We may be programmed in such ways as to predispose us toward "winning" or "losing," according to research published this week in Science by neuroscientists at the RIKEN Brain Science Institute in Japan. This is the case, at least, for zebrafish, which were found to have separate neuroscientists whose relative activity could be used to predict the outcome of fights. Generally, what they've found is a biological mechanism for conflict resolution and social aggression.The neural subregions in question are both part of the dorsal habenula (dHb), a wad of neurons right in the brain's central nut responsible for such things as stress and pain responses, reproductive behavior, and learning.

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