The frontal lobe section of your brain is known as your "emotional center." It not only controls emotion, it is also where your personality is formed. This area plays a role in memory, controlling movement and judgment, as well as social and sexual behavior. If this area becomes injured, it can affect many functions in the body. The type and severity of symptoms you develop depend on exactly which section of the frontal lobe is injured.
After an injury to the frontal lobe, your personality and social behavior may change drastically. You may interact differently with others. You may become impulsive, irritable, aggressive, passive or withdrawn. Depression or a lack of interest in activities can be another sign You may lose the ability to judge what behaviors are or are not socially inappropriate.
If an injury has occurred to the cells that control movement, you may develop weakness in your arms, hands, fingers or other areas in your body. You may develop difficulty with fine motor skills that involve your hands, such as writing and buttoning your shirt. In severe cases, you may develop paralysis in different areas of your body.
You may also have difficulty with concentration, memory, problem solving and the ability to express yourself through speech. Planning out and completing simple daily tasks may take more time or become unmanageable. You may develop a tendency to become fixated on a word or task or constantly repeat yourself.