No need to fear if you have trouble remembering phone numbers just mentioned friends or forget a list of groceries to be purchased. Experts say it is normal, not the signs of mental decline.
The experts found the human brain is only able to calculate the 7-digit items or numbers in quick time. From the experiments conducted, the average man can only memorize in the short term (rapid needs) a row of seven digit numbers or other items that have the nickname ‘Seven Rows of magic numbers’.
Seven rows of these magic numbers have been found since the 1950s that by the experts at that time said to be a unique ability of the brain or the so-called working memory brain.
Now scientists began to re-open the mystery behind the seven digits or items in quick to memorize it in relation to brain activity.
If long-term memory is described as an extensive library of tomes, it is described as working memory board that was quickly erased replaced other information.
Working memory is very important because it relates directly to efforts to understand or interact in a conversation, a guidance or navigation when it was in an unfamiliar city and need to memorize quickly, or follow the sports movement in the video is playing who need the ability to memorize quickly.
To test this quite easily. Write down 10 names on the board or friend 10 items on the board. Read once again and then try to recall the item. Most people can only remember a maximum of 7 items or less. So do not be surprised if many people make mistakes or forget items at all.
The question why groups of neurons or nerve cells in the brain produces only a memory like a small blackboard?
When we hear the phrase “That is the best time, it was the worst moment,” the group of neurons (nerve cells) do shots in each of his words. When one group pressing the other, it will prevent other sentence that comes out.
Excitation (stimulation) cluster or a specific group represents a single point. Nerve cells from each sentence are in the order of shots. Then the brain creates pathways from one point or part of the brain to the next point. The most powerful part of each stimulates clusters to inhibit or suppress the other in sequence shots, which makes the denser these pathways.
When we recall the sentence, the brains follow these pathways from one part of the section to section to reproduce the sequence.
Part of the sentence or set of numbers obtained again become a kind of sequences are more excited suppress another group and result in other lines are weak or almost non-existent.
Given the 7 items require about 15 times the pressure. Given the 10 items requiring power shot 50 times stronger nerves, and 20 or more items will require hundreds of times stronger emphasis. But more than that usually not biologically feasible.
Synapses could not be stronger than that. The brain is an extremely complex biochemical machine.
That is a model that performed well, reasonable and interesting. According to the model shows a pattern of working memory that must be seen in the electrical signal.
However, this model there are exceptions for children with autism that can exceed 7 or 8 digits or items and even capable of memorizing random numbers in quick time. Because the brain pathways is much more powerful than others.