Neurobiological Component Causing the Behavior of Psychopaths

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According to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition; American Psychiatric Association (2013), a personality disorder is a persistent stable pattern of behaviors and experiences that differ drastically from the norm of an individual’s culture; starts in adolescence or early adulthood, and leads to impairment or distress (American Psychiatric Association, 2013). Antisocial personality Disorder (A.P.D.) falls under the personality disorder umbrella. A.P.D. consists of a persistent pattern of not following rules and violating the rights of others starting before the age of fifteen; as show by three or more of the following symptoms: failure to conform to society norms (i.e. performing behaviors leading to arrest), deceitfulness, impulsivity, irritability, aggressiveness, recklessness, consistent irresponsibility and a lack of remorse. Additionally, the individual must be at least age eighteen upon diagnosis and previously exhibited evidence of Conduct Disorder (CD) with an onset before the age of fifteen while the antisocial behavior is not occurring during the course of Bipolar or Schizophrenia (DSM-5, 2013).

The aforementioned disorders are relative to our topic of discussion: psychopaths (psychopathy), whom fall under a special heterogeneous category of A.P.D. affected individuals (Anderson & Kiehl, 2012). To clarify how rare a subgroup psychopaths are consider that 75% of prison inmates meet the criteria for A.P.D. but only 3% of that 75% meet the criteria to be called a psychopath (Weber, Habel, Amunts, & Schneider, 2008).The full clinical manifestation of what is called a psychopath, sometimes referred to as psychopathy is seen in less than 1% of the general population (Anderson & Kiehl, 2...

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...ology and Criminal Justice, Doi: 1-.3138/cjccj.52.1.29

Harenski, C. L., & Harenski, K. A. (2010). Aberrant neural processing of moral violations in criminal psychopaths. Journal of Abnormal Psychology, 119(4), 863-874. Doi: 10.1037/a0020979.

Newman, J. P., Curtin, J. J., Bertsch, J. D., & Baskin-Sommers, A. R. (2010). Attention moderates the fearlessness of psychopathic offenders. Society of Biological Psychiatry, 67, 66-70. Doi: 10.1016/j.biopsych.2009.07.035

Weber, S., Habel, U., Amunts, K. & Schneider, F. (2008). Structural brain abnormalities in psychopaths—a review. Behavioral Sciences and the Law, 26, 7-28. Doi: 10.1002/bsl.802.

Wilson, K., Juodis, M., & Porter, S. (2011). Fear and loathing in psychopaths: A meta-analytic investigation of the facial affect recognition deficit. Criminal Justice and Behavior, 38, 659-666. Doi: 10.1177/0093854811404120

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