DNA from peripheral nuclear blood cells was genotyped for 5-HTTLPR using standard polymerase chain reaction methods.A significant group effect was observed only on memory function tasks ( p = 0.04 ) but not on reaction times ( p = 0.61 ) or attention/executive functioning ( p = 0.59 ) .
O O O O O O O O O B-GeneOrGeneProduct O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O