The human brain is a miraculous organ. It regulates thought, memory, judgment,personal identity, and other aspects of what is commonly called mind. It alsoregulates aspects of the body including body temperature, blood pressure, andthe activity of internal organs to help the body respond to its environment andto maintain the body’s health. In fact, the brain is considered so central tohuman well-being and survival that the death of the brain is considered in manyparts of the world to be equal legally to the death of the person. In the pastfifteen years or so there has been a lot of talk of left brain and right brainpeople. Clearly their are misconceptions and truths about how our brainhemispheres operate.Order now
First of all the myth of the left brain and right braintheory. This states that generally people see the left hemisphere of the braincontrolling logic and language and the right, creativity and intuition. Inaddition people differ in their styles of thought, depending on which half ofthe brain is dominant. Some people believe that most of what these notions stateis farce. Next the article explores the history of this fascination of the leftand right hemispheres of the brain.
. It wasn’t until 1962 when Roger W. Sperrybegan experimenting on certain aspects of the brain that contribute to the truthof the left and right brain theory. Sperry studied people who had undergonesurgical division of the corpus callosum, the bridge between the twohemispheres. His studies showed that, “an object placed in the right hand(left hemisphere) could be named readily, but one placed in the left hand(nonverbal right hemisphere) could be neither named nor described. DoreenKimura.
Kimura developed behavioral methods which involved presenting visualstimuli rapidly to either the left or right visual fields. Another importantmethod developed was “dichotic listening” which centered around theuse of sound to study the hemispheres. Through these tests and the continualstudy the theory that the left brain controlled ended. Instead a new theory wasborn known as the two-brain theory. This said that at different times one of thetwo hemispheres would be operating. An example of this is that the righthemisphere is in control when an artist paints but the left hemisphere was incontrol when a novelist wrote a book.
This theory failed because of one physicalstudies showed that people with hemispheres surgically disconnected couldoperate in everyday life. Also, research demonstrated that each hemisphere hadits own functional expertise, and that the two halves were complementary. Thereare five pionts two each hemisphere. 1. The two hemispheres are so similar thatwhen they are disconnected by split-brain surgery, each can function remarkablywell, although quite imperfectly 2. Although they are remarkably similar theyare also different.
The differences are seen in contrasting contributions. Eachhemisphere contributes something to every action a person takes. 3. Logic is notconfined to the left hemisphere. Although dominant in the left logic is presentin the right hemisphere.
4. There is no evidence that either creativity orintuition is an exclusive property of the right hemisphere. 5. Since the twohemispheres do not function independently, and since each hemisphere contributesits special capacities to all cognitive activities, it is quite impossible toeducate one hemisphere at a time in a normal brain. Through my research I cameto the conclusion that people are not purely left or right brained.
There is acontinuum in which the hemispheres work together in harmony. Often the left orright hemisphere is more active in some people but it is never the soleoperator. “We have a single brain that generates a single mentalself.” , but merely somewhere on the scale between left and right brain.Some of us are extreme left, few extreme right and most in the middle leaningleft a bit (this is where I fell).Psychology