Thursday, May 12, 2022

What Are The Four Lobes Of The Brain

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How Do Video Games Affect Behavior

Learn the Four Lobes of the Brain

Although playing violent video games may not necessarily determine violent or aggressive behavior, it may increase precursors to violent behavior. In fact, Dr. Olson points out that violent video games may be related to bullying, which researchers have found to be a risk factor for more serious violent behavior.

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.

Right Brain Left Brain

The cerebrum is divided into two halves: the right and left hemispheres . The left hemisphere controls the right half of the body,and the right hemisphere controls the left half of the body.

The two hemispheres are connected by a thick band of neural fibers known as the corpus callosum,consisting of about 200 million axons. The corpus callosum allows the two hemispheres to communicatewith each other and allows for information being processed on one side of the brain to be shared with theother side.

Figure 2. The cerebrum is divided into left and right hemispheres. The two sides are connected by the nerve fibers corpus callosum.

Hemispheric lateralization is the idea that each hemisphere is responsible for different functions. Each of these functions are localized to either the right or left side.

The left hemisphere is associated with language functions, such as formulating grammar and vocabulary, and containing different language centres .

The right hemisphere is associated with more visuospatial functions such as visualization, depth perception, and spatial navigation. These left and right functions are the case in the majority of people, especially those who are right-handed.

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Lobes Of The Brain And Their Functions

What we know as lobes of the brain consists of a classification by plots of the cerebral cortex that allows mapping the main areas of nerve activity. These are not radically separate areas from each other, but they are relatively easy to distinguish one from the other if we look at the folds and different fissures of the brain.

These plots are the lobes of the brain, and below you can read its most basic aspects, taking into account that each cerebral hemisphere has the same amount, types and distribution of lobes.

What Are The 4 Lobes Of The Brain

Brain: Anatomy, Pictures, Functions, and Conditions

There are 4 lobes on each hemisphere of the brain: the frontal lobe, the parietal lobe, the temporal lobe, and the occipital lobe. Each lobe performs specific functions in the brain.

1. What Is the Frontal Lobe and Its Function?

1.1. What Is the Structure of the Frontal Lobe?

The frontal lobe is situated at the front of the brain and is the largest lobe .

It is delimited from the parietal lobe by the central sulcus and from the temporal lobe by the lateral sulcus .

The frontal lobe is divided into lateral, medial , and orbital surfaces or parts.

Each part or surface is further divided into other parts known as gyri that are also separated by sulci .

Each gyrus has a specific function associated with the function of the frontal lobe.

1.2. What Is the Function of the Frontal Lobe?

The frontal lobe has many functions:

  • Attention
  • Executive Function , planning, selection, sequential organization, and self-monitoring of action.
  • Memory (working memory, learning, and long-term memory
  • Language
  • Self-awareness
  • Audition
  • Voluntary Motor Movements
  • Personality
  • Affect and Mood .
  • Emotional and Social Response

1.3. What Happens If the Frontal Lobe Is Damaged?

Damages of the frontal lobe have been associated with the following disorders and conditions:

  • Attention deficits

2. What Is the Parietal Lobe and Its Function?

2.1. What Is the Structure of the Parietal Lobe?

The parietal lobe is situated between the frontal lobe and the occipital lobe .

2.2. What Is the Function of the Parietal Lobe?

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Do Video Games Help Your Memory

A new study exploring the link between video games and cognition finds that playing video games as a child can improve a persons working memory years later on specific tasks. Recent studies have shown that playing video games could improve learning and may even protect against dementia in older adults.

What Are The 4 Lobes Of The Brain And Their Function

What are the 4 lobes of the brain and their function? Each side of your brain contains four lobes. The frontal lobe is important for cognitive functions and control of voluntary movement or activity. The parietal lobe processes information about temperature, taste, touch and movement, while the occipital lobe is primarily responsible for vision.

What are the 4 parts of the brain and their functions? 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.

What are the 4 functions of the frontal lobe? As a whole, the frontal lobe is responsible for higher cognitive functions such as memory, emotions, impulse control, problem solving, social interaction, and motor function. Damage to the neurons or tissue of the frontal lobe can lead to personality changes, difficulty concentrating or planning, and impulsivity.

What is the function of temporal lobe? The temporal lobes are also believed to play an important role in processing affect/emotions, language, and certain aspects of visual perception. The dominant temporal lobe, which is the left side in most people, is involved in understanding language and learning and remembering verbal information.

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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.

    Position Of Human Brain Lobes

    Four Lobes of the Brain

    The frontal lobe is the psychological nerve center of the brain responsible for forming our personality and affecting out choices. The frontal lobe lies at the front of the central sulcus where it gets information signals from other lobes of the brain.

    The parietal lobe processes sensory information for cognitive purposes and helps collaborate spatial relations so we can understand the world around us. The parietal lobe lives in the middle area of the brain behind the main sulcus, above the occipital lobe.

    The temporal lobe is located on the bottom of the brain listed below the lateral crack. This lobe is also the location of the main auditory cortex, which is important for translating the noises and the language we hear.

    The occipital lobe is located at the back portion of the brain behind the parietal and temporal lobes. The occipital lobe is mostly responsible for processing acoustic details.

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    Cerebral Cortex Lobes Function

    Most of the actual information processing in the brain takes place in the cerebral cortex. The cerebral cortex is located in the division of the brain known as the forebrain. It is divided into four lobes that each have a specific function. For example, there are specific areas involved in movement and sensory processes , and olfaction). Other areas are critical for thinking and reasoning. Although many functions, such as touch perception, are found in both the right and left cerebral hemispheres, some functions are found in only one cerebral hemisphere. For example, in most people, language processing abilities are found in the left hemisphere.

    Brain Structure And Function

    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:

    This image is from:

    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.

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    Can You Recover From Temporal Lobe Damage

    While temporal lobe damage cannot be reversed, functions affected by the damage can be reorganized and relearned by healthy regions of the brain. The brain possesses a dynamic ability to heal itself and allow undamaged portions of the brain to take over control of damaged functions called neuroplasticity.

    What Are The 6 Lobes Of The Brain

    Learn the Four Lobes of the Brain

    The cerebrum is divided by a longitudinal fissure into 2 hemispheres, each containing 6 discrete lobes:

    • Frontal.
    • Insula.
    • Limbic.

    We explained how we can find an almost infinite number of organic structures within each hemisphere that are responsible for carrying out various tasks and functions that affect our actions. In this article you could find an overview of some of the most important sections of our thinking machine: the 5 lobes of the brain.

    If you have any questions or comments let us know!

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    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.

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    Lipid Extraction And Thin

    Cerebra from several rats are dissected and homogenized initially in a small volume of chloroform/methanol , with several brains pooled into one homogenate, and equal fractions are taken for each sample. This is carried out to reduce the variation in myo-inositol incorporation between the individual animals. The lipids are extracted essentially according to the method of Hauser and Eichberg or Schacht . Prior to use, it is essential to wash each test tube three times with chloroform/methanol to remove possible contaminants. The initial neutral extraction removes primarily PI. In addition, during each step of the lipid extraction, the samples are kept under nitrogen using test tubes with Teflon-lined caps. After the acidified chloroform/methanol extraction step, the lipid phases are mixed with 0.2 volume of 1 M HCl, with each phase neutralized immediately with ammonia. The first acidified chloroform/methanol lipid extract is used for all lipid determinations, as this fraction contains most of the polyphosphoinositides.

    D. Gupta, in, 2017

    Ventricles And Cerebrospinal Fluid

    Four Lobes of the Brain Mnemonics (Memorable Neurology Lecture 1)

    Within the brain there are fluid-filled interconnected cavities which are extensions of the spinal cord, called ventricles. These are filled with a substance called cerebrospinal fluid, which is a clear and colourless liquid.

    The ventricles produce cerebrospinal fluid and transport as well as remove this fluid. The ventricles do not have a unique function, but it provides cushioning to the brain and is useful for determining the locations of other brain structures.

    Cerebrospinal fluid circulates the brain and spinal cord and functions to cushion the brain within the skull. If damage occurs to the skull, the cerebrospinal fluid will act as a shock absorber to help protect the brain from injury.

    As well as providing cushioning, the cerebrospinal fluid works to circulate nutrients and chemical filtered from the blood, as well as removing waste products from the brain. cerebrospinal fluid is constantly being absorbed and replenished by the ventricles. If there were a disruption or blockage, this can cause a build up of cerebrospinal fluid and can cause enlarged ventricles.

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    Clinical Relevance: Cerebrovascular Accident

    A cerebrovascular accident is defined clinically as “an abrupt loss of focal brain function lasting more than 24 hours due to either spontaneous haemorrhage into brain substance or inadequate blood supply to part of the brain i.e. ischaemia “.

    Damage to the cerebrum in this matter can give rise to a range of clinical signs. The exact nature of the functional deficit that arises depends on the specific lobe that has been affected:

    • Frontal lobe – a diverse range of presentations, often personality and behavioural changes occur and an inability to solve problems develops.
    • Parietal lobe – typically presents with attention deficits e.g. contralateral hemispatial neglect syndrome: where the patient does not pay attention to the side of the body opposite to the lesion.
    • Temporal lobe – presents with recognition deficits e.g. auditory agnosia: patient cannot recognise basic sounds, prosopagnosia: failure to recognise faces.
    • Occipital lobe – visual field defects: contralateral hemianopia or quadrantanopia with macular sparing.
    • Global lesions – severe cognitive deficits , patients cannot answer simple questions such as their name, today’s date, where they are etc.

    Lobes Of The Brain: Structures Positions And Functions

    Do you know the structures and functions of our brain? In this article, we will discuss the major brain structures and the different functions of the lobes of the brain.

    As the most complex organ in the body, the brain comprises 50 to 100 billion neurons. The cerebral cortex is the most important part of the brain that makes human beings unique. It is the outermost portion of the brain. The cerebral cortex has several bumps and grooves known as gyri and sulci. These bumps and grooves can increase the surface area of the cerebral cortex.

    Medical experts usually divide the cerebral cortex into four lobes : frontal, parietal, temporal, and occipital lobes. They are large areas of the brain with different positions and functions. These functions range from reasoning, language to auditory perception.

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    Position Of Four Lobes Of The Brain

    The cerebral cortex can be divided into four sections: the frontal, occipital, temporal, and parietal lobes. They have different locations and functions.

    The frontal lobe is located in the front part of the brain. It is the largest lobe in healthy human brains. The frontal lobe extends back to a fissure called the central sulcus, which separates the frontal lobe from the parietal lobe.

    The parietal lobe is located in the middle section of the brain above the occipital lobe and behind the frontal lobe.

    Temporal Lobe is located below the parietal and occipital lobes, on the bottom of the brain below the lateral fissure. There are two temporal lobes close to the ears on both sides of the brain.

    The occipital lobe is located above the temporal lobe and beneath the parietal lobe. It is located in the region of the cerebral cortex, sits at the back portion of the brain.

    Where You Reside A Break Down Of The Lobes Of The Brain

    Lob some Lobes in the Ultimate Brain Battle!

    Ever wonder what makes you, wellyou! Your brain is where your mind and consciousness is thought to be located. Everything you are from your thoughts, memories, feelings, and behaviors are sitting in that magnificent brain of yours.

    Before we jump on the topic of the lobes of the brain, well need to first get a grasp on just how much your mind has physical roots in your brain.

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    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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