Running Head: SPLIT BRAIN LATERALIZATION
Difference of Lateralization Between Split Brain
And Intact Brain Patients
Psychology 102 Section 6X Student
Abstract
Split brain patients lateralize functions in their brains to either side of the brains while intact brain patients utilize both sides of their brains. A group of 20 subjects were tested, 10 split brain and 10 intact brain patients. We gave these subjects three exams, a vocabulary test, a logical reasoning task and a face recognition task. We found that split brain patients have a lower correlation between these exams compared to those of an intact brain. If we were to replicate this exam we will receive roughly the same numbers, but if done so more patients to
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3C. The correlational method will help me analyze the data and decipher the correlation to identify a possible relationship between the split brain condition and laterality.
Data were collected from a group of split-brain patients and a group from the general population to test the hypothesis using the correlational method. Each group completed three tasks shown previously to be lateralized: (1) a vocabulary test, (2) a logical reasoning
In the excerpt “Right Brain Rising”, Daniel Pink tells his experience in depth detail of an intriguing brain scan beneficial both to his curious mind, and the world of science. He then goes on to inform readers of the two distinct halves resting in our skulls; following up with the past inferiority associated with the human right brain, thought to be due to years of evolution. After acknowledging the disproved theory, Pink delves into information pertaining to psychology’s six
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
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
2013). Functional lateralization is found to form at an early age, and lateralized connections can be unique amongst individuals (Nielson et al. 2013). Change in lateralization with age is insignificant, defending that lateralization development occurs during the stages of early development (Nielson et al. 2013). Current studies have concluded that lateralization does not vary amongst genders, but instead individuals (Nielson et al. 2013). The question of left or right brain dominant has arisen after Sperry’s contributions. Research has concluded that left or right brain dominance does not exist as a whole, but instead varies amongst individuals (Nielson et al.
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
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
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
Describe how an understanding of both a normally functioning brain and a split brain enables us to better appreciate the fact that most information processing takes place outside of
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 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.
Mead & Hampson (1996) developed a study involving the divided visual field paradigm and a phonological rhyme/non-rhyme task to test the speed and accurateness of either side of the brain. This study was used to investigate functional asymmetry between the left and right hemispheres in phonological processing. The research was taken out equally on 15 male and 15 females London Metropolitan University students ranging from ages 18 – 35 years old. They were all specifically chosen to be right–handed and had English as their first language thus providing a fair experiment to see whether our left hemisphere (left side of the brain) or the right hemisphere is faster and more accurate. In conclusion using the mean and standard
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:
When a traumatic brain injury happens to the frontal “zone”, it is striking the brain’s largest lobe. The frontal lobe is anterior to the left and right cerebral hemispheres, this lobe is in charge for conscious thinking, voluntary responses, and personality traits. When someone is trying to find the right word or phrase to say, it is this part of the brain he or she may rely on. Destruction to this crucial lobe can create destruction to a person’s brilliance, attention span, and organizational efficiency, as well as the failure of
directly due to either being left brain or right brain. What is left brain or right brain you ask?
For many decades people have been considered to be either right or left side dominant in regards to brain function which came with defined roles such as “creative” or “analytical”. This thinking tends to be over-simplified as most people use their entire brains daily (Jensen, 2010). On the other hand people do use different parts of their brain for different tasks according to how they perceive those tasks.