Why Is The Brain Important

Why Is The Brain Important – The power of human brain important facts of human brain, Ten percent of the brain myth, What are brain lobes and how are they important?, What is brain plasticity and why is it so important?, Learn why neuroplasticity is your child’s secret to success — ifn singapore, Brain anatomy

Christopher M. Filley receives funding from the Marcus Institute for Brain Health at the University of Colorado and the US Department of Defense. He has previously received funding from the US National Institutes of Health.

Who hasn’t thought of how a memory is formed, a sentence formed, a sunset admired, a creative act committed, or a heinous crime committed?

Why Is The Brain Important

Why Is The Brain Important

The human brain is a three-kilogram organ that has largely remained a mystery. But most people have heard of the brain’s gray matter, which is essential for cognitive functions such as learning, memory and reasoning.

Why Is It Important To Keep The Brain Active ?

More specifically, gray matter refers to areas throughout the brain where nerve cells — called neurons — congregate. The area most important for cognitive function is the cerebral cortex, a thin layer of gray matter on the surface of the brain.

But the other half of the brain – the white matter – is often overlooked. White matter lies below the cortex and deep in the brain. Wherever it is found, white matter connects neurons within the gray matter.

I am Professor of Neurology and Psychiatry and Director of the Department of Behavioral Neuroscience at the University of Colorado School of Medicine. My work involves the assessment, treatment and investigation of older adults with dementia and younger people with traumatic brain injury.

Finding out how these disorders affect the brain has been the motivation of my many years of study. I believe that understanding white matter is perhaps the key to understanding these disorders. But until now, researchers generally haven’t given white matter the attention it deserves.

The Power Of Human Brain Important Facts Of Human Brain

The approximately 100 billion neurons in the human brain are interconnected by axons, most of which are covered by a myelin sheath. These axons form white matter with their myelin, which helps facilitate communication between neurons throughout the brain. BSIP/Universal Pictures Group via Getty Images

This lack of recognition is largely due to the difficulty of studying white matter. Because it lies below the surface of the brain, even the most high-tech imaging cannot easily resolve the details. But with recent findings, made possible by advances in brain imaging and autopsy tests, researchers are beginning to show just how critical white matter is.

White matter is made up of many billions of axons, which are like long wires that carry electrical signals. Think of them as long tails that act as extensions of neurons. Axons connect neurons to each other at connections called synapses. This is where communication between neurons takes place.

Why Is The Brain Important

Axons join together in bundles or tracts that travel throughout the brain. End to end, their combined length in a single human brain is about 85,000 miles. Many axons are insulated with myelin, a mostly fatty layer that speeds up electrical signaling, or communication between neurons, up to 100 times.

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This increased speed is critical for all brain functions and is partly responsible for the unique mental abilities of Homo sapiens. While there is no doubt that our large brains are due to the addition of neurons through evolution over the centuries, there has been an even greater increase in white matter during evolution.

This little-known fact has profound implications. Increased white matter volume – mainly from the myelin sheaths around axons – increases the efficiency of neurons in the gray matter to improve brain function.

Imagine a nation of cities that all function independently, but are not connected to other cities by roads, cables, the Internet or other connections. This situation is similar to a brain without white matter. Higher functions such as language and memory are organized in networks in which gray matter regions are connected by white matter tracts. The more extensive and effective these connections are, the better the brain functions.

Given its important role in communication between brain cells, damaged white matter can disrupt any aspect of cognitive or emotional function. White matter pathology occurs in many brain disorders and can be severe enough to cause dementia. Damage to myelin is common in these disorders, and when the disease or injury is more severe, axons may also be damaged.

Human Brain: Facts And Information

Over 30 years ago, my colleagues and I described this syndrome as white matter dementia. In this condition, the inactive white matter no longer functions adequately as a connector, meaning that the gray matter cannot work together in a seamless and synchronized fashion. The brain, in essence, has disconnected itself.

Equally important is the possibility that white matter dysfunction plays a role in many diseases currently thought to originate in gray matter. Some of these diseases stubbornly defy understanding. For example, I suspect that white matter damage may be critical in early stages of Alzheimer’s disease and traumatic brain injury.

Alzheimer’s is the most common type of dementia in the elderly. It can impair cognitive abilities and rob people of their identity. There is no cure or effective treatment. Since Alois Alzheimer’s observations of proteins in Alzheimer’s gray matter in 1907 — known as amyloid and tau — neuroscientists have come to believe that the accumulation of these proteins is a major problem behind Alzheimer’s disease. However, many drugs that remove these proteins do not halt patients’ cognitive decline.

Why Is The Brain Important

Recent findings suggest that white matter damage — which precedes the accumulation of these proteins — may be the real culprit. As brains age, they experience a gradual loss of blood flow from narrowing of the vessels that carry blood away from the heart. Reduced blood flow affects the white matter more.

You’ve Likely Heard Of The Brain’s Gray Matter

Notably, there is still evidence that genetic forms of Alzheimer’s disease show early white matter abnormalities. This means that treatments aimed at preserving blood flow to the white matter may prove more effective than trying to remove the proteins. It is a simple treatment that helps control high blood pressure, as it reduces the severity of white matter abnormalities.

Traumatic brain injury patients, especially those with moderate or severe injuries, can be permanently disabled. The most ominous outcome of TBI is chronic traumatic encephalopathy, which is believed to cause progressive and irreversible dementia. In TBI patients, accumulation of tau protein is evident in the gray matter.

Researchers have long recognized that white matter damage is common in people with TBI. Observations of the brains of people with repetitive traumatic brain injuries — football players and military veterans have often been studied — show that white matter damage is evident and may precede the appearance of disordered proteins in the gray matter.

Among scientists, there is growing excitement about the new interest in white matter. Researchers are now beginning to recognize that the traditional focus on studying gray matter has not yielded the results they had hoped for. Learning more about the half of the brain known as white matter will help us in the years to come to find the answers we need to alleviate the suffering of millions of people. The brain has two sides. Left hemisphere and right hemisphere. They work together to deliver behavior. We haven’t heard much about it so far.

Mind In Human Brain

Why are there two hemispheres? Long ago in evolution, this probably allowed different sides of the brain to specialize in different types of behavior: the left side in familiar motor sequences like eating (or for humans, using tools or speaking sentences); right hand in emotional responses such as fight or flight (or yelling in surprise); Specialization means the brain can use parallel processing: the right hemisphere is alert to avoid being eaten by a predator, while the left performs normal motor activities.

But the left and right hemispheres have similar processing capabilities and often work together. Sure, the motor cortex on the left side works on the right side of the body and the right side works on the left side. It’s a little weird, a little…twisted. And most humans are right-handed, but this is probably true of gorillas and chimpanzees, at least when handling objects.

In humans, the processing characteristics of the two sides have subtle differences. The left side focuses more on details. Incorporating more, more information about the right topics. That’s why, when it comes to language, the left hemisphere focuses on the meanings of individual sounds and words and puts sentences together, while the right hemisphere focuses on the overall meaning of communication and the melody (or “pronouncement”) of speech that spans sentences. Adults with damage to the left hemisphere may lose the ability to understand words or produce sentences. Adults with damage to the right hemisphere may begin to speak in robot-like monotones and lose the ability to understand jokes.

Why Is The Brain Important

“The two sides of the brain do similar things. If you destroy one hemisphere, the other side can take over.”

How The Brain Works

However, since the two sides of the brain do similar things, if you destroy one hemisphere, the other side takes over most of the tasks—at least the brain is still flexible enough to undergo this kind of large-scale reorganization. Around age six (other forms of cortical reorganization occur at any age).

But people don’t think like that

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