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Prior to beginning work on this discussion please read the Hurley (2013) Trait vs. Fate and Weaver, et al. (2004) Epigenetic Programming by Maternal Behavior articles and review the Webster "The Great Rat Mother Switcheroo" online article. The recommended resources for this week also provide more information on these topics.
In this week's required resources, we have learned that while our genes have a lot to say about who we are, environmental factors, particularly parental behavior, can shape the behavior of offspring on a biochemical level. Using the assigned Hurley and Weaver et al. articles, briefly describe the research that has been done with rat mothers to illustrate this phenomenon. In your initial post of a minimum of 350 words, explain the implications of the research on parental behavior and environmental factors as they relate to human personality development. Describe how this research data might be used to explain unhealthy personality traits.
Explain how data correlates to Winnicot's concept of the "Good Enough Mother" found. Be sure to cite the Hurley and Weaver, et al. articles in your initial post.
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It is certainly true that epigenetic factors have an impact on the personality and behavior. From the findings of Hurley et al. (2013) and Weaver et al. (2004), the role of DNA methylation was discovered which have the potential of making individual calmer or aggressive based on happier or aggressive events of life.
Furthermore, it was also elucidated that such traits use to be inherited from parents to their offspring.
Licking of mother rat to their offspring have an impact in terms of modulating the epigenetic expression of genes in the brain. Weaver et al. found that parenting behavior induces triggering of glucocorticoid receptor gene promoter in the brain (hippocampus region).
This causes a higher increase in DNA methyl groups, which were further, persist during adulthood phase.