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Psychopathy Research

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According to Harris et al, psychopathy is best described as "a lifelong persistent condition characterized, in males at least, by aggression beginning in early childhood, impulsivity, resistance to punishment, general lack of emotional attachment or concern for others, dishonesty and selfishness in social interactions" (Walker).
Accounting for a small portion of the population, psychopaths have distinguished characteristics. They can be charming and likeable, yet at the same time be egotistical, short-tempered and impulsive. The most significant trait that exists in psychopaths is their lack of guilt, empathy, or emotion in general. For instance, after committing crimes, they will remain indifferent and lack remorse (Hare; Bower). The cause …show more content…

The first, though not used very often, is known as Multidimensional Personality Questionnaire. This has been used in the past to compare the personalities of criminals in prison and people considered to normal. Though this method can’t be used to measure psychopathy, it still allows scientists and psychiatrists to understand the differences between criminals and everyday people (Blonigen). The second method, known as PCL-R is far more common and used much more often. It has also been known to effectively diagnose how psychotic a person is. This exam is conducted by having psychiatrists interview patients, asking them hundreds of questions based on information and reports on the patient. After gaining as much information as possible, the psychiatrists place all the data into four categories that are all based on personality characteristics. These four categories include dishonesty, lack of compassion and remorse, standoffish or antisocial demeanor, and finally, violent or spontaneous behavior (Abbot). The PCL-R exam is done on a scale of 1-40. The average person usually scores 5 on this test, while psychopaths score over 30 (Bower). Nevertheless, although this method has been used successfully, the PCL-R test can have harmful impacts on psychopaths. In fact, Boerema, a convict with a PCL-R score of 35, states, "The courts look at your PCL-R rating and add two years to your sentence, then another two years, and then …show more content…

According to Wiebe, “Psychopathy does seem to be heritable, and appears to have its basis at least in part in “biological” factors linked to basic emotional systems, so that the mature psychopath never develops a complete set of pro-social emotions like empathy, guilt, and the ability to truly care about and for others” (Hunter). Scientists regard psychopathy with a genetic disorder that affects the brain, or more specifically the amygdala. The amygdala is a structure in the brain that senses and danger (Bower). Scientists have determined that there is no such thing as a specific “crime gene”, however, they have been able to discover a genes that has a correlation with violence and antisocial behavior that most psychopaths have in common. This gene is known as MAO-A (Walker). MOA-A has been associated with amygdala response and increased amygdala responses can make a person more hostile

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