Sunday, May 15, 2022

How Much Of Our Brain Can We Access

Don't Miss

Where Does It Come From

Do I Only Use 10% of My Brain?

A 2013 survey by the Michael J Fox Foundation for Parkinson’s Research found almost two-thirds of Americans believe we only use 10 per cent of our brains but exactly where the idea comes from is hard to pin down.

Behavioural neurophysiologist Eric Chudler, the executive director of the Centre for Sensorimotor Neural Engineering at the University of Washington in Seattle, says the theory was popularised in the early 20th century by psychologist William James in an influential 1907 essay The Energies of Men.

In it Professor James wrote, “as a rule men habitually use only a small part of their powers which they actually possess and which they might use under appropriate conditions”.

The 1937 foreword to one of the first self-improvement books, How To Win Friends And Influence People by personal development advocate Dale Carnegie, referred to Professor James’ claim.

“Professor William James of Harvard used to say that the average person develops only 10 per cent of his latent mental ability,” the foreword, written by Lowell Thomas, says.

There is also evidence to suggest that the work of brain researchers in the first half of the 20th century helped popularise the idea.

Karl Lashley, elected president of the American Psychological Association in 1929, did experiments on rats which found they only needed small amounts of the brain to conduct a range of tasks including running a maze.

What Can We Do To Improve Our Brains Function

It isnât just older people encountering cognitive decline who should be working to improve their brains, Rebecca says.

âOlder people get the most focus, but thinking skills are important for everyone,â she says. âThe opportunity to improve the health of our brain is there for all of us at any stage of our life, and the earlier in life you start, the better the effects.â

Hereâs what we can all do to optimise the health and function of our brain.

Why Do We Forget

The inability to retrieve a memory is one of the most common causes of forgetting. So why are we often unable to retrieve information from memory? According to this theory, a memory trace is created every time a new theory is formed. Decay theory suggests that over time, these memory traces begin to fade and disappear.

Don’t Miss: What Does Fluoride Do To Your Brain

What Is The Memory Capacity Of A Human Brain

The human brains memory capacity in the average adult can store trillions of bytes of information. In a Stanford Study, it was reported that the cerebral cortex alone has 125 trillion synapses. In another study, it was reported that 1 synapse can store 4.7 bits of information. Neurons are the cells which processes and transmits messages within the brain, and synapses are the bridges between neurons which carry the transmitted messages. Running the numbers 125 trillion synapses 4.7 bits/synapse, and about 1 trillion bytes equaling 1 TB .

This storage capacity is an amount over 74 Terabytes

If you have a fairly new computer, tablet, or smartphone, you understand the phrase megabytes and gigabytes, this knowledge might help put your brains immense information storage capacity into perspective.

Early-generation personal computers had at best a few megabytes of hard-drive information storage capability. Thats a few million pieces of digital memory seemingly a lot at the time, but small by todays standards.

For instance, it is not uncommon for todays smart phones to have gigabytes of memory capacity or more.

By comparison, the IRSs own massive data warehouse, which keeps track of 300-plus million Americans and many more million businesses, has the capacity of 150 terabytes of memory. Yet Yahoos 2.0 petabyte computational center, which can process 24 billion events a day, is a full 20 percent smaller than the capacity of a single human brain.

So Alabama Should Be More Violent Than Alaska

How much of your brain do you use? And can you boost it ...

Right. All things being equal, the key to a good scientific study is that theres a good control. But comparing Alabama and Alaska may not be conclusive, as there are many differences. Throughout much of the year, people in Alaska probably see less light than people in Alabama, for instance. And the presence of colors and light levels in our environment can also have significant effects, both on the emotional aspects of personality and on cognitive functions.

Many of us are aware that not getting enough daylight can cause seasonal affective disorder, or SAD. Less familiar is the effect of colors. Even tiny color cues in your environment can affect your behavioral performance. It has been found, for instance, that blue-green-yellow type colors tend to be particularly arousing. Red, as its reputation suggests, tends to promote aggression and avoidance. In one study, researchers put little red or blue cues at the top of a fake exam, and found that the people who had the red cues on the exam did worse.

Also Check: Cebria Vs Prevagen

How To Use More Of Your Brain

wikiHow is a wiki, similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 9 people, some anonymous, worked to edit and improve it over time.There are 9 references cited in this article, which can be found at the bottom of the page. This article has been viewed 92,202 times.Learn more…

The belief that humans only use 10 percent of their brain is a myth. The brain is a living, hard-working organ that governs most of the bodys functions.XResearch source However, you can expand your capabilities and use more of your brain by maintaining your healthy and challenging yourself to try new things.

How Can We Unlock The 90% Of Our Brain That We Never Use

Category: Biology Published: December 19, 2012

Healthy humans use all of their brain. There is no part of the brain that goes unused. Certain tasks work certain parts of the brain more, but they all play important roles, as explained by neurobiologist Dr. Eric Chudler. Brain maps, as found in modern anatomy books, indicate that each part of the brain has a specific function essential to a healthy human. If there were a part of your brain that really went unused, then you could safely damage that part in an accident with no ill effects. But decades of medical records show that damage to any part of the brain has severe effects. If 90% of the brain were not used, then 90% of the brain tumors would cause no problem. Imagine brain doctors telling 90% of their cancer patients, “I have good news and bad news. Bad news: you have a brain tumor. Good news: it’s in the part of the brain that you will never use.” The thought is absurd.

Read Also: Does Mike Tyson Have Brain Damage

The First Sighting Of The Myth

The actual confirmed first written sighting of the myth about how much of our brain we us, though, is in a 1940s advert for the book Cold Comfort Farm by Stella Gibbons :

Whats holding you back? Just one fact one scientific fact.

That is all.

Because, as Science says, you are using only one-tenth of your real brain-power!

Whatever its provenance, the myth about how much of our brain we use is certainly a slippery customer.

The reason is two-pronged: first, its impossible to prove something doesnt exist and second, people like to believe it.

If I say Ive seen a Pegasus, or visited Mars, or that all our brains have huge untapped potential, you cant definitively prove me wrong.

Thats why, despite a few good solid blows to the head, this myth refuses to go down.

Perhaps putting it the other way around might deliver the knock-out blow.

Instead of talking about the 90 percent of untapped potential, just ask people why they only use 10 percent of their brains.

Would anyone seriously admit to that?

I, for one, am working at maximum capacity.

Well, most of the time anyway

Science Debunks Scarlett Johansson’s Supposed Superpower In ‘lucy’

How much data can we store in our Brain || Endless Dunya

Spoiler alert: Don’t believe everything Morgan Freeman’s characters tell you.

Image caption: Scarlett Johansson plays the super-smart superhero title character in ‘Lucy’

Image credit: Universal Pictures

Just as his god-like Vitruvius fed sweet, naive Emmet a bogus prophecy in The Lego Movie, The Washington Post points out Freeman’s latest character is once again doling out Hollywood falsehoods with authority in the summer thriller Lucy.

This time, the movie myth that needs busting is that human beings use only 10 percent of their brainsa “fact” Freeman cites while playing Professor Norman in the TV ads for Lucy, whose title character “is able to kick butt and take names because some drug made her a super-powered brainiac.”

But it’s pure science fiction that it takes a chemical cocktail to make humans use their entire brains. It turns out that we are all already giving it everything we’ve got, according to Dr. Barry Gordon, a professor of neurology at the School of Medicine and professor of cognitive science at the Krieger School of Arts and Sciences.

The Post refers to an interview with Dr. Gordon, published by Scientific American in 2008.

Gordon, a behavioral neurologist and cognitive neuroscientist, told Scientific American that “we use virtually every part of the brain, and that the brain is active almost all the time,” he said. “Let’s put it this way: the brain represents three percent of the body’s weight and uses 20 percent of the body’s energy.”

Read Also: Is Cebria Fda Approved

The Origins Of The Myth

Researchers suggest that this popular urban legend has existed since at least the early 1900s. It may have been influenced by people misunderstanding or misinterpreting neurological research. The 10% myth may have emerged from the writings of psychologist and philosopher William James. In his 1908 book, The Energies of Men, he wrote, “We are making use of only a small part of our possible mental and physical resources.”

The myth has perpetuated much like other urban legends. Movies depict characters capable of remarkable feats when the supposedly unused 90% of their brains are “unlocked.” Well-intentioned people such as motivational speakers or teachers often cite the 10% myth as a way to demonstrate that all people should strive to live up to their full potential. Unfortunately, less well-meaning people have also used the myth to promote and sell products and services that they claim will unlock your brain’s hidden abilities.

A Powerful But Limited Machine

So you can imagine how powerful the brain is, lets do a bit of maths. The human brain has about 100 billion neurons. While many popular publications report that each neuron fires about 200 times per second on averageand its the first number youll get if you look it up on Googlethis number is most likely wrong. Scientists are not exactly sure what the number is, as different parts of the brain fire at different rates, but a paper suggests a rate of 0.29 per second, based on rough calculations. Each neuron is thought to be connected to about 7,000 other neurons, so every time a specific neuron fires a signal, 7,000 other neurons get that information. If you multiply these three numbers, you get 200,000,000,000,000 bits of information transmitted every second inside your brain. Thats 200 million milliona number too big to visualise. The point is: the brain is a powerful machine.

Memory depends on forming new neural connections, and as weve seen before, we do have a limited number of such connections. When we age, it becomes harder for our brain to create new connections, and existing connections are being overloaded with several memories. It becomes both harder to learn, and harder to remember, as we tend to start confusing events and facts.

Recommended Reading: Prognosis Of Brain Bleed In Elderly

Introversion And Extroversion Come From Different Wiring In The Brain

I just recently realized that introversion and extroversion are not actually related to how outgoing or shy we are, but rather how our brains recharge.

Heres how the brains of introverts and extroverts differ:

Research has actually found that there is a difference in the brains of extroverted and introverted people in terms of how we process rewards and how our genetic makeup differs. For extroverts, their brains respond more strongly when a gamble pays off. Part of this is simply genetic, but its partly the difference of their dopamine systems as well.

An experiment that had people take gambles while in a brain scanner found the following:

When the gambles they took paid off, the more extroverted group showed a stronger response in two crucial brain regions: the amygdala and the nucleus accumbens.

The nucleus accumbens is part of the dopamine system, which affects how we learn, and is generally known for motivating us to search for rewards. The difference in the dopamine system in the extroverts brain tends to push them towards seeking out novelty, taking risks and enjoying unfamiliar or surprising situations more than others. The amygdala is responsible for processing emotional stimuli, which gives extroverts that rush of excitement when they try something highly stimulating which might overwhelm an introvert.

The Origin Of The Myth

Advanced Golfers

The main allure of the 10 percent myth is the idea that you could do so much more if only you could unlock the rest of your brain. Even with ample evidence suggesting the contrary, why do many people still believe that humans only use 10 percent of their brains? Its unclear how the myth spread in the first place, but it has been popularized by self-help books, and may even also be grounded in older, flawed, neuroscience studies.

The myth could be aligned with messages espoused by self-improvement books, which show you ways to do better and live up to your “potential.” For example, the preface to the notorious “How to Win Friends and Influence People” says that the average person develops only 10 percent of his latent mental ability. This statement, which is traced back to psychologist William James, refers to a persons potential to achieve more rather than how much brain matter they used. Others have even said that Einstein explained his brilliance using the 10 percent myth, though these claims remain unfounded.

Read Also: Do Jigsaw Puzzles Help Your Brain

Humanity Is A Supercomputer

In the meantime, we already have access to a supercomputer: humanity. Knowledge is not the products of a single brain. Knowledge is gained and shared by some, and then enriched by others. If there are current limits to what our brains can understand, theres no reason to imagine a limit to what humanity can understand, especially now that we have the Internet to connect all our minds and share knowledge without any limitation.

The recent phenomenon of citizen science is a good illustration. It breaks down the walls of the laboratory and invites in everyone who wants to contribute. Citizen science ranges from crowdsourcing, where citizens act as sensors, to distributed intelligence, where citizens act as basic interpreters with a combined power thats much more powerful than any existing computer. Participatory science allow citizens to contribute to problem definition and data collection, and actively involves citizens in scientific projects that generates new knowledge and understanding.

Stress Can Change The Size Of Your Brain

I bet you didnt know stress is actually the most common cause of changes in brain function. I was surprised to find this out when I looked into how stress affects our brains.

I also found some research that showed signs of brain size decreasing due to stress.

One study used baby monkeys to test the effects of stress on development and long-term mental health. Half the monkeys were cared for by their peers for 6 months while the other half remained with their mothers. Afterwards, the monkeys were returned to typical social groups for several months before the researchers scanned their brains.

For the monkeys who had been removed from their mothers and cared for by their peers, areas of their brains related to stress were still enlarged, even after being in normal social conditions for several months.

Although more studies are needed to explore this fully, its pretty scary to think that prolonged stress could affect our brains long-term.

Another study found that in rats who were exposed to chronic stress, the hippocampuses in their brains actually shrank. The hippocampus is integral to forming memories. It has been debated before whether Post Traumatic Stress Disorder can actually shrink the hippocampus, or people with naturally smaller hippocampuses are just more prone to PTSD. This study could point to the stress being a factor in actually changing the brain.

You May Like: Cebria For Memory Loss

The Book A Change Of Heart Revealed Something Extraordinary: That When A Person Has A Heart Transplant They Can Also Feel Like Theyve Inherited Some Of The Donors Personality Traits Do You Think That This Is Possible

As a scientifically minded skeptic, I dont believe its possible or have a plausible explanation for it. However, its clear that the author of the book, Claire Sylvia, experienced a tremendous emotional upheaval. Whether she gained the memories of the donor seems highly doubtful. But the fact that the transplant caused emotional upheavalthat is something I dont dispute. I cite a study of a large population of heart transplant recipients, where about 20 percent reported personality changes.

If you look at other transplant patients, theyre also reporting significant changes in mood, some for pretty well defined physiological reasons. One example is liver transplants. The liver is involved in detoxifying the blood and toxins in the blood affect the brain. So, if you correct somebodys malfunctioning liver, you also change their cognitive landscape.

More articles

Popular Articles