Pretend that you are an American colonist living in the time period we discussed in class. Write a letter to a friend or family member who still lives back home in Great Britain. Your letter should follow standard letter format. It needs to include at least 2 facts or events from the American Revolution. Facts should go in order and the date of your letter should be consistent with those facts. (Ex. Don’t date your letter for 1775 if you talk about the Declaration of Independence which happened in 1776.) It also needs to be creative, emotional, and entertaining. ___/10 pts – 2 facts or events
___/10 pts – Order of events and date of letter are accurate ___/10 pts – Correct friendly letter format
___/10 pts – Creativity and emotion

answer; i believe that the correct answer is rapid and subsequently slow down;

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.

disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.