10/01/2023
Serial Killer Genes = MAOA & CDH13?
Monoamine oxidase A (MAOA) has often been labeled the “warrior gene” for its association with higher levels of aggression in response to provocation. According to certain studies, individuals with low levels of the gene are more likely to respond aggressively when they think they have been wronged.
Which is a gene linked to high levels of aggression in its low-activity form.
CDH13 also contributes to maintaining excitatory and inhibitory functions. It has been suggested that disturbed neural connectivity is the main pathophysiological mechanism underlying behavioural problems in attention-deficit/hyperactivity disorder (ADHD), a disorder whose core symptom is losing impulse control. Thus, it is strongly associated with violent criminality.
It’s estimated that about one-third of the population of Western civilisation carries the low-activity form of the MAOA gene, however, the population that are serial killers is far less than 1%.
Not Just Genes Alone
Common traits in serial killers include sensation seeking, a lack of remorse or guilt, impulsivity, a need for control, and predatory behaviour. All of these character traits are consistent with psychopathic personality disorder.
Many studies have suggested, there is a myriad of environmental factors that can play a pivotal role in the formation of a homicidal mind. Some factors that have been suggested are an estranged father, low socioeconomic status, lack of maternal sensitivity, poor living conditions, childhood abuse, and many others. However, there are serial killers that do not come from these backgrounds and there are multitudes of people that come from similar backgrounds that do not go on to become serial killers.
The question still remains: Are serial killers born with a desire to kill, or is it something that they develop over the course of their lives? Nurture or nature? Well, it seems that both genetics and conditioning may play a role in the creation of a serial murderer.
The conditions that result in a serial killer are complex and varied.