As we know English is the most common language uesd to communicate with people around the world. Some people have to study it to go to college and university, others just learn it to be able to understand the English so that they can travel to any place and share their thoughts, ideas and knowledge easily.We also know that many people can read and understand it but unable to speak fluently and write their thoughts clearly. Many language scientists and teachers have been doing research on how to build a effective tool for everyone to learn other languages easily. For right handed people the language center is Left Brain and for left handed its right brain. So they examined right or left brain of volunteers with the help of PET scanning and divided them into different groups .Those candidates who just watched movie without active participation for several weeks could not improve speaking skill significantly. The other group who wathced same movie several times improved speaking skill a little bit more. But those participants who were active in writing and speaking with others improved their skills very significantly. The fact that every participant's brain activity examined by PET scanning at the end of experiment was equal. So learning language, probably, depends on individual basis rather than the activity of our brain. It's really hard for most of the people with age above 25 years to learn new things and incorporate and use it rapidly. Perhaps, our neuronal system in brain is very rigid to learn new things.But once it gets many repetition or hard work , it gets molded to any shape to receive the new things.
The source of information is from different website and reasearch articles, and there is no common conclusion from them. I just made it my version of conclusion. What is your opinion aout it???