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** Revenge feels good because the action triggers the same part of the brain associated with satisfaction, said Swiss scientists in the journal Science. They scanned brains of volunteers playing a game that involved players penalizing cheaters. Anticipation of this pleasure drives people to punish others, they said.
** Mice with 2 mutated genes showed the same psychotic behavior as a Canadian family with a history of schizophrenia that also had the 2 mutations, said Texas and Ohio researchers. The mice failed to socialize, and some darted around wildly. The ...