Traits- Nature vs. Nurture

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While reading chapter fourteen in our course text book, I came across some facts that I thought to be very interesting. The University of Minnesota conducted a very interesting investigation over a span of two decades. This study looked at about 130 pairs of twins that had been separated at birth. The results that they obtained shocked me.
The pairs of twins that shocked me most were the male identical twins who had both been named Jim by their adoptive parents. This is not the only strange thing, they also constructed similar looking tree houses in their backyards, had dogs named "Toy", and both married twice to women named Linda and Betty. Is this just some weird coincidence? or does it have a deeper meaning behind it?
I believe that this is no coincidence. What are the chances? This is not the only pair of twins they found odd coincidences between. Beyond this pair, the book discusses many other curious similarities between reared apart twins. So does this tell us that surroundings shared between twins plays a more decreased role among twins than we originally thought? When comparing the traits of twins reared together and twins reared apart, the correlation doesn't differ much. So this does confirm that shared environment has little to nothing to do with adult personality. However, this doesn't mean that it has no impact on personalities of children. Children raised in similar atmospheres may have like traits, but as they grow older, these traits generally weaken.
So does this infer that some traits are genetic? I believe so. I believe that some traits are influenced by genetics and certain environments and situations cause these traits to surface and develop our personalities.

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This page contains a single entry by boli0119 published on November 21, 2011 12:02 AM.

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