Recent studies find more in human biological system that genes are related to people’s behavior. McInerney (2001) shows, many researchers believe that genetics factors determine how someone will act and think in his or her life. Animal and human are born with specific character linked with the genetic information in the genes. It shapes each individual trait exclusively including the performance in social, interaction, intelligence, and adaptability to the surrounding community.

Behavior may change, he states, as a person encounters “alterations in biological structures or processes”, mechanically or chemically. For instance, a person’s gentle personality may change dramatically after an accident that causes brain injury, therefore chemical treatment or

However, this cannot be concluded from one side view. Naturally there is none of the factor gives impact to personality change stronger than the other one. Psychologist Robert Plomin as cited by Azar (1997) says, both nature and nurture influence someone’s personality, in other words, there is an equal portion of genetic factors and environmental factors in determining personality. The genetics factors only “give half of the variance of most traits”, and environment takes the rest of it.

medications – or even gene modification – is necessary to control the disorder and fix the problem.

Here is when environment takes part. An observation shows that environment, like in a case of therapy or set establishing of the nurture, can facilitate a person to conduct a personality change. Setting free a personality into a proper environment most likely brings the person into a situation, which he feels exposed and able to express what the real personality is.

Adrien Raine, University of Southern California researcher, as cited by Cosgrove (2000) explains that prefrontal cortex brain damage that is important in determining one’s antisocial behavior may present in people may bring the disorder from the birth. It is usually assumed t

Some topics in this essay:
Southern California, Personality Permanent, According Glendlin, Robert Plomin, personality change, nature nurture, environment takes, human behavior, accident causes, genetic factor, correlation occur, cosgrove 2000, genetics factors,