Deja Vu The Mysterious

Have you ever visited a home for the first time and suddenly you feel familiar with the house? Or have you ever been in an event when suddenly you feel that you've experienced it you can not even remember when it happened? That deja vu, one mysterious phenomenon in human life.
"Om, I felt that I had done the same thing, the same movement and others"
One day, the phrase above into the comment box on this blog. Although that sentence sounds scary and mysterious, but in this case it looks like I have the answer. This is called deja vu.

Many of us have heard this word, but probably few know its meaning.
Definition Deja VuDeja vu is a French word meaning "already seen". This word has several derivatives and variations like deja vecu (has experienced), déjà senti (already thinking) and deja visite (visiting). Deja Vu name was first used by a French scientist named Emile Boirac years studying this phenomenon in 1876.
Besides deja vu, there's another French word that is the opposite of deja vu, that Jamais Vu, meaning "never seen". This phenomenon occurs when a person is temporarily unable to recall or recognize events or people who have never known before. I think some of you are also often experience.

Before we look at the deja vu, first, we need to know what is called the "Recognition Memory", or a memory identifier.
Recognition MemoryRecognition memory is a type of memory that causes us to realize that what we are experiencing now actually we've experienced before.
Our brain fluctuates between two types of Recognition Memory, the Recollection and Familiarity. We call a memory as Recollection (deleveraging) if we could mention the exact situation right away when we have experienced ever appeared before. For example, if we meet someone at the store, then immediately we realized that we've never seen before on the bus.
While the memory is called Familiarity comes when we can not call exactly when we look at the man. Deja Vu is an example of Familiarity.
During a Deja Vu, we recognize the situation we are facing, but we do not know where and when we had to deal with before.
Believe it or not, 60 to 70 percent of the people on this earth has never experienced deja vu at least once, whether it's a sight, sound, taste or smell. So, if you are experiencing deja vu, you are definitely not alone in this world.
Theories of Deja VuAlthough Emile Boirac have researched this phenomenon since 1876, but he never completely finish his research. Therefore, many researchers have tried to understand this phenomenon so that finally we get at least 40 different theories about déjà vu, ranging from paranormal events to neurological disorders.
In this paper, I discuss 40 unlikely theories one by one. So I'll pick a few theories that I think need to know. First, I'll start from the theory of legendary psychologist Sigmund Freud. But before that, I want to show you a picture that is well known. Here it is:

The photo above is a photo illustration "Tip of the iceberg" of the famous. The experts' brains "are using the above illustration to show what our true thoughts. Surface water is the limit of our consciousness. Conscious mind we are chunks that appears above the sea level. While the subconscious mind is a huge chunk of that is in the sea.
According to them, in fact most of the information we receive is stored in our subconscious mind and not come to the surface. Only a small portion of the information we received we really remember or realize. This principle is an important key to understanding the Deja Vu.
Impaired memory accessSigmund Freud is often dubbed as the father of psychoanalysis had to investigate this phenomenon, and it is believed that a person will experience Deja Vu when he spontaneously recalled by an unconscious memory. Because the memory is in the area of ​​the unconscious, the contents of that memory because it does not appear hindered by the conscious mind, but those familiar feelings leak out.
Freud's theory proved to be the foundation for theories that appear next.
But before I discuss other theories, I would like to invite you to get to know one word in advance, the "Subliminal". Subliminal derived from the Latin word, which is "sub" and "Limin or Limen". "Sub" means under, while "Limin" meaning threshold. In terms of psychology, subliminal means to operate below conscious.
Again, dealing with the subconscious. I mean introducing this word is to understand the theory below.
Distracted - phone theoryA researcher named Dr. Alan Brown had conducted experiments that are expected to recreate the process of deja vu. In his experiments, he and his partner Elizabeth Marsh gives subliminal suggestion to the subject of his research.
They showed a series of photos showing the different locations to a group of students in order to ask them which one is considered the most familiar to them. In this experiment, all the students who were tested had never visited the locations in the image.
But before they show the pictures, first they played most of the picture on the screen at subliminal speeds of about 10 to 20 milliseconds. Speed ​​was enough for the human brain to store the information in the subconscious, but not enough for students to be aware of and pay attention to her.
In this experiment proved that the locations of the photographs that have been shown to speed subliminal deemed most familiar to those students.
A similar experiment conducted by Larry Jacobi and Kevin Whitehouse of Washington University. The difference is, they use a set of words, not pictures. However, the results obtained with experiments Dr. Alan Brown.
Based on the results of his experiments, Dr. Alan Brown then proposed a theory known as the theory of the phone (or distracted).
This theory says that when our attention divided, then, is subliminal, our brain stores information about the conditions around us, but do not really notice it. When we begin to focus attention again, then all the information about our surroundings is subliminal stored would be "called" out so that we feel more familiar. It's the same as the iceberg below the water that rises to the surface.
For example, if we enter a house while chatting with other people, then our attention will not be glued to the condition of the house, but we have brains store information that is subliminal subconscious. When we finished talking, we begin to focus your mind and the information stored in the subconscious began to emerge. Immediately we started to feel familiar with the house.
So, based on this theory, deja vu is not related to the events of the past that have lasted a long time.
Memory from another sourceThere is another theory that matter. This theory believes that our brains to save lots of memory that come from different aspects of our lives, as we watch a movie, pictures or books that we read. This information we store without noticing. Along with time, so when we had a similar incident with the information we've stored, the memory stored in our subconscious will rise again.
For example, as a child, may we ever watch a movie that has a scene in a memorial or monument. As adults, we visit this monument and suddenly we felt familiar even though we do not remember the movie.
This theory is similar to the theory of cell phones, but this theory agree that deja vu associated with events that have lasted long in the past.
Dual Processing Theory (vision pending)In many ways, these theories about the cause of Deja Vu is not much different from that proposed by Sigmund Freud. However, a researcher named Robert Efron trying to look further into the mechanism of the brain, not just the mind consciously or unconsciously. Although highly technical, the theory proposes is considered as one of the best theory of Deja Vu ever.
Efron theory is related to the way our brain stores long-term memory and short term. He tested this theory in 1963 at the Veterans Hospital Boston. According to him, the late response of the nerve can cause deja vu. This is because the information that goes into a processing center in the brain through more than one path.
Efron found that the Temporal lobe of the left brain is responsible for sorting incoming information. He also found that this Temporal lobe receives information coming two times with minimal delay between the two transmission.
The information was first entered directly into the Temporal lobe, while the second time took a spin through the right hemisphere first.
If the delay is happening a little longer than normal, then the brain will give a wrong note on the information with regard the information as a memory of the past.
Deja Vu - It seems like I've written this.No, I'm just kidding. This is the first time I wrote about Deja Vu. Although not as scary as Doppelganger phenomenon is also often associated with brain activity, Deja Vu still regarded as a remarkable phenomenon mysterious.
But if you asked me about my opinion, then I think Sigmund Freud had solved the mystery.