Nature vs. Nurture.. could there be any other options?

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For this blog, I looked up recent articles on the "nature vs. nurture" debate and came across one that I found particularly interesting. Now that we have realized that both nature and nurture play important roles, there may be a third option called the "differential susceptibility hypothesis." This hypothesis proposes that one's genes may affect their sensitivity to their environment.

There is a gene that is related to the amount of serotonin being recycled in our brains. Those that have the short variation of this gene have shown "associations with a higher incidence of a variety of mood disorders, slower responses to antidepressant medication, and a variety of different sensitivities in their mental health."

In a study testing this hypothesis, children's gene types were determined and they put into three groups at random. Each group was tested in different ways on the child's sensitivity towards their parents positive/negative affect. In all three cases, children with the short gene variation were more sensitive to the parenting and environment, whereas children with the long gene variation weren't affected nearly as much.

I have always thought that nature and nurture separately shaped us in different ways, but I never thought that one could play off of the other. After reading this article, it seems like depending on which type of gene (short or long) we have, it may determine whether we have been affected more by our genes than our environment or if it is the other way around.

Sources:
- http://theconversation.edu.au/nature-v-nurture-score-one-all-3697
- http://www.sodahead.com/living/do-you-did-you-live-up-to-your-parents-expectations/

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one's genes may affect their sensitivity to their environment. Interesting claim, and good use of the ruling out rival hypotheses scientific thinking principle. However, after reading your article, it seems like depending on which type of gene (short or long) we have, it may determine whether we have been affected more by our genes than our environment or if it is the other way around. Is it means that it still gene have a dominant role in shaping our personality, behavior that kind of things? Maybe it is right, because it make researchers feel difficult to determine nature or nurture, it need first determine what kind gene we bring, than use the differential susceptibility hypothesis to make a conclusion.

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This page contains a single entry by bergd012 published on February 5, 2012 4:40 PM.

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