PET links brain chemistry, personality

August 20, 2008 PET links brain chemistry, personality H. A. Abella ------------------------------------------------------------------------------- In the first study of its kind, German researchers have shown a correlation between healthy people's personalities and their brain chemistry using PET. Findings could lead to better understanding and treatment of addictive behavior. Multiple studies have cemented the theory that genetic or acquired anomalies of the brain's endorphine or reward system influence the development of addictive behavior. Previous imaging research has found evidence that individuals with impaired reward systems are at higher risk of drug or alcohol abuse or pathological gambling.

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