Monday, May 23, 2022

What Is The Brain Responsible For

Don't Miss

Where Do Emotions Come From

How to learn major parts of the brain quickly

The limbic system is a group of interconnected structures located deep within the brain. Its the part of the brain thats responsible for behavioral and emotional responses.

Scientists havent reached an agreement about the full list of structures that make up the limbic system, but the following structures are generally accepted as part of the group:

  • Hypothalamus. In addition to controlling emotional responses, the hypothalamus is also involved in sexual responses, hormone release, and regulating body temperature.
  • Hippocampus. The hippocampus helps preserve and retrieve memories. It also plays a role in how you understand the spatial dimensions of your environment.
  • Amygdala. The amygdala helps coordinate responses to things in your environment, especially those that trigger an emotional response. This structure plays an important role in fear and anger.
  • Limbic cortex. This part contains two structures, the cingulate gyrus and the parahippocampal gyrus. Together, they impact mood, motivation, and judgement.

Substructures Of The Limbic System

Hippocampus

There are two hippocampi, located in each hemisphere of the brain. They are seahorse-shaped and are structures mainly associated as being the memory centres of our brains.

Episodic memories are formed in the hippocampus and then filed away into long-term storage throughout other parts of the cerebral cortex.

The hippocampus always plays a role in spatial navigation and has also been associated with learning and emotions .

The hippocampus is also known as a site where neurogenesis occurs â this means that new nerve cells are made here from adult stem cells.

Due to the hippocampusâs involvement in memory, damage to this area can lead to severe memory impairments.

Damage can also be detrimental to spatial memory, for instance, remembering directions to locations that should be familiar to the individual.

Amygdala

The amygdala is an almond-shaped structure, located right next to the hippocampus. The main function of the amygdala is in emotional responses, including feelings of happiness, fear, anger, and anxiety.

This area is also key for the formation of new memories. The amygdala interacts with the hippocampus by attaching emotional content to memories.

It has a role in how memorable memories can be â memories that have strong emotional components tend to stick, rather than those with little emotional content.âFear learningâ is also an element of the amygdala.

Cingulate Gyrus

The hypothalamusâ most basic function is in homeostasis .

Where Did The Myth Come From

The concept of left-brained and right-brained individuals appears to stem from research in the 1960s on split-brain patients, whose corpus callosum had been separated. The research revealed that patients responded in different ways to stimuli such as images, depending on which brain hemisphere perceived them.

Recommended Reading: Why Do People Get Brain Freeze

The Old Brain: Wired For Survival

The brain stem is the oldest and innermost region of the brain. Its designed to control the most basic functions of life, including breathing, attention, and motor responses . The brain stem begins where the spinal cord enters the skull and forms the medulla, the area of the brain stem that controls heart rate and breathing. In many cases the medulla alone is sufficient to maintain life animals that have the remainder of their brains above the medulla severed are still able to eat, breathe, and even move. The spherical shape above the medulla is the pons, a structure in the brain stem that helps control the movements of the body, playing a particularly important role in balance and walking.

Running through the medulla and the pons is a long, narrow network of neurons known as the reticular formation. The job of the reticular formation is to filter out some of the stimuli that are coming into the brain from the spinal cord and to relay the remainder of the signals to other areas of the brain. The reticular formation also plays important roles in walking, eating, sexual activity, and sleeping. When electrical stimulation is applied to the reticular formation of an animal, it immediately becomes fully awake, and when the reticular formation is severed from the higher brain regions, the animal falls into a deep coma.

Brain Areas And Their Functions

Did you know the left part of the brain is responsible for ...

The brain is divided into areas which are each responsible for different areas of functioning.

The brain can be divided into three basic units: the forebrain, the midbrain and the hindbrain.

These areas are: Occipital lobe, Temporal lobe, Parietal lobe, Frontal lobe.Cerebral cortex, Cerebellum, Hypothalamus,Thalamus,Pituitary gland, Pineal gland, Amygdala, Hippocampas and the Mid- brain.

The image below indicates where the areas are.

Occipital lobe: This is found in the back of the brain. The area is involved with the brain’s ability to recognise objects. It is responsible for our vision.

Temporal lobe: The temporal lobes are found on either side of the brain and just above the ears. The temporal lobes are responsible for hearing, memory, meaning, and language. They also play a role in emotion and learning. The temporal lobes are concerned with interpreting and processing auditory stimuli.

Parietal lobe: The parietal lobes are found behind the frontal lobes, above the temporal lobes, and at the top back of the brain. They are connected with the processing of nerve impulses related to the senses, such as touch, pain, taste, pressure, and temperature. They also have language functions.

Frontal lobe:It is concerned with emotions, reasoning, planning, movement, and parts of speech. It is also involved in purposeful acts such as creativity, judgment, and problem solving, and planning

Read more:

Also Check: Prevagen Regular Strength 30 Capsules

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

    What Does This Discovery Mean For The Future

    The main idea around which future research on this extraordinary discovery will revolve seems to focus on the use of electrical stimulation as part of intervention in anxiety disorders, depression and even chronic pain.

    Another line of research could be opened with the use of electrical stimulation in this area of happiness of the brain as it helps better and more pleasant experiences during neurosurgery in which patients are forced to stay awake.

    In any case, we must wait for the technologies to improve since this type of treatment would require invasive surgery right now, since the electrodes should be placed directly on the brain, which implies an operation with serious risks.

    Be that as it may, it is a discovery of tremendous importance that brings us one step closer to the real knowledge of our brain and that is drawn on the horizon as a hopeful path for all interventions that have to do with the state of mind, be it replacing or complementing them.

    Read Also: Does Brain Freeze Cause Damage

    The National Institute Of Neurological Disorders And Stroke

    Since its creation by Congress in 1950, the NINDS has grown to become the leading supporter of neurological research in the United States. Most research funded by the NINDS is conducted by scientists in public and private institutions such as universities, medical schools, and hospitals. Government scientists also conduct a wide array of neurological research in the more than 20 laboratories and branches of the NINDS itself. This research ranges from studies on the structure and function of single brain cells to tests of new diagnostic tools and treatments for those with neurological disorders.

    For information on other neurological disorders or research programs funded by the National Institute of Neurological Disorders and Stroke, contact the Institute’s Brain Resources and Information Network at:

    Office of Communications and Public LiaisonNational Institute of Neurological Disorders and StrokeNational Institutes of HealthBethesda, MD 20892

    NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient’s medical history.

    Laughter On The Brain

    Brain 101 | National Geographic

    The physiological study of laughter has its own name âgelotology. And we know that certain parts of the brain are responsible for certain human functions. For example, emotional responses are the function of the brainâs largest region, the frontal lobe. But researchers have learned that the production of laughter is involved with various regions of the brain. While the relationship between laughter and the brain is not fully understood, researchers are making some progress.

    For example, Derks traced the pattern of brainwave activity in subjects responding to humorous material. Subjects were hooked up to an electroencephalograph and their brain activity was measured when they laughed. In each case, the brain produced a regular electrical pattern. Within four-tenths of a second of exposure to something potentially funny, an electrical wave moved through the cerebral cortex, the largest part of the brain. If the wave took a negative charge, laughter resulted. If it maintained a positive charge, no response was given, researchers said.

    During the experiment, researchers observed the following specific activities:

    This is different from what happens with emotional responses. Emotional responses appear to be confined to specific areas of the brain, while laughter seems to be produced via a circuit that runs through many regions of the brain.

    Read on to learn more about how the brain and laughter are connected.

    Don’t Miss: Brain Freeze Facts

    Things That Can Go Wrong With The Brain

    Because the brain controls just about everything, when something goes wrong with it, its often serious and can affect many different parts of the body. Inherited diseases, brain disorders associated with mental illness, and head injuries can all affect the way the brain works and upset the daily activities of the rest of the body.

    Problems that can affect the brain include:

    Brain tumors. A brain tumor is an abnormal tissue growth in the brain. A tumor in the brain may grow slowly and produce few symptoms until it becomes large, or it can grow and spread rapidly, causing severe and quickly worsening symptoms. Brain tumors in children can be benign or malignant. Benign tumors usually grow in one place and may be curable through surgery if theyre located in a place where they can be removed without damaging the normal tissue near the tumor. A malignant tumor is cancerous and more likely to grow rapidly and spread.

    Epilepsy. This condition is made up of a wide variety of seizure disorders. Partial seizures involve specific areas of the brain, and symptoms vary depending on the location of the seizure activity. Other seizures, called generalized seizures, involve a larger portion of the brain and usually cause uncontrolled movements of the entire body and loss of consciousness when they occur. Although the specific cause is unknown in many cases, epilepsy can be related to brain injury, tumors, or infections. The tendency to develop epilepsy may be inherited in families.

    What Improves Your Iq

    Here are some activities you can do to improve various areas of your intelligence, from reasoning and planning to problem-solving and more.

  • Memory activities.
  • Below are 15 games that rely on your strategic, critical-thinking, and imaginative abilities.

    • Lumosity Brain-Training App, free to download.
    • Chinese Mahjong set with compact wooden case, $72.99.
    • Hasbro Scrabble Crossword Game, $16.99.
    • Sudoku: 400+ Sudoku Puzzles , $6.29.

    Don’t Miss: What Does The Hippocampus Do In The Brain

    Other Key Parts Of The Brain

    Ventricular System The brain is not a solid organ. Instead, there are fluid-filled cavities within the brain called ventricles. The ventricles provide nourishment to the brain. The ventricular system produces and processes cerebrospinal fluid, a clear, watery substance flowing around the brain to cushion and protect it.

    Cranial NervesThe brain also contains 12 pairs of cranial nerves. Each is responsible for specific body functions.

    • Olfactory nerve: Sense of smell
    • Optic nerve: Vision

    What Are The Parts Of The Brain

    Which Part of the Brain Deals With Thinking?

    The various parts of the brain work together to conduct everyday thought processes and necessary functions such as breathing. Essentially, the brain is made up of the forebrain, the midbrain and the hindbrain. Each part consists of different structures that allow them to conduct different tasks and handle varying responsibilities.

    Made up of the cerebrum and the structures within the brain referred to as the inner brain, the forebrain is the largest part of the brain. Connected by bundles of nerves, the cerebrum is made up of two hemispheres, referred to as the right hemisphere and left hemisphere. Activities controlled by the left hemisphere include movements by the right side of the body and the ability to form thoughts. The right side of the brain controls movements on the left side of the body and allows you to think abstractly.

    Within each hemisphere of the cerebrum are lobes with specialized functions. Frontal lobes handle planning and scheduling tasks. Parietal lobes allow you to experience taste, touch and temperature. Responsible for processing images and storing them in memory are the occipital lobes. Finally, your temporal lobes allow you to process music and form memories related to musical activities.

    Recommended Reading: Explain Why Brain Freeze Is A Type Of Referred Pain

    Read Also: Brain Test 187 I Hate Math

    How Can I Make My Brain Happy

    6 Simple Ways to Train Your Brain for Happiness

    Thinking positive.

    Memorize a list of happy words.

    Use associations.

    Spend a few minutes each day writing about something that made you happy.

    Celebrate your successes, even the small ones.

    In this post we answered the question What part of the brain is responsible for happiness? We explained how happiness is produced in the brain and what are the substances in charge.

    If you have any questions or comments please let us know!

    The Biggest Part: The Cerebrum

    The biggest part of the brain is the cerebrum. The cerebrum is the thinking part of the brain and it controls your voluntary muscles the ones that move when you want them to. So you need your cerebrum to dance or kick a soccer ball.

    You need your cerebrum to solve math problems, figure out a video game, and draw a picture. Your memory lives in the cerebrum both short-term memory and long-term memory . The cerebrum also helps you reason, like when you figure out that you’d better do your homework now because your mom is taking you to a movie later.

    The cerebrum has two halves, with one on either side of the head. Scientists think that the right half helps you think about abstract things like music, colors, and shapes. The left half is said to be more analytical, helping you with math, logic, and speech. Scientists do know for sure that the right half of the cerebrum controls the left side of your body, and the left half controls the right side.

    You May Like: Does Prevagen Help With Memory Loss

    Injury In The Left Hemisphere Of The Brain

    Since the left hemisphere of the brain controls the right side of the body, any injuries in it could lead to right-sided weakness. The following problems could arise:

    • Difficulty understanding both written and spoken words.
    • Difficulty expressing both written and spoken words.
    • The person finds it difficult to coordinate or program motor movements for speaking or medically called apraxia.
    • Slurred speech or change in the sound of the voice .
    • Difficulties with numbers.
    • Difficulty in dealing with complex problems.

    The Peripheral Nervous System

    Central Nervous System: Crash Course A& P #11

    In addition to the central nervous system there is also a complex network of nerves that travel to every part of the body. This is called the peripheral nervous system and it carries the signals necessary for the body to survive . Some of the signals carried by the PNS are related to voluntary actions. If you want to type a message to a friend, for instance, you make conscious choices about which letters go in what order and your brain sends the appropriate signals to your fingers to do the work. Other processes, by contrast, are not voluntary. Without your awareness your brain is also sending signals to your organs, your digestive system, and the muscles that are holding you up right now with instructions about what they should be doing. All of this occurs through the pathways of your peripheral nervous system.

    Recommended Reading: Why Do People Get Brain Freeze

    Right Brain Left Brain

    The cerebrum is divided into two halves: the right and left hemispheres They are joined by a bundle of fibers called the corpus callosum that transmits messages from one side to the other. Each hemisphere controls the opposite side of the body. If a stroke occurs on the right side of the brain, your left arm or leg may be weak or paralyzed.

    Not all functions of the hemispheres are shared. In general, the left hemisphere controls speech, comprehension, arithmetic, and writing. The right hemisphere controls creativity, spatial ability, artistic, and musical skills. The left hemisphere is dominant in hand use and language in about 92% of people.

    The Autonomic Nervous System

    The autonomic nervous system is part of the peripheral nervous system in humans. It is regulated by the hypothalamus and controls our internal organs and glands, including such processes as pulse, blood pressure, breathing, and arousal in response to emotional circumstances. The ANS is generally thought to be outside of voluntary control.

    The ANS can be further subdivided into the sympathetic and parasympathetic nervous systems. When activated, the sympathetic nervous system controls the endocrine glands to prepare the body for emergency action. SNS activation causes the adrenal glands to produce epinephrine , which results in the fight-or-flight response. The fight-or-flight response involves increased blood flow to the muscles, increased heart rate, and other physiological responses that enable the body to move more quickly and feel less pain in situations perceived to be dangerous.

    Conversely, the parasympathetic nervous system functions when the body is relaxed or at rest it helps the body store energy for future use. Effects of PN activation include increased stomach activity and decreased blood flow to the muscles.

    The parasympathetic and sympathetic divisions of the ANS have complementary functions, and they operate in tandem to maintain the bodys equilibrium. Equilibrium of the body, in which biological conditions are maintained at optimal levels, is known as homeostasis.

    Read Also: Why Do People Get Brain Freeze

    Don’t Miss: Cebria Vs Prevagen

    More articles

    Popular Articles