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Essay about Personality Differences: African Americans vs. Caucasians

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Psychological Differences between African-American and Caucasian Individuals: An Endless Controversy Alana Carran Psychology 308K 7980 Semester 1209 Alana Carran Dawn K. Lewis Psychology 308K 15 December 2012 Psychological Differences between African-American and Caucasian Individuals: An Endless Controversy Introduction Investigating the psychological differences between African-Americans and their Caucasian counterparts has been fraught with contention, an endless debate revolving around whether or not the lower IQ scores of African-Americans to Caucasians is to be attributed to either environmental or biological factors, or both. Caucasians and African-Americans endure a number of both physical and psychological …show more content…

After applying sampling weights and adjusting for age, body fat, alcohol, smoking and activity, no significant difference in testosterone levels between blacks and whites could be determined, with geometric means of 5.29 ng and 5.11 ng, respectively (Rohrmann, 2007). Therefore, testosterone, according to this study, is not the element responsible for the perceived impulsive behavior of African-Americans. Another study attributes blame to the monoamine oxidase A (MAOA) as cause for increased impulsiveness in African-Americans. The MAOA enzyme metabolizes norepinephrine, serotonin, and dopamine at the synapse, and a decrease in MAOA leads to increased agitation, aggressiveness and impulsiveness; individuals with this dysfunctional gene have a permanent chemical imbalance in their brain that causes them to behave in a more agitated manner. About .5% of whites have this MAOA dysfunction, while 4.7% of blacks have it (Rohrmann, 2007). This difference in brain chemistry encourage racial distinctions between African-Americans and Caucasians, with African-Americans, on the average, having a higher risk of a dysfunctional brain chemical that encourages impulsive behavior and violence, where this does not exist to the same degree in the average Caucasian. ` This “dysfunction,” however, is often called the “warrior gene.” Its existence may be a due to the desire to defend and protect, which has manifested itself

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