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Running head: DIFFERENT SIDES OF THE SAME COIN 1 Different Side of the Same Coin Keona Waller Brookline College February 21, 2017
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Running head: DIFFERENT SIDES TO THE SAME COIN 1 People are always so quick to place others into specific category, like introvert and extrovert, but are there any distinct differences between the two personalities, or are they one in the same. What are the physical differences in an introvert vs. an extrovert? Can a person contain aspects of both, an introverted and extroverted personality? Could being an introvert vs. an extrovert have an impact on one’s physical health, and wellbeing? The science behind introverts and extroverts In the 1960s, psychologist Hans Esysenck made the influential proposal that extroverts were defined by having a chronically lower level of arousal. Esysenck theory was that extroverts have just a slightly lower basic rate of arousal. The effect is that they need to work a little harder to get themselves up to the level others find normal, and pleasant without doing anything. Hence the need for company, seeking out novel experiences, and risk. Conversely, highly introverted individuals find themselves overstimulated by things others might find merely pleasantly exciting, and engaging. Hence, they seek out quiet conversations about important topics, solitary pursuits, and predictable environments. (Stafford 2013) This notion paved the way for scientist to delve a little deeper into the mind, to help understand what defines these two different personalities. In 2005, researchers concluded in a study that it all might be linked to dopamine-; the reward system in the brain of extroverts responded differently than those of introverts. In the study, researchers used a brain scanner to examine responses from participants who were doing a gambling task. They found that when gambling brought positive results, the extroverts exhibited
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