In 1981, Professor Sperry of the University of California won the Nobel Prize for his research on the different functions of the left and right brains. According to the book “The Right Brain and Creativity”, the left brain is the language brain, which is in charge of logical and theoretical things such as speaking, reading, writing, calculating, assembling and analyzing; the right brain is the music brain, which is in charge of music, art-based art, sports and areas that are difficult to express in words such as three-dimensional senses, patterns, intuition and beliefs. In adults, when the cerebral blood vessels rupture or are blocked, the brain suffers stroke damage due to insufficient oxygen. More stroke patients provide evidence that when the lesion is in the right cerebral hemisphere, it causes paralysis on the left side of the body, but preserves the patient’s full speech function. These patients can still communicate appropriately with others and live reasonably well, but their most serious impairments are the tendency to wander, difficulty remembering things that are not verbal and a bit of emotional flatness. The tragedy of this type of stroke is that the patient is fully conscious and can even understand most of what others say, yet he is unable to express his thoughts verbally. In adults, the division of labor between the left and right brain is so established that damage to the left or right brain cannot be compensated for by the other hemisphere of the brain, thus causing permanent disability. The infant brain has tremendous plasticity. One wonderful case illustrates this: a child who had his left hemisphere removed at the age of 5.5 years was found to have a verbal IQ score of 126 21 years after the surgery, and he still had a non-verbal thinking ability with an operational IQ score of 102. This example demonstrates that either hemisphere can develop advanced language skills.