Do we use only ten percent of our brains?
Someone has robbed most of your
brain, perhaps even without you knowing it! Well he did not take your brain
specifically, but decided that you would not use it.
It is that old myth that I heard time
and time again about people using only ten percent of their brains. And while
that may be appropriate for those who repeat this saying, but for us-wise
people-we use our whole brains happily!
When answering a question: Do humans
use ten percent of their brains? We must make it clear that there is no
scientific evidence for that. And in other words, this saying is completely
wrong to say from a scientific point of view, but rather a myth, we use our
brains completely!
Now let us look at the possible
origins on which this myth is built and evidence that we are using all of our
brains.
Where did the ten percent
myth begin?
The origin of the belief that we only
use a small part of our brain is unclear. Perhaps that belief was derived from
the controversy that took place in the early nineteenth century. Between those
who believed in the possibility of locating and pinpointing brain functions in
specific areas of the brain. And those who believed that the brain works as a
whole cannot be divided.
This controversy began from the days
of Franz Josef Gall (1757-1828) Johann Gaspar Spurzheim (1776-1832) who
developed the field of phrenology. A science that reveals that certain human
behaviors and characteristics can be inferred from the pattern and the size of
the bumps in the skull.
Of course, not all scientists were
convinced of the opinion of Gal and Spurzheim, for example, Mary Jean-Pierre
Florence (1794-1867), an outspoken critic of phrenology, believed that although
the cerebral cortex, cerebellum, and brain stem all had separate functions. But,
all of these regions work together as a whole (isotonic) unit. Florence
supported his theories with experiments in which he removed areas of the brain
(often in pigeons) and showed that behavioral deficiencies were increasing with
the size of the excised part.
Although the research of Gustav
Fritsch (1838-1927), Edward Hetzig (1838-1907), Paul Brocka (1824-1888) and
Karl Wernicke (1848-1990) in the late nineteenth century provided us with
powerful data to counter the theory of (equipotentiality).
But, some scientists emerged in the early twentieth century who favor the idea
that the brain functions as an integral whole.
Meanwhile, a number of celebrities
have referred to the idea that we use only ten percent of our brains. American
psychologist William James wrote in 1908: "We use a small portion of our
potentially mental resources," and some celebrities who are not
specialists in neuroscience like physicist Albert Einstein and anthropologist
Margaret Mead. They are credited with quotes about humans using only a small
part of the brain.
Regardless of the origin of the myth,
the saying that we use only ten percent of our brains has been promoted by
popular media for years. And in fact many advertisers have taken advantage of
that saying to sell their products exclusively through these ads and say for
example: "if you bought products or tools or Programs-which they are
promoting- you will be able to take advantage of your unused brain energy to
enrich your life and transform it for the better".
Why does this myth continue?
As we mentioned, somehow, somewhere,
somebody started this myth and the popular media continued to repeat this wrong
saying, and everyone soon believed it was true regardless of the evidence.
And according to the belief of the
believers in this myth, if we use more of our untapped brain powers, we can
obtain supernatural memory. And possess many distinct mental abilities, and
even move things just by thinking about it! Again, no data is available to
support any of these allegations.
What does it mean to use only ten
percent of your mental abilities? What data was used to determine this
percentage (10%)? Does that mean that you will be in good shape if you remove
90% of your brain? !! And if the average human brain weighs 1400 grams, and we
remove 90% of it, then what remains is no more than 140 grams of cerebral
tissue, which is close to the size of the brain of the sheep!
It is known that harming a relatively
small area of the brain, such as that caused by a stroke, may cause devastating
disabilities, and some nerve strikes such as (Parkinson's disease) affect only
specific areas of the brain and cause very bad symptoms, although the damage
from these conditions is much less than that of 90% of the brain.
Various pictures from the
famous rumor
This myth is not merely a
misinformation with fixed features, but rather it is multiform and this
adaptive feature gives it a much longer life span than it deserves in its basic
form, where the myth claims that years ago one of the scientists discovered
that we are really using only ten percent of our brains. And is represented the
second picture of the myth is that only ten percent of the cerebral regions
were planned. And therefore this fact was misunderstood that we only use that
ten percent!
And there is a third pattern
described by Extraordinist Craig Karsges, which sees that the brain is
carefully divided-in a way-into two parts: the conscious mind that all people
use for ten to twenty percent of the time, and the subconscious (the
unconscious) in which the rest of the brain lies (80-90%) in the form of
untapped potential, and this description shows a deep misunderstanding of
research conducted on cerebral functions.
Part of the reason the myth survives
for so long is that if one of its forms can be proven wrong. The believer can
simply attribute the reason for his belief in the validity of a saying (10% of
the brain) to another form of it while the belief itself remains intact.
Therefore, for example, if you told one
of them that radiography emission of electrons depicts activity in all parts of
the brain, He may continue to claim that the ninety percent is referring to the
subconscious, and therefore the ten percent is still true in the first place!
Regardless of the image in which the
myth appears, the myth is spread and repeated by both goodwill and pranksters
alike. And therefore the belief that remains is what psychologists have called
(psychological fact) or a belief that is taken as true even though it is not
backed by conclusive evidence, because its constant repetition changes the way
the mind processes life experiences and forces it to submit to superstition.
Those who sympathize with this belief
will repeat it over and over until certification of their speech occurs on a
large scale. As happened with the warning of the danger of swimming immediately
after eating.
Action potentials: evidence
When people use the ten percent
statement, they may mean that one out of every ten neurons is necessary or that
they are used at any given time. But, how can such a ratio be determined? Even
if the neurons do not release action potentials, they may be involved in
receiving signals from other neurons.
Certainly, there are many nerve
pathways that perform similar functions, for example there are several central
means used for vision, and this concept is called abundance (Redundancy) and is
found throughout the nervous system, and there may be multiple ways to perform
the same function One of the safety mechanisms that is used in the event of
failure of one of the common methods used.
In addition, functional brain imaging
studies have shown that all parts of the brain work, and even during sleeping
the brain remains active, it is still being used. But, it is only in a
different state of activity.
And in the end it seems that the
saying (use or lose it) applies completely to the nervous system, during
growth, many new nerve connections (synapses) are formed, and in fact some
nerve connections are removed later during growth, and this period of growth
and removal of synapses continues for (fine tuning) the distribution of nervous
system fibers.
And many studies have shown that if
the inputs of a particular nervous system are removed, then the neurons in this
system will not function properly. And this has appeared quite dramatically in
the visual system. Then, complete vision loss occurs if visual information is
prevented from alerting the eyes and brain during a period Early growth.
Hence it is reasonable to suggest
that if 90% of the brain is not used, many nerve pathways will lose their
function. However, it does not seem that things are going like this.
On the other hand, the brains of
young children have a high adaptability. The function of the damaged region of
the young child’s brain can be performed by the remaining brain tissue. And
there are surprising examples of such recovery in young children whose large
parts of their brains have been removed to control seizures.
However, this (miraculous)
improvement after comprehensive brain surgery is quite rare in adults.
Therefore, the next time you hear
someone say that we use only ten percent of our brains, you can directly
confront them and say to him, "It is not true, we use 100 percent of our
brains".
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