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Recommended: Left vs. right brain
It has been shown that the brain works in many mysterious ways, some of which have not been discovered or explained yet. Though one of the most fascinating yet more controversial discoveries is brain dominance, or the left and right hemispheres and what roles each hemisphere has in our lives. Have you ever wondered why you write better with your right or left hand or why you tend to see out of your right or left eye better? Both these two things, as well as many others are determined by which hemisphere is more dominant. There are different theories or superstitions about left or right dominance of the brain. One of the most well-known superstitions is spilling salt and throwing it over your shoulder. It has been said that the left side of the brain is the side of evil or the devil, but “if the left side is …show more content…
When it comes to genetics, the theory that there are two alleles, or two manifestations of a gene at the same genetic location, these alleles are called0 the “D” gene and the “C” gene. The “D” gene is more frequent in the population and is more likely to occur as part of the genetic heritage of an individual. What promotes right-handed preference in the majority of humans is the “D” gene. The “C” gene is less likely to occur within the gene pool. However, when present, the hand preference of the individual with the “C” gene is determined randomly. People with the “C” gene will have a fifty percent chance of being right-handed. These theories can explain the presence of left-handed children in right-handed families and right-handed children in left-handed families. (Scientific wed) AT birth, most babies tend to move one arm-normally the right-more than others. This is a start of forming preference. (encyclopedia
Some do not believe that we have a left and right brain. However, A Whole New Mind: Why Right-Brainers Will Rule The Future by Daniel H. Pink explains that the left and right hemispheres of the brain control different abilities. I have learned from this book how society and the economy have shifted from the “Information Age” to a “Conceptual Age,” how the arguments of left brain theorists (L- directed) differ from those of right brain theorists (R-directed), the three A’s of abundance, automation, and Asia, and the six essential aptitudes or “six senses” of Design, Story, Symphony, Empathy, Play and Meaning.
In this experiment, Mendelain Models are observed. The purpose of the experiment is to understand how traits are passed from one generation to the other as well as understanding the difference between sex linked and autosomal genes. One particular trait that is observed in this experiment is when a fly is lacking wings, also known as an apterous mutation. In this experiment, we will determine whether this mutation is carried on an autosomal chromosome or on a sex chromosome. The data for this experiment will be determined statistically with the aid of a chi-square. If the trait is autosomal, then it will be able to be passed to the next generation on an autosomal chromosome, meaning that there should be an equal amount of male and
An individual can be homozygous dominant (two dominant alleles, AA), homozygous recessive (two recessive alleles, aa), or heterozygous (one dominant and one recessive allele, Aa). There were two particular crosses that took place in this experiment. The first cross-performed was Ebony Bodies versus Vestigle Wings, where Long wings are dominant over short wings and normal bodies are dominant over black bodies. The other cross that was performed was White versus Wild where red eyes in fruit flies are dominant over white eyes. The purpose of the first experiment, Ebony vs. Vestigle was to see how many of the offspring had normal bodies and normal wings, normal bodies and vestigle wings, ebony bodies and normal wings, and ebony body and vestigle wings.
“‘Sinister Children’” was the title psychologist Theodore Blau gave to left-handed children in the late seventies, due to their over abundance “among the academically and behaviorally challenged” and their greater vulnerability to obtaining mental diseases later in life (1). This condescending view on the left-handed population has existed for centuries. The word sinister itself comes from the Latin word sinistra, meaning left hand. In the article “Sinister Minds: Are Left-Handed People Smarter?,” written by Maria Konnikova, a psychologist from Columbia University, she explains how these outdated theories about the intellect of the left-handed community are wrong. In fact, the author elaborates how left-handed people may have higher brain abilities compared to the general population due to the
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
Kozak, B., Strelau, J., & Miles, J. V. (2005). Genetic determinants of individual differences in
In addition, they tested tactile abilities by placing items in the patient's right and left hands, and asked them to describe it or match it to other objects. In the visual test, participants solely said that they only observe lights on the right side, but pointed to lights on both sides. In the tactile test, participants were unable to explain the items in their left hands, but were able to match them to other items. This study supported the fact that the two halves of the brain have particular functions. The left side is enhanced at communication and numbers while right side is superior at identifying faces, three-dimensional interactions, figurative reasoning, and imaginative doings. Reproach has mainly concerned whether or not people can be "left-brained" or
Prefrontal Cortex The prefrontal cortex is the most anterior portion of the frontal lobe. It responds mostly to stimuli signaling the need for movement, however it is also responsible for many other specialized functions. It receives information from all sensory systems and can integrate a large amount of information (Kalat 2004). Studies have shown that the prefrontal cortex is responsible for working memory. Working memory is defined as "the information that is currently available in memory for working on a problem" (Anderson 2005).
both hemispheres of the brain are active but that the left hemisphere may be more active.
there has been a lot of talk of left brain and right brain people. Levy's
Human behavior is a loosely defined foundation for individuality, generally considered to be influenced and developed by the environment. However, recent molecular studies have exposed genetic factors that suggest a more biological origin for behavior. Gene segments in the genome of humans and other animals have been identified and associated with particular behavioral traits. Is it possible that the presence or absence of even a single gene may predispose one to alcoholism, increased irritability, or enhanced intelligence? Clearly exploration of the nature versus nurture argument with regard to genetic predisposition has social, political, and legal significance.
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.
Height, hair color, eye color and sex are just a few examples of ways our DNA has shaped us. But could it be possible that our DNA also effects the way we behave in society. It is possible that genetics effect us is more ways that we may have imagined. Dr. Peter B. Neubaur believes that shyness, eating disorders, obsessive behavior and psychological illness can all be traced back to our genetics. Sexual orientation is also believed to be derived from genes in our body which determine what sexual preference we prefer. Violence and other types of crimes can be linked back throughout a person’s lineage to witness that other family members have been committed similar crimes without ever meeting one and other.
The outlook of a dominant right brain visual person is sporadic and frantic at times but can serve beneficially because of the advantages that right-brained people have due to specific learning styles that allow these individuals to excel in and outside the classroom.
...re of the brain is just half of the brain so why is it the only half being explored in school? This failure to confront the other hemisphere causes weakening in the right hemisphere since the right hemisphere isn?t being exercised.