Pieces of the Psychopathic Brain
According to the Federal Bureau of Investigations website, psychopathy has been described as the single most important clinical construct in the criminal justice system. It goes on to say that the need to understand psychopathy cannot be overstated (FBI, 2013.) From environmental influence to biology, psychopathy can be looked at from several different angles. This paper examines current thinking about how the brain and its structures contribute to psychopathy.
One area of research in psychopathy focuses on the set of structures in the brain known as the limbic system, but more specifically on a structure known as the amygdala. According to neuropsychology class slides, the amygdala is involved in emotions and storage of emotions in memory as well as the fear response when encountering threatening environmental stimuli. Osumi and colleagues (2012) note that the affective and interpersonal facets of psychopathy, such as cold-heartedness and lack of empathy, which are thought to be the core features of psychopathy, are associated with reduced activity in the amygdala. This is coupled with the fact that a less functional amygdala is associated with a psychopathic individual’s exhibition of antisocial behaviors, at least in part because he will not perceive the threat of punishment as a consequence of his actions. So whether it be the acts against other people or the acts of justice that may be carried out against the perpetrator, the psychopath will perceive both as less significant, as compared to a non-psychopathic individual. (Osumi et al., 2012)
Kiehl’s (2006) literature review continues with this idea of amygdala implication in psychopathic traits by saying that the amygdala, in particular o...
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Hare used these core factors to develop the Psychopathy Checklist-Revised assessment tool that helps detect psychopathy in people. They developed this theory because psychopathic behavior was thought of as miscellaneous of a topic to be categorized in one or two factors. The four recommended factors proposed by Hare and Neumann are: Interpersonal, Affective, Lifestyle and Antisocial. The first factor, interpersonal consists of superficial charm, manipulation, pathological lying, and a grandiose sense of self-worth. Secondly, the affective factor involves the lack of remorse or guilt, shallow affect, callous and/or lack of empathy, and failure to accept responsibility for own actions. The third factor is lifestyle, which comprises of need for stimulation and/or proneness to boredom, parasitic lifestyle, impulsivity, irresponsibility, unsatisfactory work habits, and lack of realistic long-term goals. Finally the fourth factor is antisocial and contains poor behavioral controls, early behavior problems, juvenile delinquency, criminal versatility, and revocation of conditional release (Hare & Neumann, 2005, p.58-59). According to Hare and Neumann “The 4 psychopathy factors are significantly interrelated, and thus can be comprehensively explained by a single superordinate (that is, psychopathy) factor.” (Hare, R. D., & Neumann, C. S.
However, Glenn and Raine (2014) argue that the emotional deficits characteristic of psychopaths diminish their rational capacity, making them unable to be held accountable for the rash and harmful decisions. Additionally, psychopaths may display knowledge of right and wrong, however their understanding is substantially compromised (Maibom 2005). Therefore, because they cannot understand moral emotions, moral transgressions fail to motivate them and they cannot be held morally responsible for their actions. They treat moral transgressions as equal to conventional transgressions (Levy 2008); to them, they are merely breaking the rules. And although breaking the rules begets consequences, a short attention span prevents psychopaths from anticipating consequences. Nevertheless, say, for example, a psychopath on a different portion of the spectrum is aware of the consequences. In this case, they would be still be indifferent because their feelings of grandeur lead them to believe that they are removed from punishment (Gao, Glenn, Schug, Yang, Raine 2009). For these reasons, many argue that psychopaths should not be held responsible for their behaviors.
Biological Trait Theory has been found to have influences in neurophysiology, or the way the brain’s nervous system functions. When the part of the brain that controls fear, aggression, and social interactions, the amygdala, occurs in lower volumes, these traits will appear later in someone’s life. Other research cases have shown that psychopathic behaviors can occur when an individual’s amygdala functions at a lower efficiency or has certain deficits. One study, led by Yu Gao of the University of Pennsylvania, suggests that tendencies that may indict this event can occur before any crimes are committed. Another part of the brain, the anterior cingulate cortex, or the ACC, which plays an important role in controlling behavior and impulses,
Triarchic Conceptualization of Psychopathy: Developmental Origins of Disinhibition, Boldness, and Meanness. " Development and Psychopathology 21.03 (2009): 913–9. Cambridge Journals. 7 July 2009. Web.
Serial killers are defined to “be driven by instinct and desire to kill.” In a study done in 2000, Dr, Richard Davidson says, “people with a large amount of aggression – in particular people who have committed aggressive murders or have a social disorder – have almost no brain activity in the orbital frontal cortex or the anterior cingulated cortex while activity in the amyglade continued perfectly. The orbital frontal cortex and the anterior congulated cortex control emotional impulses while the amyglade controls reactions to fear.” Davidson concludes his research claiming that although environment can and will affect a serial killer’s thoughts, it is a killer’s genetic makeup that inevitably creates murderous thoughts.
Psychopathy has fascinated the public for years due to the gruesome and evil portrayal it has received in the media. Psychopathy is defined in the DSM-III as a personality disorder characterized by enduring antisocial behavior, diminished empathy and remorse, and disinhibited or bold behavior (Patrick, Christopher, Fowles, Krueger, Rober, 2009). Psychopathy represents a cluster of different dimensions of personality found amongst the general population to varying degrees (Patrick et al, 2009). The diagnostic definition is meant to be applied to adults, however psychopathology can occur in children. Controversy surrounds the topic of childhood mental illness because the brain is not fully developed until the age of 18; thus allowing the possibility that symptoms are the result of growing up and will change. The triarchic model, formulated by Christopher J. Patrick, is the most commonly used model in diagnosing adult and childhood psychopathy. This model suggests that different conceptions of psychopathy emphasize three observable characteristics to varying degrees; boldness, disinhibition and meanness (Patrick, et al, 2009). Boldness is the first observable characteristic and is comprised of low fear including stress-tolerance, toleration of unfamiliarity and danger, and high self-confidence and social assertiveness. Disinhibition; characterized by poor impulse control including problems with planning and foresight, lacking affect and urge control, demand for immediate gratification, and poor behavioral restraints. Meanness is defined as lacking empathy and close attachments with others, disdain of close attachments, use of cruelty to gain empowerment, exploitative tendencies, defiance of authority, and destructive excitement seek...
Riser, R. E., & Kosson, D. S. (2013). Criminal behavior and cognitive processing in male offenders with antisocial personality disorder with and without comorbid psychopathy. Personality Disorders: Theory, Research, and Treatment, 4(4), 332-340. doi:10.1037/a0033303
In his book Without Conscience: The Disturbing World of the Psychopaths among us, Dr Robert D. Hare tells a chilling report of the psychopaths he has worked with throughout his career as a criminal psychologist as well as examples from pop culture and high-profile news stories, ranging from the anticipated serial killer to the unassuming white-collar criminal. Dr. Hare’s book paints a fascinating and creepy portrait of the psychopath and sheds light on the fact that psychopathy is more common than we would like to think. In addition to defining the term psychopath and answering pertinent questions of nature vs. nurture, Dr. Hare provides the reader with the Hare Psychopathy Checklist as well as a survival guide; seeing that these men and women
As the result, understating the personality characteristics and behavioral traits of psychopathy allows criminal investigator to acquire effective strategies to deal with the offenders (Whitson, 2011). The rating of the PCL-R serves as a tool to assess and indicate the concept of psychopathy by examining the factor of interpersonal skills, affective response, lifestyle, and antisocial behavior (Ogloff, 2006). Therefore, the rating of the PCL-R tends to be precise based on the correlated factors. However, the assessment of psychopathy can be limited through investigator bias, false confession, false deception detection, and ineffective criminal profiling (Pozzulo, Bennell, & Forth, 2014). Moreover, psychopath’s fearlessness responses of blame, rationalize, and deny their engagement in criminal behavior also increases the difficulty to criminal investigation (Whitson,
Miller, Laurence. "The predator's brain: Neuropsychodynamics of serial killers."Serial offenders: Current thought, recent findings, unusual syndromes (2000): 135-166.
The brain is the most complex organ in the human body. Since the beginning of time, scientists and neuropsychologists alike have studies its composition and how it influences human behavior. However, no human behavior has baffled researchers more than serial murder. Serial killers are dangerous animals that act upon bizarre influences that have fascinated the human race for thousands of years. Many wonder what could cause a person to take the life of another innocent soul. Do internal factors cause them to do it? Is it their environment? What causes a serial killer to kill?
Walters G (2012). Psychopathy and Crime: Testing the Incremental Validity of PCL-R-Measured Psychopathy as a Predictor of General and Violent Recidivism. Law and Human Behavior.36(5), 404-412.
Scientists consider nature as a reason for psychopathy because of the way their brains are set up. One theory suggests that the one region located in the brain that is less active in psychopaths is the amygdala, which is normally linked with fear. In “The Wisdom of Psychopaths” Dutton explains that studies have been done and have proven that the brain has dysfunction. Dutton also explains a case study that he has done with the thought of killing one person over killing five. Psychopaths have no problem killing that one person.
The brain is arguably the most complex part of a human being and is linked to motivations, feelings, and actions. Therefore, when actions of individuals differ from “normal” actions, the brain is brought into question. Repeat killers commit actions that are not “normal” when compared to the general public and therefore research on their brains has been conducted. When comparing scans of everyday citizens’ brains as opposed to the brain of a convicted serial killer, the differences are clear. The two scans differ widely with the prefrontal gray matter of the average person’s, dwarfing that of the murderer’s (Adams). Pr...
The media most often showcases psychopaths as individuals who are inherently evil and dangerous towards themselves and others. Yet, this concept of psychopathy goes far beyond this idea of pure evil and instead necessitates a needed psychological understanding. These individuals, psychopaths, are generally characterized by a lack of empathy and conscience. Indeed, psychopath’s indifference to the repercussions of their actions combined with other characteristics such as hostility and aggression make for a potentially dangerous personality (Lyken, 1996, p.30). In order to identify a psychopath’s recidivism, it is important to differentiate them from sociopaths who, instead of having a psychological impairment that makes it difficult for them to socialize, have been systematically under socialized (Lyken, 1996, p.30). In accordance. psychologists have developed the methods such as the Psychopathy Checklist- Revised (PCL-R) to help identify those with psychopathic tendencies (Walters, 2012, p.409). That is why predictions of recidivism among psychopaths is most efficient when done