Friday, May 13, 2022

What Connects The Left And Right Hemispheres Of The Brain

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Detailed Information About The Functions And Characteristics Of The Right Brain

Brain Gym to Integrate the Left and Right Hemispheres
  • It allows young children to grasp and understand the concept of more versus less.
  • The right hemisphere of the brain is responsible for some of the cognitive functions such as attention, processing of visual shapes and patterns, emotions, verbal ambiguity, and implied meanings.
  • Children below 3 years old are predominantly governed by the right brain.

Corpus Callosum And Brain Function

    • B.A., Biology, Emory University
    • A.S., Nursing, Chattahoochee Technical College

    The corpus callosum is a thick band of nerve fibers that divides the cerebral cortex lobes into left and right hemispheres. It connects the left and right sides of the brain, allowing for communication between both hemispheres. The corpus callosum transfers motor, sensory, and cognitive information between the brain hemispheres.

    Left Brain And Right Brain Theory

    A person can either be right-brained or left-brained. It means that one side of the brain is dominant. The left-brained dominant people are methodical and analytical in nature. Those right-brained dominant are creative and artistic.

    The left brain and right brain theory was created in the 1960s by a psychologist named Roger W. Sperry.

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    What’s The Difference Between The Right Brain And Left Brain

    You may have heard people describe themselves as “right-brained” or “left-brained,” but what does that mean?

    Are you right-brained or left-brained?

    It’s a popular question, hovering at the edges of sound neuroscience. The left brain is supposed to be more creative and artistic, the right brain more organized and logical. Indeed, Google “right-brain dominance” or “left-brain dominance,” and you’ll find endless blog posts on the subject. You’ll also find quizzes that purport to tell readers which sort of person they are.

    But the real science says there’s no such thing as right- or left-brain dominance.

    In a sweeping two-year study, published in 2013 in the journal PLOS One, researchers looked at the brains of more than 1,000 people and found no evidence for significant differences in brain-side dominance among individuals.

    The Left Brain Right Brain Myth

    Cerebral hemisphere

    While there is a left brain and a right brain, their use in popular culture has created a widespread misunderstanding. Itâs common to believe that the left brain is for logical thinking and the right brain is for creativity. People categorize themselves as being left or right brain-oriented depending on their interests and skills.

    Scientists have been able to look closer at the brain and see that itâs more complicated than âleft = logical.â It wasnât until the 1960s when split-brain surgeries, a treatment of epilepsy, gave scientists the chance to investigate each half of the brain separately.

    Scientists deduced that the left brain was better at language and rhythm, while the right brain was better at emotions and melody. However, this doesnât mean that the two halves are entirely separate.

    The myth of the totally opposite hemispheres persists for a variety of reasons.

    • It satisfies the need for order.
    • Like astrological signs, it gives people a defined personality type.
    • People naturally see creativity and logic as opposites.
    • People find the idea of having untapped creative power appealing.

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    What Is Brain Lateralization

    Information that enters the left hemisphere travel across the corpus callosum going to the right side of the brain and vice versa. The two hemispheres of the brain function interdependently.

    Each of them has a role to play in the processing of information although the other is more dominant in certain functions. The process is called brain lateralization. The degree of brain lateralization is not the same in everyone.

    What Is The Corpus Callosum And What Does It Do

    To understand the role of the corpus callosum, it is first important to remember that the brain is divided into two cerebral hemispheres . The hemispheres are made distinct from one another by a long groove called the medial longitudinal fissure. On a large scale, the two hemispheres are nearly identical, but on a microscopic and functional level there are some differences.

    When information like sensory data is sent to the brain it is typically received first in one hemisphere. For example, when you type on your keyboard, information about the feel of the keys is sent up from your right hand to the primary somatosensory cortex on the left side of your brain. That information, however, must then be shared with the right side of your brain as well. That’s where the corpus callosum comes into play. It is a large bundle of fibers that connects the left and right hemispheres, and it carries information received in one hemisphere over to the other.

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    Questions This Article Will Answer

  • What are the characteristics of the right brain and left brain?
  • What are the brains anatomy and function?
  • What were the split-brain experiments?
  • What are some activities performed by each hemisphere?
  • How did the Mayo Clinic map the brain?
  • What careers are good for right and left-brained people?
  • The chief function of the body is to carry the brain around.

    Thomas A. Edison

    Are The Two Hemispheres Of The Brain Identical

    BRAIN HEMISPHERES: Left and Right Brain?

    You might not have a more dominant half, but your brain really is split into two hemispheres, left and right. And the left and right hemispheres are not the same. They are highly similar and redundant, though. Most processes that youd find on the left side also take place on the right, and vice-versa.

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    Communicating With Stroke Survivors Who Have Aphasia

    While it may be difficult to communicate, people with aphasia have several options when interacting with others.

    Some of these options include:

    Conversely, for those people without aphasia, communicating with stroke survivors who have aphasia can be made easier with some of the following methods:

    • Using pictures or props to make conversation
    • Drawing or writing
    • Speaking simply and slowly

    Agenesis Of The Corpus Callosum

    Agenesis of the corpus callosum is a condition in which an individual is born with a partial corpus callosum or no corpus callosum at all. The corpus callosum typically develops between 12 and 20 weeks and continues to experience structural changes even into adulthood. AgCC can be caused by a number of factors including chromosome mutations, prenatal infections, exposure of the fetus to certain toxins or medications, and abnormal brain development due to cysts. Individuals with AgCC may experience cognitive developmental delays, and they may have difficulty understanding language and social cues. Other potential problems include hearing deficits, distorted head or facial features, spasms, and seizures.

    How are people born without a corpus callosum able to function? How are both hemispheres of their brain able to communicate?Researchers have discovered that the resting-state brain activity in both those with healthy brains and those with AgCC look essentially the same. This indicates that the brain compensates for the missing corpus callosum by rewiring itself and establishing new nerve connections between the brain hemispheres. The actual process involved in establishing this communication is still unknown.

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    Growth Spurt In The Brain

    One important difference between the two sets of patients did emerge in the comparison. People with autism spectrum disorder showed autism-like behaviors in infancy and early childhood, but the same type of behaviors did not seem to emerge in individuals with AgCC until later in childhood or the teen years.

    Around ages 9 through 12, a normally formed corpus callosum goes through a developmental growth spurt which contributes to rapid advances in social skills and abstract thinking during those years, Paul says. Because they dont have a corpus callosum, teens with AgCC become more socially awkward at the age when social skills are most important.

    AgCC can now be diagnosed before a baby is born, using high-resolution ultrasound imaging during pregnancy, opening the door for future research, Adolphs says.

    If we can identify people with AgCC already before birth, we should be in a much better position to provide interventions like social skills training before problems arise, Paul says.

    Is It Better To Be Left

    Yin Yang Qigong, Brain Balancing

    After centuries of studying the brain, neuroscientists have come up with an answer. Theres no difference if youre more left-brained or right-brained.

    Its best to meet in the middle and exercise both the left and right sides of your brain.

    People who use both their right and left the brain to solve problems are able to successfully analyze situations taking into account emotions, as well as logical reasoning.

    Those who use their left and right brain actively have a broad range of interests. For example, someone who is a left brain thinker like a scientist or mathematician will enjoy painting and playing the guitar on the weekends.

    We can say the same for someone who is a right-brain thinker like a dancer or artist. As one of their hobbies, they might learn foreign languages and solve math problems.

    In sum, its essential for both the left and right brain hemispheres to work together. They both need to find balance because one cant function without the other.

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    The Concept Of The Left And Right Brain

    Imagine that a right-handed person is trying to write with his/her left hand: As the left hand is not usually used for writing it is very difficult for the person to be able to write properly. While holding a pen with our right hand, we can actively use a ruler, tape measure, etc. with our left hand.

    When we want to do the opposite, we realize that we cannot use the ruler with our right hand as well as we can with our left hand. In other words, we can see that our hands and arms actually complete each other, and also each of them has its unique powerful features. The concept of the right brain and the left brain is quite similar.

    Surely it is impossible not to use the brain for a healthy person, but it is possible to use the right or left side of the brain more than the other side. The ideal scenario is to use both sides in a balance because the right brain and the left brain complete each other just like in the example above. The more used side of the brain becomes more functional and the less used side becomes lazy.

    You are probably wondering which side of your brain you are using more effectively. Right now, because you are reading, you are using both your left and right brain together. So, which side of your brain is more powerful in terms of using your mental skills in your everyday life? You can find the answer to this question with our simple left brain-right brain test!


    Can Frontal Lobe Damage Repair Itself

    Its possible for the brain to rewire itself to compensate for an injury to the frontal lobe and allow undamaged areas to take over a function! Therefore, even if youve suffered damage to the frontal lobe, this doesnt automatically mean you have permanently lost an ability controlled by that area.

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    Can Stress Cause Heightened Sense Of Smell

    Anxious people have a heightened sense of smell when it comes to sniffing out a threat, according to a new study. Anxious people have a heightened sense of smell when it comes to sniffing out a threat, according to a new study by Elizabeth Krusemark and Wen Li from the University of Wisconsin-Madison in the US.

    Is The Analytical

    Brain Lobes and Left and Right Hemispheres of the Brain

    Steven Gans, MD is board-certified in psychiatry and is an active supervisor, teacher, and mentor at Massachusetts General Hospital.

    Have you ever heard people say that they tend to be more of a right-brain or left-brain thinker? From books to television programs, you’ve probably heard the phrase mentioned numerous times. Or perhaps, you’ve even taken an online test to determine which type best describes you.

    You’ve probably also spotted at least a few infographics on Pinterest or Facebook claiming to reveal your dominant brain hemisphere. And maybe you have come across a few articles or books suggesting you can unleash the hidden creativity of right brain thinking or the deductive logic of left-brain thinking.

    People described as left-brain thinkers are told that they have strong math and logic skills. Those who are described as right-brain thinkers, on the other hand, are told that their talents are more on the creative side of things.

    Given the popularity of the idea of “right-brained” and “left-brained” thinkers, it might surprise you learn that this idea is just one of many myths about the brain.

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    What Did We Find

    What were our results? We found that older adults who get more brain exercise see things faster on the left side of the screen, compared with the right side of the screen. The more brain exercise an older adult has gotten during his or her lifetime, the stronger the right hemisphere becomes.

    This was an exciting result, because it suggests that brain exercise does strengthen the right hemisphere, and perhaps this is why brain exercise protects against Alzheimers disease.

    What should we do next? This is only a small piece of the jigsaw puzzle. Now we know that the right hemisphere is stronger in older adults who get more brain exercise. The next question is which parts of the right hemisphere are most important? For this question, it would be very helpful to use an imaging device called an MRI machine to take pictures of the brain before, during, and after brain exercise. These pictures would give us more detailed knowledge about exactly what changes in the brain with brain exercise.

    How Do You Activate The Right Hemisphere Of The Brain

    Here are three right brain exercises you may want to try:

  • Exercise #1: Connect the Dots. Identify something on the left side of your field of vision, and something on the right, and move your eyes back and forth between the two.
  • Exercise #2: Breathe Through Your Left Nostril.
  • Exercise #3: Tickle Your Funny Bone.
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    Detailed Information About The Functions And Characteristics Of The Left Brain

    • It has the ability to understand the sum of any situation/look at things from.
    • It involves the movement of large muscles such as walking.
    • It plays an important role in maintaining balance.
    • It is responsible for non-verbal communications.
    • It can sense smell, taste, and sound.
    • It is responsible for emotional functions.
    • It regulates avoidance behavior.
    • It controls the immune system.
    • It is in charge of involuntary body functions like digestion, the beating of the heart, and breathing.
    • It is stimulated by new experiences.
    • It affects the persons ability to pay attention to details.
    • Fine motor skills.
    • Convert sounds to language and translates meaning.

    The Cerebellums Left And Right Hemispheres

    The brain

    The cerebellum also has two hemispheres: the left cerebellar hemisphere and the right cerebellar hemisphere. Just as the longitudinal fissure divides the cerebrums hemispheres, the vermis separates the cerebellums hemispheres.

    The Database Center for Life Science/Wikimedia Commons

    Cerebellar hemispheres seen from front and back / The Database Center for Life Science/Wikimedia Commons

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    First Look: Brains Missing Key Left

    The right and left halves of the brain are connected by a bridge known as the corpus callosum. When people have their corpus callosum surgically removed, it can lead to disconnection syndrome, where one half of the brain might not know what the other half is doing. However, people who are born without the corpus callosum typically do not suffer from such disconnection syndrome. Now scientists find the brains of people born without a corpus callosum can form alternative bridges in the brain to link the hemispheres. The findings are detailed in the Proceedings of the National Academy of Sciences.

    The surgical removal of the corpus callosum, a procedure known as a corpus callosotomy, is performed as a last resort to stop epileptic seizures, keeping them from spreading from one hemisphere of the brain to the other. However, the disconnection syndrome that results underscores how the different halves of the brain typically become specialized, and that decoupling them can have dramatic consequences.

    On the other hand, people born without the corpus callosum a condition known as callosal dysgenesis lack disconnection syndrome. Some people with callosal dysgenesis may even be mentally normal, with regular lives and jobs, although others may be severely handicapped, with mental retardation, epilepsy and other symptoms.

    Bumps And Grooves Of The Brain

    In humans, the lobes of the brain are divided by a number of bumps and grooves. These are known as gyri and sulci . The folding of the brain, and the resulting gyri and sulci, increases its surface area and enables more cerebral cortex matter to fit inside the skull.

    Image: DJ / CC BY-SA 2.0 Albert Kok / Public Domain

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    How Do I Know Im Making The Right Choice

    • Youre going to be at least a little scared.
    • The loud voices will start sounding.
    • Youre going to feel uncomfortable.
    • Youre going to question yourself.
    • Youre going to feel your confidence grow.
    • Youre going to make new and wonderful friends.
    • Youll find yourself making more and more decisions more quickly.

    The Left Hemisphere Of The Brain

    Brain Lateralization: The Split Brain

    The left side of the brain controls the right side of the body. If the left side of the brain is dominant, the person is logical and more academically inclined.

    You most likely excel in academics, especially math and science. The left hemisphere of the brain is also called the digital brain. It is the one responsible for the following:

    • Verbal

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    The Cerebellums Inner And Outer Layers

    Like the cerebrum, the cerebellum has two layers: one inner and one outer. The outer layer is called the cerebellar cortex. Like the cerebral cortex, it is full of gray matter. Functions such as movement, motor learning, balance and posture happen here.

    Underneath the cortex lies the cerebellums white matter. Called arbor vitae for its appearance, the cerebellums white matter contains cerebellar nuclei. These neurons are vital because they relay information between the cerebral cortex and the peripheral nervous system to assist in learning and cognitive functions, motor control, balance and coordination.

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