Lateralisation and localisation of brain functions relate in a certain point of view where cognitive developments are coordinated in the brain’s structure.
Lateralisation of brain function refers that a particular mental procedures are predominantly specified in either the left or right sides of the brain. These mental roles are being delivered through the left or right hemispheres, although it’s never both. Both hemispheres are engaged in several cognitive functions like verbal language and mental state. Nonetheless, it is more common that language is located at the left hemisphere, whereas emotions function at the right side of the brain. To broadly examine more about localization and lateralization of brain function, a number of case studies was led. The split-brain study executed by Roger Sperry and Michael Gazzaniga in 1964 conducted to a superior
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Their study helped several psychologists and scientist to comprehend how the brain functions to not only be localized in particular areas, but also lateralized. That is to say, both the left and right areas of the brain appear to be relatively in control for specific actions. They have examined split brain patients that have undertaken corpus callosotomy, splitting of a substantial area of the corpus callosum. The role of corpus callosum, is it connects both hemispheres which tolerates the interaction among the left and right sides of the brain. If by any chance this is severed, both hemispheres now have a less ability to communicate and connect with each other. Generally, the corpus callosum needs to be cut to inhibit epileptic seizures. After this is cut,
...owell, E. R., Thompson, P. M., & Toga, A. W. (2004). Mapping changes in the human cortex
The author explains that in many businesses, abilities associated with the left side of the brain used to matter the most. These include lin...
The textbook mentioned how it is possible to live with one side of the brain (Lilienfeld et al., 2016). However, I was still a bit confused on this concept because I have always thought that you need both hemispheres working together to function properly. As I watched the TedTalk, I was further able to change my understanding of the concept that you can live with one hemisphere, you would just lose some functions associated with that hemisphere, as Jill explained (Taylor, 2008). Not only that, but from the textbook I never understood how you would feel without one of your hemispheres not functioning properly, I personally thought that you would lose some abilities and it would be difficult to survive. However, the TedTalk changed this understanding of mine because, like Jill, although she lost some functions, she lost all her stresses, and she felt peace, as she states, “So here I am in this space, and my job, and any stress related to my job - it was gone. And I felt lighter in my body. And imagine all of the relationships in the external world and any stressors related to any of those - they were gone. And I felt this sense of peacefulness” (Taylor, 2008). It gave her a whole new world and it never occurred to me that this could happen, so it really expanded on the knowledge obtained from the
Witelson SF (1995) Neuroanatomical bases of hemispheric functional specialization in the human brain: Possible developmental factors. In Kitterle FL (Ed), Hemispheric communications: Mechanisms and Models. (pp. 61-84) New Jersey: Lawrence Erlbaum Associated, Inc., Publishers.
The two hemispheres of the brain are the left and the right hemisphere. Each having it's own unique purpose and function. The two hemispheres are separated by a fold down the middle connected only by a thick nerve cable called the corpus callosum. The Left hemisphere is thought to be the logical side controlling speech, reading, writing, details, facts, maths and science and rational, literal, practical analysis. The right hemisphere is seen as controlling the intuitive, creative side of life, with spatial perception, symbols and images, face recognition, imagination, beliefs and fantasy. (Vered, 2013, www.brainskills.co.uk)
Burns, M. (2011, July 12). Left vs.Right: What Your Brian Hemispheres are really Up To.
Brain Lateralization is a complex and ongoing process by which differing regions of the brain “take over” the functioning of specific behaviors and cognitive skills. Lateralization literally means that certain functions are located (in part or total) on one side of the brain.
Wessinger, C.M., Clapham, E. (2009) Cognitive Neuroscience: An Overview , Encylopedia of Neuroscience. 12(4) 1117-1122.
The brain has four major lobes. The frontal lobe, the parietal lobe, the occipital lobe, and temporal lobe are responsible for all of the activities of the body, from seeing, hearing, tasting, to touching, moving, and even memory. After many years of debating, scientist presents what they called the localization issue, Garret explains how Fritsch and Hitzig studied dog with conforming observations, but the cases of Phineas Gage’s accident in 1848 and Paul Broca’s autopsy of a man brain in 1861 really grabbed the attention of an enthusiastic scientific community (Garret 2015 p.6)
Brain Lateralization is a complex and ongoing process by which differing regions of the brain “take over” the functioning of specific behaviors and cognitive skills. Lateralization literally means that certain functions are located (in part or total) on one side of the brain.
Roger Sperry is one of the big Neurobiologists in the 1950’s. Sperry studied the relationship of the right and left hemispheres of the brain. In one of his experiments he flashed the word “Fork” in front of the patient. If the patient was asked to say the word he could not but if asked to right the word he would start to right the word “Fork”. This happed when the two brain hemispheres were disconnected from each other. At an another experiment he placed a toothbrush in the patients left hand and blind folded the patient and was asked to identify it they could not do it. But if placed in the right hand the patient would know right away what it was. That is just one of the types of study he did in his time.
Most of the noninvasive imaging methods estimate brain activity by changes in blood flow, oxygen consumption, glucose utilization, etc. Discuss the potential problems with using this type of indirect measure.
Nowadays, it is widely known that the right and left hemisphere have different functions. The two hemispheres are equally important in a daily life basis. Nevertheless, in the 1960’s this was not common knowledge. Even though today the importance of the brain hemispheres is common knowledge, people don’t usually know to whom attribute this findings. One of the people who contributed to form a more defined picture about the brain hemispheres and their respective functions was Roger Wolcott Sperry, with the split brain research. Roger Sperry did more contributions than the split brain research, but this is his most important and revolutionary research in the psychological field. Thanks to the split brain research, Sperry proved that the two hemispheres of the brain are important, they work together and whatever side of the brain is more capable of doing the task is the hemisphere that takes the lead.
R. L. Paul, M. M. (1972). The Species of the Brain Research, 1-19. pp. 113-117. S. A. Clark, T. A.
The human body is divided into many different parts called organs. All of the parts are controlled by an organ called the brain, which is located in the head. The brain weighs about 2. 75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control centre of the body. The brain flashes messages out to all the other parts of the body.