in the presence of 50 microm s-sulpiride ( to occlude the dopaminergic sites ) , therefore , we first determined that the residual binding of [ 3h ] spiperone ( approximately 20 % ) was inhibited by serotonergic agonists much more effectively than dopamine or noradrenaline , thus identifying the serotonergic component of [ 3h ] spiperone binding .
C0282151
dopaminergic
C0013030
dopamine