You think you know you until you donât.
The frontal lobe of the mammalian brain is generally responsible for personality expression, complex cognitive behavior, language, and decision-making. The frontal lobes are extremely vulnerable to injury due to their location at the front of the cranium. Damage in this area may cause a change in personality, inconsistent facial expressions, and blurred judgment skills. Years of studying abnormal brain injuries, such as in the case of Phineas Gage (a notable TBI patient), and other various medical problems have led many previously opposed researchers to believe that biology plays a larger role in personality and the âselfâ than once thought. We are currently faced with many theories attempting to explain the phenomena. It is still somewhat of an unpopular belief that biology is the ultimate basis of personality. However, a mind-bending question once uttered by the famous Canadian novelist, Doug Coupland, is becoming difficult to ignore; where does personality end and brain damage begin?
It is important to note that I am not stating personality is something that is passed down from your parents. The difference is that who you are, or who you think you are, is a creation of your brain that has been set in place in order to deal with the environment around you. As you grow older and are faced with diverse experiences, your âselfâ is then actively transformed in order to adapt to given situations.
Some neuroscientists, such as Dr. Bruce Hood, director of Bristol Cognitive Development Centre at the University of Bristol, suggest that the notion of a core self is false and that we are just a multitude of competing urges and impulses. He states that the self is an âinescapable experienceâ we need for interacting with others and the world and argues that personality is but one of many functions of the brain (2012). Assuming that Dr. Hoodâs theory is scientifically proven and that the belief that personality and self has a biological basis is widely accepted, what sort of significance should we expect from the understanding in regards to the future?
Assuming a stronger correlation is discovered, we can expect to see a fall of dualistic ideology. The separation of mind and brain would be null. This would be a remarkable change in thought as we would be forced to revisit what we believed we understood about individualism and people. New questions would emerge that challenge how we look at ourselves. If everything that we know and have experienced has a biological basis, can we then not physically remove or alter microscopic parts of the brain to create or destroy memories, thoughts, habits, and even personality? If you or anyone could wake up with a different identity and completely new set of motives, desires, passions, and memory, after a quick surgery, then what value remains of individualism?
Personality altering surgeries could be used as forms of rehabilitation for the mentally ill and to completely reconstruct the minds of criminals. It could be used for breaking substance addictions and sexual disorders. This may even pave the road for personality, or âselfâ, eugenics. Now whether that is overall good or bad is not for me to say.