The Brain Of A Serial Killer Essay

Many people around the world wonder about serial killers and what goes through their mind. Serial killers have a motive to kill other people and sometimes, it can be the ones that they have once loved. Serial killers live their whole life wanting to kill others and ruin other people’s lives.

There are many different signs of serial killers that are able to warn people. "A criminal's ears," he wrote, "are often of a large size. The nose is frequently upturned or of a flattened character in thieves. In murderers it is often aquiline like the beak of a bird of prey" (Lombroso). When looking at a serial killer, the ears and nose are bigger. This can help people for the future when they are in public and it can keep them out of danger. “Serial

According to BBC News, “There was reduced activity in the pre-frontal cortex, the area of the brain which controls emotional impulses, and over activation of the amygdala, the area which generates our emotions” (Lombroso). This is showing that in the brains of serial killers, there was less activity in the prefrontal cortex. In this part of the brain, it generates people’s emotions and controls the emotion pulses. Misa Kori says, “About 30% of men have this so-called warrior gene, but whether the gene is triggered or not depends crucially on what happens to you in childhood.” This shows that more serial killers are men and they have a warrior gene. This gene is more common in men than it is in women. “In a normal person, the left side of the brain has more activity than the right-side.” This is showing that the left side of a human brain has more activity than the right side of the brain. “The brain of a serial killer also has lack of activity in the prefrontal cortex that is responsible for personality and cognitive behaviors” (Kori). The prefrontal cortex is also responsible for personality and cognitive behaviors. The prefrontal cortex reacts, processes, and understands, then makes decisions and produces

“Past relationships and experiences with family, friends and loved ones have a huge bearing on the person that we are today. If we have always been treated in a certain way, we end up becoming that person” (Markman). This is showing that what has happened to serial killers in the past has shaped the person that they are today. If they have been treated in a bad way, they get used to that and end up becoming that person. Also, serial killers get into the same routine day in and day out. Art Markman states, “Routine behaviours and experiences become like a program that we follow day in, day out. People stop using their mind and become trapped in continual cycles of process and emotion.” Doing the same behaviors and experiences, every day, over and over again, makes it a routine throughout your life. People’s minds get so used to the routine and they are not able to get out of it. It can also make them feel pleasure while doing the same routine and can make them happy. “He may be numb to ‘everyday’ sensations such as love, affection or joyfulness, therefore, only things like murder and sexual assault make him feel anything.” This means that they might not be able to feel anything other than murder or sexual assault and it is the things that makes them the happiest. They get used to other things and doing things outside of the ordinary makes them feel something. “Hormones and chemicals are released in