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Extreme Overvalued Belief and Anders Breivik: How Beliefs Can Be Mistaken For Psychosis

A republished article from Jesslyn Chew at the University of Missouri on Futurity, a non-profit website which features the latest discoveries by scientists at top universities in the US, UK, Canada, Europe, Asia and Australia. Read the original article here.


Researchers suggest a new forensic term to classify non-psychotic behavior that leads to criminal acts of violence—such as the mass murder committed by Anders Breivik. “When these types of tragedies occur, we question the reason behind them,” says Tahir Rahman, an assistant professor of psychiatry at the University of Missouri School of Medicine and lead author of the study. “Sometimes people think that violent actions must be the byproduct of psychotic mental illness, but this is not always the case.”

“Our study of the Breivik case was meant to explain how extreme beliefs can be mistaken for psychosis, and to suggest a new legal term that clearly defines this behavior.”

Psychotic or not?

Breivik, a Norwegian terrorist, killed 77 people in a 2011 car bombing in Oslo and a mass shooting at a youth camp on the island of Utøya in Norway. Claiming to be a “Knights Templar” and a “savior of Christianity,” Breivik stated that the purpose of the attacks was to save Europe from multiculturalism.

Two teams of court-appointed forensic psychiatrists later examined Breivik. The first psychiatric team diagnosed him with paranoid schizophrenia. However, after widespread criticism, a second team concluded that Breivik was not psychotic and diagnosed him with narcissistic personality disorder. Breivik was sentenced to 21 years in prison.

“Breivik believed that killing innocent people was justifiable, which seems irrational and psychotic,” says Rahman, who also conducts forensic psychiatric examinations but was not involved with the Breivik case. “However, some people without psychotic mental illness feel so strongly about their beliefs that they take extreme actions. Current clinical guides, such as the Diagnostic and Statistical Manual of Mental Disorders, offer vague descriptions of alternative reasons a person may commit such crimes. Our suggested term for criminally violent behavior when psychosis can be ruled out is ‘extreme overvalued belief.’”

Rahman defines “extreme overvalued belief” as a belief that is shared by others and often relished, amplified, and defended by the accused. The individual has an intense emotional commitment to the belief and may act violently as a result of that belief. Although the individual may suffer from other forms of mental illness, the belief and the actions associated with it are not the result of insanity.

“In courts of law, there are not clearly defined, standard methods of diagnosing insanity for legal purposes,” Rahman says. “This new term will help forensic psychiatrists properly identify the motive for the defendant’s criminal behavior when sanity is questioned.”

Psychosis

Amplification of beliefs

Rahman says that more research on extreme overvalued beliefs is needed to understand how they develop. Identifying those at risk will give mental health professionals an opportunity to intervene before violent behavior occurs.

“Certain psychological factors may make people more vulnerable to developing dominating and amplified beliefs,” Rahman says. “However, amplification of beliefs about issues such as immigration, religion, abortion or politics, also may occur through the internet, group dynamics or obedience to charismatic authority figures.

“We already warn our youth about the dangers of alcohol, drugs, teen pregnancy, and smoking. We need to add the risk of developing extreme overvalued beliefs to that list as we work toward reducing the violence often associated with them.”

The study appears in the Journal of the American Academy of Psychiatry and the Law. The University of Missouri School of Medicine and psychiatry department supported this work. The researchers have no conflicts of interest to declare related to this study.

Source: University of Missouri

Read the full research studyAnders Breivik: Extreme Beliefs Mistaken for Psychosis

 

‘Beliefs, not just psychosis, can spur violence’ posted by Jesslyn Chew, University of Missouri on futurity.org.
Republished under CC-BY-4.0

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