Trauma to the brain: The frontal lobes are considered our emotional control center and home to our personality. there is no other part of the brain where lesions can cause such a wide variety of symptoms. the frontal lobes are involved in motor function, problem solving, spontaneity, memory, language, initiation, judgement, impulse control, and social and sexual behavior. The frontal lobes are extremely vulnerable to injury due to their location at the front of the cranium, proximity to the sphenoid wing and their large size. There are important asymmetrical differences in the frontal lobes. the left frontal lobe is involved in controlling language related movement, whereas the right frontal lobe plays a role in non-verbal abilities.
Some researchers emphasize that this rule is not absolute and that with many people, both lobes are involved in nearly all behavior. One of the most common effects of frontal lobe damage can be a dramatic change I social behavior. A person’s personality can undergo significant changes after an injury to the frontal lobes, especially when both lobes are involved.