If you would split the brain right down the middle into two symmetrical, or equal parts, you would have a right and left hemisphere. Although equal in size, these two sides are not the same, and do not carry out the same functions. The left side of the brain is responsible for controlling the right side of the body. It also performs tasks that have to do with logic, such as in science and mathematics. On the other hand, the right hemisphere coordinates the left side of the body, and performs tasks that have do with creativity and the arts. Both hemispheres are connected by the corpus callosum and serve the body in different ways .
Have you ever heard of the left or right brain theory?
According to the theory of left-brain or right-brain dominance, each side of the brain controls different types of thinking. Additionally, people are said to prefer one type of thinking over the other. For example, a person who is “left-brained” is often said to be more logical, analytical, and objective, while a person who is “right-brained” is said to be more intuitive, thoughtful, and subjective.
In psychology, the theory is based on what is known as the lateralization of brain function. So does one side of the brain really control specific functions? Are people either left-brained or right-brained? Like many popular psychology myths, this one grew out of observations about the human brain that were then dramatically distorted and exaggerated.
The right brain-left brain theory originated in the work of Roger W. Sperry, who was awarded the Nobel Prize in 1981. While studying the effects of epilepsy, Sperry discovered that cutting the corpus collosum (the structure that connects the two hemispheres of the brain) could reduce or eliminate seizures.
However, these patients also experienced other symptoms after the communication pathway between the two sides of the brain was cut. For example, many split-brain patients found themselves unable to name objects that were processed by the right side of the brain, but were able to name objects that were processed by the left-side of the brain. Based on this information, Sperry suggested that language was controlled by the left-side of the brain.
Later research has shown that the brain is not nearly as dichotomous as once thought. For example, recent research has shown that abilities in subjects such as math are actually strongest when both halves of the brain work together. Today, neuroscientists know that the two sides of the brain work together to perform a wide variety of tasks and that the two hemispheres communicate through the corpus collosum.
Researchers have demonstrated that right-brain/left-brain theory is a myth, yet its popularity persists. Why? Unfortunately many people are likely unaware that the theory is outdated. Today, students might continue to learn about the theory as a point of historical interest – to understand how our ideas about how the brain works have evolved and changed over time as researchers have learned more about how the brain operates.
Remember though its true that the right and left side of the brain have different functions in our thinking process!
The brain is a very fascinating yet a complicated organ that basically is like the computer of the human body. It is like the hard drive for our entire body, which stores information. It is also the motherboard of our body since the brain allows messages to cross over from one system to another. Lastly, the brain also is a processor where it controls the speed of how slow or quick our pulse beats, to our breathing, to our running, to our voiding, etc. Ending line it decides how quick or slow we do activities of daily living inside and outside of the body.
