Evolution of Human Intelligence: A Historical Perspective

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At the beginning, the world was created and there were different species occupying it. There were plants, animals, and human beings. They were all creatures, but their constitutions were different at some points. Plants did not have the ability to think, nor a brain to accomplish cognitive actions while human beings and animals had. But, there were still a difference between humans and animals.They all had brain to complete cognitive actions but humans especially had the ability to think, to make decisions and to complete more sophisticated mental processes. They were intelligent beings, and possessed intelligence. From that time to now, humans have experimented several transformations of their intelligence. So, we now have the notion of intelligence …show more content…

An IQ is a score derived from tests that have the purpose to asses humans ' intelligence. The test that allows us to evaluate people 's intelligence in order to understand their behavior and even further to predict future results that are more likely to occur such as their future income, educational achievement and performance at work. The average, median score of IQ is 100, from it we can either add or subtract 15 IQ points to find other standard deviations. Scores are obtained by dividing the mental age by the chronological age then multiplying the result by 100. So, that is why the score 100 indicates the average and is taken as the norm. Thus, Michael W. Corrigan in Debuking ADHD showed how IQ is normally distributed and mentioned that " A few of us are geniuses (scores above 145), others are mentally challenged (scores below 70), and most of us are average-or the norm." (p.10). Basically, the word intelligence is the intellectual capacity of humans that gives them the ability to accomplish cognitive actions, to learn, to communicate to each other by spoken or gestural languages, to reason, and to think. It is the driving force behind the body that gives commands in association with the brain. All our actions have roots in our intelligence, thus our behavior is also in part the result of our intelligence. Usually, the way people choose to …show more content…

Nobody can be considered as inferior or silly. The world has been going through some critical periods when people could not make it to school. We all know that the basic way to develop one 's intelligence is to go to school and to enhance one 's intellectual skills. School is the best establishment that promotes learning. There, people can interact and exchange their ideas which helps them to know how to live with others in the society. There we develop our initial intelligence, the one we are born with, and we have to develop until death. Being directly related to our parents, by inheritance and more affected by the environment we are raised in, that intelligence is more likely to be different depending on the circumstances. However, our abilities are not affected by that. As intelligence quotient scores are universally evaluated, the basis of those results are the same for everybody, whatever could be their origins. As a matter of fact, we do not all focus our intelligence in one universal domain, we all apply it in different domains. Some people can be intelligent in catching fish whereas others in doing mathematics. It is all about the importance attached to our needs. The expert fish catcher may be living in a place where catching fish is the only way to survive from hunger while the mathematician can be living in a place where doing mathematics is very important to get a job

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