Monday, November 27, 2006

social status self-perception and the brain

When the volunteers won more money than the three-star players, raising their status in the game, the brain scanner showed increased activity in three brain regions: the anterior cingulate, an area that has been shown to monitor conflict and resolve discrepancies; the medial prefrontal cortex, which processes thoughts about other people; and the precuneus, a newly discovered region that some scientists think may be the seat of self-consciousness, the brain’s ability to think about itself.

In contrast, when the one-star players won more money during the game than the volunteers, lowering their status, activity increased in the ventral striatum and the insular cortex, also known as the insula.

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