Split Brain: What Happens when You Have Two Brains?

It is still not fully understood whether or not the action of certain tasks is actually dependant on both of the brain hemispheres, because they both appear to have control over some tasks. An example of this, is the left hemisphere which is said to be responsible for the analytic part of the tasks, such as reading and making calculations. Within many individuals, it is also the dominant centre of language

According to the theory of lateralisation developed by Robert Sperry and Robert Ornstein, the cerebral cortex in the two hemispheres perform the same motor and sensory functions but each of the hemisphere is specialized for different tasks. As the brain develops, the left hemisphere is superior in doing tasks that involve speech, language, reading, and writing. The right hemisphere shows superiority in tasks that involves creativity, intuition, facial recognition, non-verbal imagery, musical recognition, sense of direction, play and sports, learning experience and risk-taking. Lateralisation is developed for the task that is done, that is the right hemisphere is used for a particular function. This decision is influenced by genetics, childhood learning experiences and

The human brain is a wondrous invention that has many scientists and researchers very busy to this very day. There are numerous qualities about the brain humans know about, yet there are still a great number of mysteries to the brain and how it functions left to be discovered and shared. Some facts scientists do know about the brain is that it is divided into to primary sections, called hemispheres. Each person has a left and right hemisphere of the brain. Each hemisphere is in charge of specific abilities, tasks, and functions. This paper will review what each hemisphere is responsible for and describe ways that each hemisphere is predisposed to learn.

The purpose of this paper is to evaluate the correlational method as a means for examining the relationship between functions of the left and right hemispheres. I will compare the performance of people with intact brains with the performance of so-called split-brain patients. In many ways, the brains of these two groups are very similar. 1a. The brain stem is found in the deepest part of the brain. The brainstem controls the automatic survival functions of the body, such as breathing. There are no differences between the function of the normal brainstem and the brain of a split brain patient. The brainstem will still supply the automatic survival functions of the body. 1b. The hippocampus is found in the limbic system along with the amygdala, the hypothalamus. The hippocampus is in charge of allowing the body to process information into memories. Without the hippocampus, there is no way for new memories to be created. There is no anatomical difference between the hippocampus in the normal brain and a split brain. 1c. The corpus callosum is found in the center of the brain. The role it plays as a part of the brain is it connects both the left and right hemispheres of the brain, allowing them to work and interact together as a whole system. The difference between the anatomy of the corpus callosum in a split brain patient versus someone without a

The right side of the brain is responsible for putting information together eg. information recived from eyes-if you see a flower information goes from eyes to the right side of your brain , firing neurons, putting information together so you are able to say "I can see a flower".The left side of the brain analyses information which is collected by the right side of the brain. It

Subdural or Epidural bleeding – as bleeding grows it pushes on brain which will mean you have difficulty communicating and moving.

* In split-brain surgery the bundle of fibers that connects cerebral hemispheres (the corpus callosum) is cut to reduce the severity of epileptic seizures.

They also have trouble learning to perform new tasks that require interdependent movement of each hand, like playing the piano. This finding helped conclude that the corpus callosum helps in transfer of information and it is the co-ordination between the two hemispheres that lets us perform activities smoothly. The split of the two hemispheres ultimately made it so you cannot access information the other side of the brain controls. Now, Gazzaniga works at University of California, Santa Barbara teaching psychology so he can pass on knowledge to his students. Gazzaniga and his team of researchers are testing information transfer using a MEG, which maps the brain activity by recording magnetic fields produced by electrical currents in the brain. Unlike split-brain surgery these techniques are non-invasive. He has made many books explaining his work and making information about brain function more accessible to the public. Gazzaniga deserves to be in the Hall of Fame due to his amazing contribution to psychology, his continued efforts in the field, and his willingness to share his findings to educate

As shown in the chart, the split brain has a low correlation than the intact brain, which has a higher correlation. This proves that a person with a split brain cannot process information to the left and right. Face recognition is in the right side of the brain while vocabulary and reasoning in the left side of the brain. When comparing face and reasoning it only gave a low correlation same with face and vocabulary. Vocabulary and reasoning is in the left hemisphere, therefore, being a bit more stronger than the rest of the results. In the intact brain reasoning, vocabulary, and face are being processed to the left and right showing that they are laterized.

The brain is one of the most complicated things ever researched. Typically the brain is split into two halves. The left side of a person’s brain is used for critical and analytical thinking. When the brain is faced with a serious problem the left brain

To further support the bundle theory, Parfit references split-brain cases. A split-brain case is what happens when the corpus callosum connecting the two hemispheres of the brain is severed to some degree in order to treat severe epilepsy. A person with a split brain shows to have two separate streams of consciousness. Ego Theory would argue that there are two separate egos but only one person. When separating “ego” from “person” does Ego Theory still hold valid? Parfit and the Bundle Theory state that this is an example of a different awareness of events occurring at the same time, not different egos. According to Parfit there is no “person” involved.

The connectionist model describes the different areas of the brain and how they process particular types of information (Brookshire & McNeil, 2015). We have a greater understanding of left hemispheric damage. For example, if an individual has damage to their posterior-inferior third frontal gyrus of the left hemisphere, they will present with Broca’s aphasia, which evidences as motor planning deficits. While scientists and researchers have a general understanding of what the right hemisphere is responsible for, we have yet to understand specific areas precise responsibilities. Generally, we recognize the right hemisphere is responsible for behavior and cognition, perception, recognition and expression, attention, and pragmatic communication (Brookshire &

The results of this study show us the brain is not in fact symmetrical and the two hemispheres in the brain work in different ways. The left hemisphere is known to play the dominant role, which is in control of all complex behavioural and cognitive processes as for the right hemisphere it only plays a minor role. This report will further analyse how different the two hemisphers is the dominant side of the brain.

Left-right brain dominance is about the fact that the distinct hemispheres influence thinking. The left hemisphere is associated with logical, analytical thinking and a linear approach to problem solving. The right hemisphere is associated with creative, intuitive and value-based thought process. It is important to note that everyone uses its both hemispheres, but to varying degrees. Four quadrants of the brain, related to different thinking style, have been identified:

directly due to either being left brain or right brain. What is left brain or right brain you ask?