Friday, December 16, 2011

The Brain of a Psychopath



Psychopathy is a mental disorder generally defined primarily by a lack of empathy and remorse, egocentricity, and shallow emotion. Psychopaths tend to have antisocial behavior, however their abusive means are sometimes not automatically spots. Many times it can be out of secretive methods of manipulation. However, pyschopathic tendencies can be seen in childhood and early adolescence. There is a MacDonald Triad created by J.M. MacDonald in which three indicators: excessive bedwetting, cruelty to animals, and firestarting sets the standard for psychopathic behavior. Other examples could be theft, robbery, and destruction of property. For example, Charles Manson, who founded a cult group known as "The Family", manipulated the people to murder, started his first offenses commiting a string of burglaries. (in the picture)
Genetics plays a significant role in the development of pyschopathy, however the environment interacts with genetics, so genes are the not only determinant. There has been studies done on twins. One article by Dr. Essi Viding of the London Kings College Institute of Psychiatry discussed experiments done with twins. Samples of twins were investigated in a general study called Twins Early Developmental Study. Callous unemotional traits were placed on a scale by using questions relating to antisocial traits in several assessments. Another measurement, the antisocial behavior (AB) scale was also devised. Results of this study showed that callous unemotional traits are highly based on genetics. The children that showed high results in callous unemotional traits had strong genetic influence in antisocial behavior. Whereas, the children that did not test high in callous unemotional behavior showed that their antisocial behavior was more based on environment. The studies in the UK have shown that children with psychopathic tendencies are likely to have inherited in from their parents.
Brain Differences?
It has been show that psychopaths lack brain activity that has to deal with emotion, fear, and empathy. The areas include the right hemisphere, the amygdala, and the frontal cortex respectively. Psychpaths tend to respond less to fearful faces than healthy individuals.

4 comments:

  1. Dont's physopaths get incredible angry?
    Also I feel like the traits that physcopaths expressed are due to the environments and situations they were in during their critical period

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  2. Pyschopaths do get incredible angry, but the mysterious part of it is they hide their anger and use it for ways to control and manipulate. Most definently the enviroments that they were in during the critical period of development has an effect on their mental state. I was trying to discover more of the genetic reasons behind this.

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  3. SO if they do not get angry, what triggers their actions?

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  4. I don't think there is a precise trigger that sets all of these people, it might be a different trigger for each person. for example, anger might have an effect as well as depression and the pure will to do some of these things.

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