Personality nature or nurture essay

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Personality nature or nurture essay

Religiosity Eye color Twin and adoption studies have their methodological limits. For example, both are limited to the range of environments and genes which they sample.

Almost all of these studies are conducted in Western, first-world countries, and therefore cannot be extrapolated globally to include poorer, non-western populations. Additionally, both types of studies depend on particular assumptions, such as the equal environments assumption in the case of twin studies, and the lack of pre-adoptive effects in the case of adoption studies.

Since the definition of "nature" in this context is tied to "heritability", the definition of "nurture" has necessarily become very wide, including any type of causality that is not heritable.

The term has thus moved away from its original connotation of "cultural influences" to include all effects of the environment, including; indeed, a substantial source of environmental input Personality nature or nurture essay human nature may arise from stochastic variations in prenatal development and is thus in no sense of the term "cultural".

Please help improve this section or discuss this issue on the talk page. Individual development, even of highly heritable traits, such as eye color, depends on a range of environmental factors, from the other genes in the organism, to physical variables such as temperature, oxygen levels etc.

The variability of trait can be meaningfully spoken of as being due in certain proportions to genetic differences "nature"or environments "nurture". For highly penetrant Mendelian genetic disorders such as Huntington's disease virtually all the incidence of the disease is due to genetic differences.

Huntington's animal models live much longer or shorter lives depending on how they are cared for[ citation needed ]. At the other extreme, traits such as native language are environmentally determined: At a molecular level, genes interact with signals from other genes and from the environment.

While there are many thousands of single-gene-locus traits, so-called complex traits are due to the additive effects of many often hundreds of small gene effects. A good example of this is height, where variance appears to be spread across many hundreds of loci. The "two buckets" view of heritability.

More realistic "homogenous mudpie" view of heritability. Steven Pinker likewise described several examples: But traits that reflect the underlying talents and temperaments—how proficient with language a person is, how religious, how liberal or conservative—are partially heritable.

When traits are determined by a complex interaction of genotype and environment it is possible to measure the heritability of a trait within a population. However, many non-scientists who encounter a report of a trait having a certain percentage heritability imagine non-interactional, additive contributions of genes and environment to the trait.

As an analogy, some laypeople may think of the degree of a trait being made up of two "buckets," genes and environment, each able to hold a certain capacity of the trait.

But even for intermediate heritabilities, a trait is always shaped by both genetic dispositions and the environments in which people develop, merely with greater and lesser plasticities associated with these heritability measures.

Heritability measures always refer to the degree of variation between individuals in a population. That is, as these statistics cannot be applied at the level of the individual, it would be incorrect to say that while the heritability index of personality is about 0.

To help to understand this, imagine that all humans were genetic clones. The heritability index for all traits would be zero all variability between clonal individuals must be due to environmental factors.

And, contrary to erroneous interpretations of the heritability index, as societies become more egalitarian everyone has more similar experiences the heritability index goes up as environments become more similar, variability between individuals is due more to genetic factors.

Personality nature or nurture essay

One should also take into account the fact that the variables of heritability and environmentality are not precise and vary within a chosen population and across cultures.

It would be more accurate to state that the degree of heritability and environmentality is measured in its reference to a particular phenotype in a chosen group of a population in a given period of time. The accuracy of the calculations is further hindered by the number of coefficients taken into consideration, age being one such variable.

The display of the influence of heritability and environmentality differs drastically across age groups: Some have pointed out that environmental inputs affect the expression of genes [16] see the article on epigenetics.

This is one explanation of how environment can influence the extent to which a genetic disposition will actually manifest.Principles of Personal Transformation by WingMakers. Note: For a two-page summary of this inspiring seven-page WingMakers essay, click here.

Personality Theory and Research: Suggested readings

Each individual on Earth is exploring in a physical body new ways of experiencing life. 41 thoughts on “ Nature vs. nurture: Identical Twins Raised Apart ” tinkerbell March 4, at am. this is the most wierdest thing i have ever heard of in my intire life.

News, sports, investing, and political commentary.

twins should be able to stay with his or her twin not raised apart. thats just sad in so many ways i cant tell you haow i feel about that cause i feel so 50 50 about it.

its so hard to tell you about it. twins. In , I obtained the first Transpluto ephemeris which was published in Germany by the highly respected astrologer/scientist, Theodor Landscheidt. Relying .

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The nature versus vs. nurture debate or controversy The nature vs nurture debate is one of the most enduring in the field of psychology. How far are human behaviors, ideas, and feelings, INNATE and how far are they all LEARNED?

These issues are at the center of the ongoing nature versus nurture . Nature vs Nurture is an ongoing debate in human development.

This sample essay looks at both sides as well as the two working in conjunction with one another.4/5(5). Published: Tue, 03 Oct Personality Development: Nature vs.

Nurture. Many researchers have tried to unravel the mystery of how personality is developed. It .

Nature versus nurture - Wikipedia