Abstract
In the previous report (1), the authors showed that the brain noradrenaline level in rat was induced to elevation, in the state of electric shock, compared with that in non-treated animals. On the other hand, pretreatment with some tranquil lizing agents, chlorpromazine, azacyclonol inhibited the increase of noradrenaline level in shocked state, while, chlordiazepoxide had no effect on noradrenaline level.
In addition to the previous paper, other tranquillizing agents, tetrabenazine, thioridazine and cyproheptazine were employed in this experiment in order to examine their effect on both noradrenaline and dopamine levels of rat brain in abnormal environment, i.e., electrically shocked state.
