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A small study found that people with social phobia who read a negative statement about themselves had increased brain activity in the amygdala and prefrontal cortex that the control patients did not have.

A small study into political psychology found that those who considered themselves politically liberal responded differently to a stimulus test than did those who considered themselves conservative.

A study comparing several forms of treatment for cocaine addiction found that while all treatments resulted in decreased drug use, those that focused on changing behavior were more successful.

People with bipolar disorder who maintain long-term lithium therapy may gain some protection against developing dementia.