Biological Perspectives of Personality

The biological process of a person plays a big part on the structure of an individual’s personality. The genes play a big part of how a person is, due to the inheritance already in their DNA by their family members. However health factors and environment influences on the individual’s personality may also contribute in the changes of their development.   One of the most important areas in the human body for a human to function is the brain and the spinal cord. Together they control the body functions including the way people think and feel.

Professionals have studied that twins separated at birth and later on reunited have encountered similarities in their personality supporting that genes do have a major effect on personality. There is a story of 2 twins name Jim Lewis and Jim Springer who met after 39 years of being separated at birth. They were adopted by separate families in the state of Ohio. “Both had been named James by their adoptive parents, both had married twice; first to women named Linda and second to women named Betty. Both had children, including sons named James Allan. Both had at one time owned dogs named Toy.   Both had high blood pressure, both had experienced what they thought were heart attacks, both had undergone vasectomies, and both suffered from migraine headaches. They even used the same words to describe these headaches. Both chain-smoked, both liked beer, both had woodworking workshops in their garages. Both drove Chevys, both had served as Sheriff's deputies in nearby Ohio counties. They had even vacationed on the same beach in the Florida Gulf Coast. Both lived in the only house on their block (from Smithsonian, 1980).

The frontal lobe of the brain is in charge of the judgment, memory, language, motor function, solving problems, sexual behavior, spontaneity and socialization. An individual that has an accident hurting their brain specifically the frontal lobe or if they have health risk factors like a tumor or to much intake of...