What Are The Two Brain Hemispheres And Their Functions?

by | Last updated on January 24, 2024

, , , ,

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.

Contents hide

What are the left and right brain functions?

The

left brain handles reading, writing, and calculations

. Some call it the logical side of the brain. The right brain is more visual and deals in images more than words. It processes information in an intuitive and simultaneous manner.

What are the two main hemispheres?

The Equator, or line of 0 degrees latitude, divides the Earth into the

Northern and Southern hemispheres

. The Northern Hemisphere contains North America, the northern part of South America, Europe, the northern two-thirds of Africa, and most of Asia.

What does the left hemisphere do?

Left Hemisphere:

The left side of the brain is responsible for

controlling the right side of the body

. It also performs tasks that have to do with logic, such as in science and mathematics.

What does the right hemisphere do?

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.

Do all brains have two hemispheres?

A. All brains have two connected sides, called the

right and left hemispheres

. In the figure, you see the inside of the right hemisphere of a human brain. The main colored parts are the cerebral cortex, the cerebellum, and the brainstem.

Are the two hemispheres of the brain identical?

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 you’d find on the left side also take place on the right, and vice-versa.

What are the brain functions?

The brain is a complex organ that

controls thought, memory, emotion, touch, motor skills, vision, breathing, temperature, hunger and every process that regulates our body

. Together, the brain and spinal cord that extends from it make up the central nervous system, or CNS.

Can you be both left and right brained?

You may have even heard the term “

golden brain

” used to refer to people who use both sides of their brain equally. This is very similar to how most people are either right handed or left handed, and some people are even ambidextrous! … This comes from localization of function, or lateralization, in the brain.

What is the right side of the brain called?

Because of this, it has been called the

“dominant” hemisphere

. The right hemisphere plays a large part in interpreting visual information and spatial processing. In about one third of individuals who are left-handed, speech function may be located on the right side of the brain.

What happens if the corpus callosum is damaged?

Speech and movement ataxia

If the corpus callosum is injured,

the signal transmission from one hemisphere to the other is impaired

and can lead to serious coordination problems, or ataxia. The person lacks control or coordination of voluntary movements such as: Walking. Picking up objects.

Which side of the brain controls memory?

Our brains have two sides, or hemispheres. In most people, language skills are in the left side of the brain.

The right side

controls attention, memory, reasoning, and problem solving.

What emotions does the right side of the brain control?

The neural system for emotions linked to approaching and engaging with the world – like happiness, pride and anger – lives in the left side of the brain, while emotions associated with avoidance –

like disgust and fear

– are housed in the right.

What is the difference between the left and right hemisphere of the brain?

The brain is

divided into symmetrical left and right hemispheres

. Each hemisphere is in charge of the opposite side of the body, so your right brain controls your left hand. The right hemisphere also takes in sensory input from your left side and vice versa. The brain is segmented into regions called lobes.

Does the brain have two halves?

NARRATOR: 85% of our brain consists of

the cerebral cortex

, which is divided into two hemispheres, each with four main lobes. The cortex handles many of our higher functions. Areas on both sides control thinking, movement, and sensation. But the right side controls our left side and vice versa.

Why are brain hemispheres crossed?

The two hemispheres of the brain control two different parts of the body

because the nerves that travel down from the brain to the periphery (hands for example) cross over at the medulla

(pyramid decussations to be specific).

What are the 3 major parts of the brain and their functions?

The brain has three main parts:

the cerebrum, cerebellum and brainstem

. Cerebrum: is the largest part of the brain and is composed of right and left hemispheres. It performs higher functions like interpreting touch, vision and hearing, as well as speech, reasoning, emotions, learning, and fine control of movement.

Was Einstein left or right-brained?

You may even see people tying Einstein’s genius to his left-handedness. … While

he was certainly right-handed

, autopsies suggest his brain didn’t reflect the typical left-side dominance in language and speech areas. His brain’s hemispheres were more symmetrical—a trait typical of left-handers and the ambidextrous.

What are the 3 parts of the brain and their functions?

  • The cerebrum fills up most of your skull. It is involved in remembering, problem solving, thinking, and feeling. …
  • The cerebellum sits at the back of your head, under the cerebrum. It controls coordination and balance.
  • The brain stem sits beneath your cerebrum in front of your cerebellum.

What part of the brain connects the two hemispheres?

The two hemispheres are connected by a thick band of nerve fibres called

the corpus callosum

. The brain halves are able to communicate with each other via this ‘bridge’.

Can your brain switch dominance?

In normal people, the

switch allows either the left or right hemisphere to be dominant during different mental tasks

, with the two sides constantly taking turns. … He maintains that one hemisphere can be more immature than the other and that this imbalance leads to different mental disorders.

What is a left brain person like?

For example, a person who is “left-brained” is often said to be

more logical, analytical, and objective

. A person who is “right-brained” is said to be more intuitive, thoughtful, and subjective. 1 In psychology, the theory is based on the lateralization of brain function.

What are the 3 types of the brain?

The brain can be divided into three basic units:

the forebrain, the midbrain, and the hindbrain

. The hindbrain includes the upper part of the spinal cord, the brain stem, and a wrinkled ball of tissue called the cerebellum (1).

What area of the brain controls blood pressure?


The brain stem

sits beneath your cerebrum in front of your cerebellum. It connects the brain to the spinal cord and controls automatic functions such as breathing, digestion, heart rate and blood pressure.

What is spiral cord?


A column of nerve tissue

that runs from the base of the skull down the center of the back. It is covered by three thin layers of protective tissue called membranes. The spinal cord and membranes are surrounded by the vertebrae (back bones).

Which part of the brain controls anger?

The words used to describe anger tend to be volcanic. And science may explain why. When an angry feeling coincides with aggressive or hostile behavior, it also activates

the amygdala

, an almond–shaped part of the brain associated with emotions, particularly fear, anxiety, and anger.

Can a person live without a corpus callosum?

Many people with agenesis of the corpus callosum

lead healthy lives

. However, it can also lead to medical problems, such as seizures, which require medical intervention.

What will happen if a neurosurgeon slice the the corpus callosum in a human?

The procedure involves

cutting a band of fibers (the corpus callosum) in the brain

. Afterward, the nerves can’t send seizure signals between the brain’s two halves. It makes seizures less severe and frequent and may stop them completely.

How does the corpus callosum affect behavior?

Impaired social functioning is a well-known outcome of individuals with agenesis of the corpus callosum.

Social deficits in nonliteral language comprehension, humor, social reasoning, and recognition of facial expression

have all been documented in adults with agenesis of the corpus callosum.

What part of the brain is responsible for emotional intelligence?

The prefrontal cortex, which is part of the neocortex, what Goleman calls the “thinking brain,” interacts with an evolutionarily older part of the brain called the limbic system — what Goleman calls the “emotional brain.” A part of limbic system called

the amygdala

is, in Goleman’s words, “the seat of all passions,” …

What is right brain weakness?

Typically, a child with a RIGHT brain weakness/delay can be described as:

clumsy, hyperactive, anxious, impulsive, distractible

, emotionally reactive, socially awkward and/or immature, having obsessive/repetitive behaviors, having allergies/asthma, and lacking interest in sports.

What happens when the left hemisphere is damaged?

Left hemisphere brain damage can lead to:


Trouble reading and writing

.

Changes in speech

.

Deficits in planning, organization, and memory

as those skills relate to language. Weakness or lack of movement on the right side of the body.

What part of the brain controls thirst and hunger?


The hypothalamus

controls your pulse, thirst, appetite, sleep patterns, and other processes in your body that happen automatically. The hypothalamus also controls the pituitary gland, which makes the hormones that control growth, metabolism, water and mineral balance, sexual maturity, and response to stress.

Sophia Kim
Author
Sophia Kim
Sophia Kim is a food writer with a passion for cooking and entertaining. She has worked in various restaurants and catering companies, and has written for several food publications. Sophia's expertise in cooking and entertaining will help you create memorable meals and events.