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What Does Each Lobe Of The Brain Do

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Brain Structure And Function

Brain Lobes and what they do – (Human Brain Series)

The brain has two halves or hemispheres: right and left. The right hemisphere controls the left side of the body, and the left hemisphere controls the right side. In most people, the left hemisphere regulates language and speech, and the right hemisphere controls nonverbal, spatial skills. If the right side of the brain is damaged, movement of the left arm and leg, vision on the left, and/or hearing in the left ear may be affected. Injury to the left side of the brain affects speech and movement on the right side of the body. Each half of the brain is divided into main functional sections, called lobes. There are four lobes in each half of the brain: the Frontal Lobe, Temporal Lobe, Parietal Lobe, and Occipital Lobe. Other important sections of the brain are the Cerebellum and the Brain Stem. Although not usually divided into lobes, the cerebellum and brain stem both have different parts. Each of the brain hemispheres and lobes, cerebellum, and brain stem has specific functions, and they all work together:

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Frontal Lobe: most anterior, right under the forehead the frontal lobe controls intellectual activities, such as the ability to organize, as well as personality, behavior, and emotional control.

Parietal Lobe: near the back and top of the head above the ears the parietal lobe controls the ability to read, write, and understand spatial relationships.

What Are The Basics About The Lobes Of The Brain

Anatomically, it is very easy to recognize the division that exists between the two hemispheres of the brain, because seen from above a remarkable space keeps them separated.

It is the interhemispheric fissure, which is something like a rectilinear crack that separates the upper and more superficial parts of the brain and defines where one cerebral hemisphere begins and where another ends.

However, beyond this obvious sign thanks to which we can get a very superficial idea about the anatomy of the brain, if what we want to examine is the structure of each of these elements, things get complicated.

Each hemisphere is covered by a layer called the cerebral cortex , and this cortex can be divided into different sections according to its different functions and locations.

This classification into differentiated areas within each of the cerebral hemispheres shows us the existence of several lobes of the brain. Lets see how they are.

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.

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How Does The Parietal Lobe Interact With Other Areas Of The Body

It is a myth that any single brain region controls any function. Rather, each region of the brain works in conjunction with the body. Without the environment, the brain could do little or nothing, and the parietal lobe is no exception. Its role in sensory processing means that the parietal lobe depends on a cascade of sensory input from all over the body, including the eyes, hands, tongue, and skin. These disparate regions cannot function without the input of the parietal lobe, which assigns meaning to the sensory input you encounter each day.

The parietal lobe also sends signals to and receives signals from other brain regions, most notably the occipital lobe. The occipital lobe aids the parietal lobe in visual perception and processing, as well as spatial navigation and reasoning.

Though each brain region has a specific set of functions, many of these functions are interchangeable and cross brain regions. Every brain region, for instance, is vital for language processing. Some research has also found that, when there is damage to one region of the brain, nearby regions may compensate, particularly if an injured person receives immediate and comprehensive occupational and physical therapy.

What Is The Gray Matter And White Matter

10 Biggest Myths About the Human Brain

Gray and white matter are two different regions of the central nervous system. In the brain, gray matter refers to the darker, outer portion, while white matter describes the lighter, inner section underneath. In the spinal cord, this order is reversed: The white matter is on the outside, and the gray matter sits within.

Gray matter is primarily composed of neuron somas , and white matter is mostly made of axons wrapped in myelin . The different composition of neuron parts is why the two appear as separate shades on certain scans.

Each region serves a different role. Gray matter is primarily responsible for processing and interpreting information, while white matter transmits that information to other parts of the nervous system.

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The brain is the vital organ of the central nervous system. It is a complex organ consist of billions of interconnected neurons and glia. The brain has two sides and separated into unique lobes. Each lobe has a specific set of functions.

Although the brain is a complex organ a hardworking one with a hundred billion neurons, it surprisingly weighs only three pounds. It makes up around 2% of the human weight and only takes up about 20% of the bodys total energy.

The brain, being an intricate organ, performs a lot of functions. The two sides of the brain communicate with one another to perform all vital bodily processes. Both the left and the right side of the brain look very much alike but they too share some differences, especially in processing information.

Lack of integration between the different components of the brain could result in some forms of impairment.

The human brain has the ability to recognize itself. It has the ability to learn and adapt to change. Each side of the brain has a distinct function, which affects the persons ability to learn and adapt.

What Conditions Affect The Parietal Lobe

The parietal lobe can be damaged by:

  • Traumatic injury
  • Alzheimers disease

Diseases associated with parietal lobe dysfunction include:

Gerstmann’s syndrome: Lateral damage to the parietal lobe can result in Gerstmann’s syndrome, with reduced blood flow affecting the functions of the lobe. A person affected with this syndrome experiences difficulty recognizing movements and the left and right sides of something, such as their environment, and may be unable to recognize their own fingers. People with Gerstmanns syndrome may face problems with reading and writing, as well as solving mathematical equations.

  • Parietal lobe epilepsy: A rare type of epilepsy, parietal lobe epilepsy causes sensory disturbances, such as heat, numbness, hallucinations, weakness, dizziness, and distortion of space along with seizures.
  • Amorphosynthesis: This condition causes a loss of perception on one side of the body, typically a sign of a lesion on the left side of the parietal lobe. Sensory impairment may be experienced.
  • Balint syndrome: Balint syndrome is a rare disorder that is caused by damage to both sides of the parietal lobe. The condition is typically characterized by:
  • Optic ataxia
  • Optic apraxia
  • Simultanagnosia

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Get To Know The Lobes Of The Brain An Easy Guide

Containing an average of 86 billion neurons, the brain is one of the most complex and inexplicable organs in the human body. In this article, youll be learning about the major lobes of the brain and their respective functions.

Fun fact: Its not true that we use 10% of our brain. No study has ever claimed that. We actually lack the full knowledge of the brains capabilities and it keeps us from understanding its true potential.

Weve yet to uncover a deeper understanding of the brain, and in the future, we might be able to access some hidden brain functions.

So, lets uncover a bit of what we know today and learn about the lobes of the brain and their functions.

Anatomy Of The Brain And Spine

Lobes of the Brain: Cerebrum Anatomy and Function [Cerebral Cortex]

Learn more about the anatomy and the functions of the brain and spine

The brain and spine are vital to keep the body alive and functioning. Everything we do depends on the messages that are sent from the brain, along the spinal cord and on to the rest of the body.

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Functions Of The Frontal Lobe

The frontal lobe plays a key role in future planning, including self-management and decision-making.

People with frontal lobe damage often struggle with gathering information, remembering previous experiences, and making decisions based on this input.

Some of the many other functions the frontal lobe plays in daily functions include:

One of the most infamous frontal lobe injuries happened to railroad worker Phineas Gage.

Gage survived after a railroad spike impaled a portion of his frontal lobe. Though Gage survived, he lost his eye and much of his personality.

Gages personality dramatically changed, and the once mild-mannered worker struggled to stick to even simple plans. He became aggressive in speech and demeanor and had little impulse control.

Much of what we know about the frontal lobe comes from case reports on Gage. Those have been called into question since, however. Little is known for sure about Gages personality before his accident, and many stories about him may be exaggerated or false.

The case demonstrates a larger point about the brain, which is that our understanding of it is constantly evolving. Hence, it is not possible to accurately predict the outcome of any given frontal lobe injury, and similar injuries may develop quite differently in each person.

In general, however, damage to the frontal lobe due to a blow to the head, a stroke, growths, and diseases, can cause the following symptoms:

  • speech problems

The Four Cerebral Cortex Lobes Of The Brain

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

    The cerebral cortex is the layer of the brain often referred to as gray matter. The cortex is gray because nerves in this area lack the insulation that makes most other parts of the brain appear to be white. The cortex covers the outer portion of the cerebrum and cerebellum.

    The cerebral cortex is divided into four lobes. Each of these lobes is found in both the right and left hemispheres of the brain. The cortex encompasses about two-thirds of the brain mass and lies over and around most of the structures of the brain. It is the most highly developed part of the human brain and is responsible for thinking, perceiving, producing and understanding language. The cerebral cortex is also the most recent structure in the history of brain evolution.

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    The 4 Major Lobes Of The Brain And Their Functions

    The cerebral cortex is the outermost layer of the brain. It is divided lengthways into two cerebral hemispheres and is connected by a band of nerve fibers that allow both sides to communicate with one another.

    Each of the hemispheres is divided into four parts: frontal lobe, parietal lobe, temporal lobe, and occipital lobe.

    Although most of our brain functions rely on multiple regions communicating in conjunction with one another, each lobe of the brain is thought to carry out the bulk of a certain set of functions.

    Detailed Information About The Functions And Characteristics Of The Right Brain

    Parts of the Brain and What They Do
    • 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.

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    Cerebral Lobes: Characteristics And Functions

    Written and verified bythe psychologist.

    15 November, 2021

    Everything we are is in our brain. This amazing and immensely complex organ is a reflection of our successful evolutionary history as a species. The human brain is categorized into four different cerebral lobes. Our conscience resides in these lobes. We also create language, store our memory, and regulate emotions and many other processes in these cerebral lobes.

    Famous Portuguese neurologist Antonio Damasio explains in his book Looking for Espinoza that the brain is more than a simple bundle of neurons. In fact, comparing this organ to a computer may still not cut it. The brain and each of its structures are a direct result of our interaction with our environment.

    The eye must concentrate, grasp the subject, and the brain will find a means to express it.

    -Paul Cézanne-

    We are what we see, feel, experience, and the way we react to stimuli and circumstances. The brain takes shape with every experience. The cerebral lobes are the ones in charge of the processes in function of the characteristics. Identifying each one of the processes will allow us to have a better and more complete understanding of the human brain.

    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.

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    Lobes Of The Brain And What They Control

    Each brain hemisphere has four sections, called lobes: frontal, parietal, temporal and occipital. Each lobe controls specific functions.

    • Frontal lobe. The largest lobe of the brain, located in the front of the head, the frontal lobe is involved in personality characteristics, decision-making and movement. Recognition of smell usually involves parts of the frontal lobe. The frontal lobe contains Brocas area, which is associated with speech ability.
    • Parietal lobe. The middle part of the brain, the parietal lobe helps a person identify objects and understand spatial relationships . The parietal lobe is also involved in interpreting pain and touch in the body. The parietal lobe houses Wernickes area, which helps the brain understand spoken language.
    • Occipital lobe. The occipital lobe is the back part of the brain that is involved with vision.
    • Temporal lobe. The sides of the brain, temporal lobes are involved in short-term memory, speech, musical rhythm and some degree of smell recognition.

    Astounding Facts About The Lobes Of The Brain And Their Functions

    2-Minute Neuroscience: Lobes and Landmarks of the Brain Surface (Lateral View)

    Our brain is made up of the cerebrum, cerebellum, brain stem, and the limbic system. Read about the four lobes of the brain and their function, which determine the way we think, react and associate with our environment. Of all the parts of the brain, the cerebrum or cortex is the largest part, which is further sub-divided into four lobes frontal lobe, parietal lobe, occipital lobe, and temporal lobe.

    Our brain is made up of the cerebrum, cerebellum, brain stem, and the limbic system. Read about the four lobes of the brain and their function, which determine the way we think, react and associate with our environment. Of all the parts of the brain, the cerebrum or cortex is the largest part, which is further sub-divided into four lobes frontal lobe, parietal lobe, occipital lobe, and temporal lobe.

    The brain is the most complex organ of the human body. With over an estimated 50 100 billion neurons in it, the brain ticks and works in ways that are still a mystery to many neurologists. The scientific study of the brain and the nervous system is called neurobiology or neuroscience.

    The brain is a part of the central nervous system, along with the spinal cord and the peripheral nervous system , which is made of nerves. Nervous system plays the role of controlling every aspect of our life from simple memorization to critical thinking, from lifting a pin, to voluntary smooth functioning of all the other organs in the body.

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    Cerebral Lobes And Their Functions

    When we think of cerebral lobes, we tend to make the mistake of imagining separate structures that are independent of one another. This is why its important to understand that there are no internal barriers between them. The four large areas that make up the brain always work in harmony and share information constantly.

    On the other hand, although each cerebral lobe has its individual characteristics, this doesnt mean that each one controls a specific task almost exclusively. Many activities and processes overlap in different cerebral regions.

    This means that one area couldnt function without the involvement of another. This is why, in the case of brain damage to a specific area, its functions can be compensated by another area. This may or may not affect the efficiency of the processes.

    Moreover, even investigators disagree on where one lobe begins and the other ends. However, what they do agree on is that there are two clear hemispheres: the right and left.

    This is why we can identify each of the four cerebral lobes that make up the brain in both hemispheres. And so, neurologists tend to talk about the right frontal lobe and the left frontal lobe and so on. Lets see the characteristics of each cerebral lobe.

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