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Phineas Gage Case

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Should criminals with brain defects be held legally responsible for their criminal actions? Advances in what scientist is able to learn about the brain through imaging, has changed how the legal system thinks about this query. We know now from various types of advancements in brain scan imaging that the brain of a psychopath looks different than the brain of a non-psychopathic brain. These defects are thought to be responsible for the personality and actions of the psychopath and some believe these defects are just as responsible for the criminal actions of the psychopath as well. However, while behavioral science may look at the brain of the psychopath and seek explanations for the antisocial and aggressive personality traits-in …show more content…

The injury sent a three-and-a-half foot-long tamping iron into his head, shattering his upper jaw and destroying his left ventromedial frontal cortex. Phineas Gage recovered from his brain injury, but his personality underwent a dramatic change described by those who knew him as a Dr. Jekyll/Mr. Hyde transformation. In more modern times we have seen similar results from brain injuries with Antonio Damasio, who had his left and right orbit and lower mesial cortices, including the prefrontal area, removed due to cancer. While he recovered from the surgery, his personality, like Phineas Gage’s underwent a dramatic change and his ability to morally judge situations became poor leading to a demise in his life and relationships. These cases have shown that damage to the frontal lobe changes how a person thinks and acts. We have seen that deficits in the frontal lobe are also commonly seen in people who are depressed, who experience chronic stress, in suicide victims, sociopaths and in incarcerated criminals. Since we can see that these brain changes affect personality and even life choices, it is not that far fetched to think that these same brain defects can lead to criminal behavior. For example, the prefrontal cortex is an area of the brain that acts to receive input from other areas of the brain and uses this information to make decisions. If this area is …show more content…

What we do not understand from these case studies, however, is why the same brain deficits do not lead to the same actions from people affected. Phineas Gage and Antonio Damasio became unlikable people, but neither became criminals. Yet, our former Marine went on an uncharacteristic killing spree explained by his brain lesion. These case studies make scientist question if the ability to exercise self-control is also damaged when these areas of the brain are defects. While the criminal justice system was once black or white- guilty or innocent there are shades of gray because of our new ability to see the damaged areas of the brain and better understand how this factor can impact criminality. Of the 60-70% of defendants found not guilty by reason of insanity, the majority was diagnosed with a mental illness, but 10% were found NGRI because of their brain

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