For example , the so-called novelty-seeking gene , drd4-7r , is more common in populations that migrated fastest and furthest from africa ( american journal of physical anthropology , vol 145 , p 382 ) .
There is evidence that this happened repeatedly during our evolution , though when , and through what infectious agents , is unknown ( proceedings of the national academy of sciences , vol 99 , p 11748 ) .
Most people in the unexposed group pocketed the lot but those primed to think of god were much more generous ( psychological science , vol 18 , p 803 ) .
