Antisocial personality disorder (ASPD) is a long-term disorder that also affects a person’s entire life, the decisions they make, and the social environment they build with others. Antisocial disorder is a complex psychiatric condition. Environmental influences, genetic and biological factors, and brain anatomy can all be a combination contributing to this disorder. So, do you know what kinds of things happen in the brains of people who have these disorders?
First of all, we have to look at what ASPD is and how individuals behave.
What Is Antisocial Personality Disorder And Its Symptoms?
A person with ASPD generally has an egocentric structure, and people trying to cope with this disorder are often seen to exhibit some level of aggression. They tend to violate social rules and norms, and they lack empathy, meaning they cannot understand the feelings of others, cannot consider them, and have difficulty forming emotional bonds. They do not feel guilt for inappropriate behavior directed at others. This situation often drives them toward criminal behavior.
To be diagnosed, an individual must be at least 18 years old and have shown symptoms of Conduct Disorder in early and middle childhood. According to DSM-5, at least three of the seven criteria must be met for a diagnosis (Mohan L., Jul 10, 2023). Some of these criteria are as follows:
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Lawlessness (repeatedly engaging in behaviors that lead to arrest)
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Deceitfulness (constantly lying, deceiving, and manipulating others)
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Endangering one’s own and others’ safety (dangerous driving, indifference in situations where others may be harmed, etc.) (Association, 2013)
We have seen what antisocial behavior might look like, but what exactly influences these individuals?
Social And Environmental Factors
People with ASPD are influenced by environmental factors, especially during childhood. A person’s family, school, community, and media exposure are very important in shaping behavior. According to some studies, a person’s family background is important both genetically and through observation and lived trauma. Sexual, physical, and emotional abuse experienced in childhood is significant. Furthermore, parental neglect can lead to a lack of awareness of early symptoms, making treatment more difficult in adulthood (Wong, 2023).
In social life, individuals with ASPD often have a lower quality of life because fewer people want to associate with them. Their ability to find employment may decrease, and due to a lack of empathy, they struggle to connect with others, ultimately having no real friends (Zilong Chen, Yinuo Xing, Zehui Zhang, 2021).
In other words, individuals with antisocial personality disorder are often affected by traumatic events at a young age. If families observe early symptoms and take precautions, they may, to some extent, prevent future harmful behaviors, as these individuals are quite prone to criminal activity.
Finally, let’s talk about what is happening in the brain and what drives these behaviors.
Brain Structure And Function
Neurobiological findings associated with ASPD are not specific to a single brain region but rather involve structural and functional alterations in fronto-limbic circuits, which are responsible for emotion regulation, impulse control, and moral decision-making.
One of the most significant findings concerns the prefrontal cortex. This region contains gray matter that is crucial for control, planning, evaluating consequences, and reacting to fear. Dysfunction in this area is thought to contribute to impulsivity, poor decision-making, and disregard for social norms (Zilong Chen, Yinuo Xing, Zehui Zhang, 2021).
Certain neurochemical processes are also associated with ASPD. Research highlights the role of the MAOA enzyme, which breaks down neurotransmitters such as serotonin, epinephrine, dopamine, and noradrenaline. When serotonin levels decrease, individuals may experience reduced empathy, shame, and guilt. Dopamine levels are also important. The dopamine transporter regulates dopamine levels in the brain and plays a role in decision-making. Low dopamine levels have been associated with poor decision-making (Wong, 2023).
However, it is important to remember that these findings do not prove that ASPD is simply a “brain disease.” It is a complex condition shaped by multiple interacting factors.
Conclusion
In summary, individuals with ASPD are influenced by environmental, genetic, social, and biological factors. They struggle to adapt to their environment and life circumstances. Forming emotional bonds is very difficult for them. While we cannot say that their behaviors are entirely due to brain abnormalities, research suggests that certain neurological differences contribute to aspects of their behavior. Unfortunately, current research shows that available treatments are not fully effective in completely curing personality disorders, although early intervention may reduce risk and improve outcomes.
References
Association, A. P. (2013). Diagnostic and Statistical Manual of Mental Disorders (5th ed.). Arlington, VA: American Psychiatric Association.
Mohan, L., Y. M. (Jul 10, 2023). Conduct Disorder. StatPearls Publishing; Treasure Island (FL).
Wong, R. S. Y. (2023). Psychopathology of ASPD. The Egyptian Journal of Neurology.
Zilong Chen, Yinuo Xing, Zehui Zhang. (2021). The Review of Antisocial Personality Disorder. Proceedings of the 2021 International Conference on Public Relations and Social Sciences.