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Effect of heredity on human behavior
Geneticsin behavior essay
Geneticsin behavior essay
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Fundamental Principles of Human Nature
The heated controversy over how human beings develop their behavior, ideas, reasoning and other abstract traits has been in ongoing debate for centuries. John Locke’s “blank slate” theory of experience and sensation, and Edward Wilson’s theory of evolutionary biology and innate genes are both valid and apply to the development of human nature. It is has been proven through scientific research of the human genome over time, that both sides of this controversial subject are partially correct (Powell). However, I believe Wilson’s theory is the most reasonable and legitimate in influencing the outcome of one’s character.
John Locke’s theory states that the mind begins as a “blank slate”, and that the outcome of one’s character results directly from experience and sensation in developing ideas over time. He claims that all thoughts and ideas originate from “objects of sensation or reflection” (126), and all knowledge and reason is derived from the experience one undergoes. This theory contradicts Wilson’s theory in stating that “the mind furnishes the understanding with ideas of its own operations” (127), rather than furnishing the understanding based off of certain genes already prescribed to the mind prior to birth. Locke claims in his art article on the idea that any man could “examine his own thoughts (127)” and look into how he gained all his knowledge and understanding as a whole, and see it as none other than being a “collection of the objects of his senses or of the operations of his mind”. Therefore, Locke firmly believes there is no such thing as “innate behavioral genes” already prescribed to a person prior to having any experience or sensation whatsoever. However, I believe tha...
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...e answered. Contradicting opinions contribute to the ongoing debate of how far genetics really go (if at all) into determining full understanding and knowledge of human nature. I believe Wilson’s theory overrides Locke’s, in that inherited behavioral genes prescribed at birth are largely influential in determining the total outcome of behavior, and human nature as a whole.
Works Cited
Locke, John. “Of Ideas” Reading the World: Ideas That Matter. 2nd ed. Ed. Michael Austin. New York: Norton, 2010. 125-127. Print.
Powell, Kimberly. "Nature vs. Nurture - How Heredity and Environment Shape Who We Are.” "About Genealogy - Learn How to Research Your Family Tree.” About.com Guide, 19 July 2010. Web. 14 Sept. 2011.
Wilson, Edward O. “The Fitness of Human Nature” Reading the World: Ideas That Matter. 2nd ed. Ed. Michael Austin. New York: Norton, 2010. 144-149. Print.
The belief that the human state of mind is blank or else referred to as tabula rasa and knowledge is obtained through experience is an omnipresent idea throughout Locke’s writing An Essay Concerning Human Understanding. Written in the late 17th century, this philosophical work brings a ground-breaking thought on understanding the purpose of philosophy which focus should be placed on explaining thinking rather than creating systems (Goldie 32). As such, this writing embodied an essential tool in analyzing the role that philosophy had in the 17th century while reframing and redir...
John Locke, one of the most influential philosophers of his time, was born on August 29, 1632 in Wrington, a small village in England. His father, also named John, had been a lawyer as well as a military man who once served as a captain in the parliamentary army during the English civil war. Locke’s parents were both very devout Puritans and so to no surprise, Locke himself was raised with heavily Puritan beliefs. Because Locke’s father had many connections to the English government at the time of his growing up, John was given a rare gift at that time, an outstanding education.
Descartes argues in favor of human reasoning, involving innate ideas and subsequent deductions, as the sole avenue toward reaching this certain knowledge. On the other hand, Locke does not invest himself in the possibility of achieving any knowledge that can be claimed as a universal truth. Rather than this, Locke favored the idea that experience can lead individuals to knowledge that is most probable. Ultimately, these two philosophies cannot reconcile themselves together because of a core divergence on the question of the origins of knowledge. As Locke’s argument finds itself dependent on the concept of the mind as a “tabula rasa” at birth, this doctrine surpasses Descartes’ assertion of innate knowledge and, by extension, systematic doubt. For readers, the acceptance of the mind as a blank slate invariably leads to an acceptance of Locke’s reasoning above Descartes’. The argument propelling Locke’s essay and the improbability of innate knowledge favors the idea that there can be no universal truths and that, since individuals are born without any truths evident to them, they must depend entirely on sensory perception of the external world on which to base the beginnings of their knowledge. To support this, Locke considers how children gain knowledge of the world in small increments, as opposed to possessing an extensive knowledge from the time of their birth. Locke discusses that an individual with exposure solely to black and white would be absolutely unaware of scarlet or green, just like children are ignorant of the taste or texture of pineapples and oysters until they first taste
The discussion as to whether nature or nurture were the driving force shaping our cognitive abilities, was for a long time considered interminable. In the 18th century, Locke and the English empiricists claimed that individuals were born with a tabula rasa and only experience could establish mind, consciousness and the self. On the continent, Leibniz envisaged the self as a monad carrying with it some knowledge of a basic understanding of the world. Until the 1960s, this dispute was still very vivid in the behavioral sciences: B. F. Skinner's school of behaviorism in the USA postulated (as reflexology did earlier) general rules for all types of learning, neglecting innate differences or predispositions. K. Lorenz was one of the protagonists of ethology in Europe, focusing on the inherited aspects of behavior. It was Lorenz who ended the antagonistic view of behavior in showing that there indeed are innate differences and predispositions in behavior where only little learning occurs. Today, it is largely agreed upon that nature and nurture are intimately cooperating to bring about adaptive behaviors. Probably only in very few cases ontogenetic programs are not subjected to behavioral plasticity at all. Conversely, the possibility to acquire behavioral traits has to be genetically coded for.
defends the argument that humans are not solely defined by their nature or nurture, but by both. The
Locke feels that we do not have any innate ideas. Then the question arises of
“The term “nature versus nurture” is used to refer to a long-running scientific debate. The source of debate is the question of which has a greater influence on development: someone's innate characteristics provided by genetics, or someone's environment. In fact, the nature versus nurture debate has been largely termed obsolete by many researchers, because both innate characteristics and environment play a huge role in development, and they often intersect”. (Smith, 2010 p. 1)
The purpose of this academic piece is to critically discuss The Darwinist implication of the evolutionary psychological conception of human nature. Charles Darwin’s “natural selection” will be the main factor discussed as the theory of evolution was developed by him. Evolutionary psychology is the approach on human nature on the basis that human behavior is derived from biological factors and there are psychologists who claim that human behavior is not something one is born with but rather it is learned. According to Downes, S. M. (2010 fall edition) “Evolutionary psychology is one of the many biologically informed approaches to the study of human behavior”. This goes further to implicate that evolutionary psychology is virtually based on the claims of the human being a machine that can be programmed to do certain things and because it can be programmed it has systems in the body that allow such to happen for instance the nervous system which is the connection of the spinal cord and the brain and assists in voluntary and involuntary motor movements.
Evolutionary theory is developed from Darwin’s argument that “suggests that a process of natural selection leads to the survival of the fittest and the development of traits that enable a species to adept to its environment. “ Many have taken this a step further by saying that our genetic inheritance determines not only our physical traits but also certain personality traits and social behaviors. There is such a controversy over significant behaviors that unfold because many believe that we are already pre-programmed human species. It has also been argued that evolution is reflected in functioning and structure of the nervous system and that is has evolutionary factors that have a significant influence on everyday behavior. With what is being said means that if we follow the evolutionary theory, then it would be said that we are already pre-programmed from before birth to follow certain protocols in life. Whether it is from finding a mate or by getting a job. It also believed that this theory gives use cues from our own system to follow, providing us with certain aspects of life from our ancestors. By believing in this theory we can determine that the importance of heredity when influencing human behavior. Behavioral geneticists and evolutionary psychologists have both agreed that not only do genetic factors provide specific behaviors or traits but it also shows the limitations on the emergence of such traits or behaviors. What this means is that our genetics will determine how tall we will be to how ...
Abel, Donald C., ed. Theories of Human Nature: Classical and Contemporary Readings. New York: McGraw-Hill, 1992.
John Locke, Berkeley and Hume are all empiricist philosophers that believe in different things. They have things in common such as the three anchor points; The only source of genuine knowledge is sense experience, reason is an unreliable and inadequate route to knowledge unless it is grounded in the solid bedrock of sense experience and there is no evidence of innate ideas within the mind that are known from experience. The relationship between our thoughts and the world around us consisted of concepts which were developed from these philosophers. I have argued that Locke, Berkeley and Hume are three empiricists that have different believes.
John Locke’s Essay on Human Understanding his primary thesis is our ideas come from experience, that the human mind from birth is a blank slate. (Tabula Rasa) Only experience leaves an impression in our brain. “External objects impinge on our senses,” which interpret ate our perceptions of various objects. The senses fill the mind with content. Nothing can exist in the mind that was not first experienced by the senses. Dualism resembles Locke’s theory that your mind cannot perceive something that the senses already have or they come in through the minds reflection on its own operation. Locke classifies ideas as either simple or complex, simple ideas being the building blocks for complex ideas.
Although at first glance, Rene Descartes’ theory of innate ideas may not seem to have a significant place in the world of psychology, it has served and still does as a variable to consider when studying the origin of knowledge and instinctual behaviors. The theory suggests that ideas are formed from some sort of innate knowledge that is pre-written into an individual’s DNA. Many scientists may not consider it to be a helpful variable in their research because it tends to rule out room for active experimentation and leads to unanswered questions. However, even though Descartes’ theory is nothing more than a theory, it has been unable to completely prove false or null and will continue to be considered in the world of philosophy and psychology alike.
In 1874, Francis Galton said, “Nature is all that a man brings with him into the world; nurture is every influence that affects him after his birth”. The human body contains millions upon millions of cells and each of these cells contains hereditary information and DNA. However, there is no proof that the information carried in these genes predetermines the way in which we behave. I believe it is our life experiences and what we see and are told that shape the way in which we behave. Therefore, it appears to me that nurturing plays a far more governing and dominant role in a human being’s development rather than nature.
During the enlightenment era, rebellious scholars called philosophers brought new ideas on how to understand and envision the world from different views. Although, each philosopher had their own minds and ideas, they all wanted to improve society in their own unique ways. Two famous influential philosophers are Francis Bacon and John Locke. Locke who is an empiricism, he emphasizes on natural observations. Descartes being a rationalist focus more on innate reasons. However, when analyze the distinguished difference between both Locke and Descartes, it can be views towards the innate idea concepts, the logic proof god’s existence, and the inductive/deductive methods. This can be best demonstrate using the essays, “An Essay Concerning Human Understanding”