The second camp sitting on the other side of the fence is the advocates for nurture.
Here, nurture represents our surrounding: parents, class-mates, colleagues, our value system and our society as a whole.
Twins (monozygotes) are of extraordinary importance when studying heredity because they share identical copies of genes.
An interesting study on twin brothers who were separated at birth and raised in different countries by respective adoptive parents showed that they both kept their lives neat, ‘neat to the point of pathology.’ Their clothes were preened, appointments met precisely on time.
She insisted on every little thing returned to its proper place,… I’m reacting to my mother, who was an absolute slob.”, (Neubrauer, Peter P 21) In this example, we see a natural preference based on heredity.
Both twins blamed their mothers for their behaviors, while none of the mothers required such neatness.
When asked about the reason they felt to be so clean, the first one replied ” My mother.
When I was growing up she always kept the house perfectly ordered. ” When his twin brother was asked the same question he answered “The reason is quite simple.
” As one grows from infancy to adulthood, social experience plays a critical and constant role in the regulation of growth , behavior and emotions,” (Glick, Marion E.) Here we are told that social deprivation at different stages of development can lead to abnormalities in the stress hormone system, which may produce severe and long-lasting physical, neural and psychological consequences.
It is also interesting to consider the gender differences due to the change in environment.