highly spiritual, creative personality, helping her to reveal her positive qualities and promote the strengthening of physical health. Now that the reasons for our many misfortunes are clear, let’s consider methods of combating the evil fate that does not allow us to live calmly and happily.

Manifestations of the functional state of the cerebral hemisphere on a person’s face make it possible to obtain, through visual processing of synthesized photographs of the left and right faces, a correction of the person’s psychological state. Looking at synthesized photographs composed of the left and right halves of the face, the subject sees two different people. What happens is that the brain seeks to eliminate, eliminating the asymmetry between the left and right halves of the face. Synthesized photographs show the brain naked reality, the result of its unsuccessful activity and encourage it to correct the situation. The brain has a tremendous capacity for self-healing and self-improvement. When the goals are finally determined, the consciousness begins to self-correct.

Visualization or viewing of synthesized photographs should be carried out before bed, in a calm environment. You should view the photos one by one, for a few minutes each. Further, work to correct functional imbalances in the functioning of the brain occurs at a subconscious level. The course of this psychotherapy is 7-10 days and is repeated after 1 month. 2 - 3 courses are enough. As a result of such psychotherapy, a person’s behavior changes, the geometric proportions and emotional expression of the face change in a positive direction. Immunity and self-esteem increase, illnesses go away, blood pressure normalizes.

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, think and love. The latter properties are unique to humans. Before answering the question of what the left hemisphere of the brain is responsible for, you need to remember 9th grade anatomy: what the brain consists of.

Brain structure

The mass of the organ in an adult is approximately 1400 g. It is located in the cavity of the cranium, covered on top with membranes (soft, hard, arachnoid). We can distinguish 3 most significant parts: hemispheres, cerebellum, trunk. The hemispheres of the brain regulate higher nervous activity; they contain the departments responsible for vision, hearing, speech, and writing. ensures balance; the trunk contains centers for controlling breathing and heartbeat.

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

Between the large hemispheres there is a longitudinal fissure, in the depths of which it is located. The latter connects both hemispheres and allows them to coordinate each other’s work. From anatomy lessons, many remember that each hemisphere controls the opposite side of the body. It follows from this 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 separated by three main grooves: Sylvian, Rolandov and parieto-occipital. In addition to the grooves, the brain has many convolutions.

It is useful to know what it is: forms, possibilities.

Why does a person need it: connection with parts of the brain, causes of the disorder.

The brain matter itself is divided into gray (cortex) and white. The gray is made up of neurons and lines the top of the brain. The thickness of the cortex is approximately 3 mm, and the number of neurons is about 18 billion. White matter is the pathways (neurocyte fibers) that occupy the rest of the brain. It is the cortex that controls a person’s entire life from sleep to the manifestation of emotions.

Functions of the left hemisphere of the brain

Large hemispheres are not separated from other components of the nervous system; they work together with subcortical structures. In addition, if one hemisphere is damaged, the other can partially take over the functions of the first, which indicates the joint support of movements, sensitivity, higher nervous activity and sensory organs.

The cortex is divided into zones responsible for certain functions (vision, hearing, etc.), 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), gesture, that is, use their hands and 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! Less than half of the human brain has been studied!

Frontal lobe of the left hemisphere of the brain

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

Motor cortex

Responsible for the activity of the striated muscles of the right half of the body, coordination of precise movements, and orientation on the ground. This department receives impulses from internal organs. When it is damaged, ataxia, paresis of the limbs, and disturbances in the functioning of the heart, blood vessels, and breathing occur. The picture below shows the topical affiliation of organs and body parts to the precentral gyrus.

Speech motor area

Ensures the work of facial muscles to pronounce complex words and phrases. In other words, it is responsible for the formation of speech. In all right-handed people, the speech motor area in the left hemisphere occupies a larger area than in the right.

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

Parietal lobe

This is where the sensitivity zone of the skin, muscles, and joints is located. Impulses from the skin receptors of the arms, legs, and torso on the right go to the left hemisphere. If this area is damaged, sensitivity in some parts of the skin is impaired, and the ability to identify objects by touch occurs. The sense of touch is lost, the perception of temperature and pain in the right extremities, as well as the torso on the right, changes.

Temporal lobe

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

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

Occipital lobe – visual area

The visual fibers at the base of the brain also cross, as do the auditory fibers. Thus, impulses from both retinas of the eyes go to the visual part of the left hemisphere. Therefore, if this zone is damaged, complete blindness does not occur, but only half of the retina on the left is affected.

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

The difference between the left hemisphere and the right

As has already become clear, both hemispheres have speech, visual, auditory and other zones. So what is the difference between them? Is it only in control over the opposite halves of the body? Of course not!

Features of the left hemisphere:

Logic, analysis, thinking.
Numbers, mathematics, calculation.
Step-by-step solutions to complex problems.
The ability to understand literally.
Clear facts, arguments, without unnecessary information.
Teaching foreign languages, the ability to control speech.

All about functions, disorders and their consequences.

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

Everything about: from anatomy to diseases.

What is the right hemisphere of the brain responsible for?

Intuition, imagination, emotions.
Perception, musicality, artistry.
Fantasy, bright colors, the ability to dream.
Creating an image from a description, a passion for mysticism and riddles.

How to determine the dominant hemisphere?

They say that right-handers have a more developed left hemisphere, and left-handers have the opposite. This is not entirely true. A person can write with his left hand, but be a born mathematician, skeptic, logician and analyst, not at all interested in painting, music, and at the same time not believe in mysticism. In fact, it is difficult to say which hemisphere is dominant, since both of them work when required.

The human brain is the main part of the central nervous system and 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 generate electrical impulses that control the full functioning of the human body.

The human brain is not fully understood. Scientists believe that only a part of a person’s neurons are used in the process of life, and therefore many people do not demonstrate their possible abilities.

Left hemisphere of the brain and related functions

The left hemisphere of the brain is responsible for verbal information; it is responsible for a person’s language abilities, controls speech, the ability to write and read. Thanks to the work of the left hemisphere, a person is able to remember various facts, events, dates, names, their sequence and how they will look in writing. The left hemisphere is responsible for human analytical thinking; thanks to this hemisphere, logic and analysis of facts are developed, and manipulations with numbers and mathematical formulas are carried out. In addition, the left hemisphere of the brain is responsible for the sequence of information processing (step-by-step processing).

Thanks to the left hemisphere, all information received by a person is processed, classified, analyzed, the left hemisphere establishes cause-and-effect relationships and formulates conclusions.

The right hemisphere of the brain and its functions

The right hemisphere of the brain is responsible for processing so-called non-verbal information, that is, for processing information expressed in images and symbols, rather than words.

The right hemisphere is responsible for imagination; with its help, a person is able to fantasize, dream, and also compose, learn poetry and prose. This is also where a person’s abilities for initiative and art (music, drawing, etc.) are located. The right hemisphere is responsible for parallel processing of information, that is, like a computer, it allows a person to simultaneously analyze several different streams of information, make decisions and solve problems, simultaneously considering the problem as a whole and from different angles.

Thanks to the right hemisphere of the brain, we make intuitive connections between images, understand a variety of metaphors, and perceive humor. The right hemisphere allows a person to recognize complex images that cannot be broken down into elementary components, for example, the process of recognizing people's faces and the emotions that these faces display.

Synchronized work of both hemispheres

The intuitive work of the right hemisphere of the brain is based on facts that have been analyzed by the left hemisphere. It should be noted that the work of both hemispheres of the brain is equally important for a person. With the help of the left hemisphere, the world is simplified and analyzed, and thanks to the right hemisphere, it is perceived as it really is.

If there were no right, “creative” hemisphere of the brain, people would turn into emotionless, calculating machines that could only adapt the world to their life.

It should be noted that the right hemisphere controls the left half of the human body, and the left hemisphere controls the right half of the body. That is why it is believed that a person whose left half of the body is better developed (“left-handed”) has better developed creative abilities. By training the corresponding part of the body, we train the hemisphere of the brain that is responsible for these actions.

In the majority of people, one of the hemispheres is dominant: the right or the left. When a child is born, he evenly uses the capabilities that were initially inherent in him in different hemispheres. However, in the process of development, growth and learning, one of the hemispheres begins to develop more actively. Thus, in schools with a mathematical bias, little time is devoted to creativity, and in art and music schools, children hardly develop logical thinking.

However, nothing prevents you from training both hemispheres of your brain yourself. Thus, Leonardo da Vinci, who trained regularly, was fluent in both his right hand and his left. He was not only a creative person, but also an analyst who had well-developed logical thinking, and in completely different areas of activity.