Last Updated on 13/08/2024 by wccexam Desk
It is being said about the accused who raped and murdered a trainee doctor in Kolkata’s RG Kar Medical College that he was a habitual criminal, who was also addicted to drinking alcohol and fighting and watching porn. An even more brutal case came from Bareilly, where a serial killer killed several middle-aged women. In this, the killer’s mind works differently from common people or those who suddenly commit murder in a fit of anger.
Even science doesn’t have all the answers
The term criminal mind was first written in 1928. Mentioning it in the Journal of Abnormal and Social Psychology, it was written that people with criminal minds are the most dangerous. They are a threat not to one or two people but to the entire humanity. It has been almost 100 years since this term was coined, but it still remains a challenge for neuroscientists and psychologists. Even after all the progress, science is confused about whether habitual killers can be understood in advance.
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According to experts, one cannot tell by looking at a few symptoms who can become a dreaded killer in the future. Sometimes a person does something wrong in impulse. Later, in an attempt to hide it, he does more wrong. This is not a cold-blooded murder. To identify such people, psychological theories were also explored along with brain scans.
This part of the brain remains separate
In the early nineties, neurocriminologist Adrian Ryan went to American prisons to study cold-blooded murderers. He started in California. This state was notorious for such murders. More than 40 prisoners underwent PET (positron emission tomography) so that the biochemical function inside the brain could be understood. The scan showed that many parts of the brain of the murderers were shrunken. Especially the pre-frontal cortex. Let us tell you that this is the part of the brain that teaches self-control. This pre-frontal was seen to be very small in those with a murderous mind.
When the study came out, instead of praising the scientist, people started calling him crazy. Much later, a book named The Anatomy of Violence was published, in which Dr. Ryan had written about his 35 years of experience on the brains of criminals.
Why does this shrinkage occur in the prefrontal cortex of the brain
According to scientists, there can be many reasons for this, which are also genetic, and sometimes a severe head injury is also the reason. This can also happen to those who have suffered abuse in childhood. It has often been seen that people who have lived a difficult life, especially those who have seen complications in relationships, have a different brain. However, scientists also believe that it is not necessary that people with a shrunken cortex are criminals.
There are some psychological traits that make such people different. For example, these people are usually extremely self-obsessed. They do not care about anyone except themselves. If such people get hurt, they can commit murder with complete planning. They do not even feel any guilt. Usually, even criminals get scared after committing a crime, but a cold-blooded murderer confesses his crime very calmly.
What goes on in the mind when you commit murder?
When someone commits such a crime in a fit of rage, he does not feel any fear at that moment. Instead, he feels powerful and in control. The happiness hormones dopamine and adrenaline increase in his brain. These provoke him to commit murder. But this surge subsides in a short while. Then fear and shame take its place.
One category is that of defensive dismemberment. This is an attempt to hide the mistake, which is done by scared people. In this, the criminal does something wrong in anger, but then, out of fear, he starts destroying the evidence.
Missing genes are also responsible to some extent
There is also a special gene, whose missing can turn any person into a murderer. It is called MAOA (monoamine oxidase A). It controls neurotransmitter molecules like serotonin and dopamine. These are directly related to mood, emotions, sleep and hunger. If these go awry, it does not take long for a person to go awry. In such a situation, if the gene that controls these goes missing or is insufficient, the result can be dangerous.
This is why MAOA is also called warrior gene or serial killer gene.
Men are more at risk
Men are more at risk of this missing gene, while women work as its carrier, i.e., carry it from one generation to the next. In most cases, the lack of this gene is not detected amidst the love of the family and good food. In homes where parents are in an abusive relationship, where there is fighting or abuse, if the children of those homes have less of this gene, then their anger goes out of control. These children start showing criminal behavior as they grow up, and can even commit murder in the future.
Source (PTI) (NDTV) (HINDUSTANTIMES)