【摘要】 近几年,对负启动效应的神经机制研究发现,干扰项抑制与情节提取都是引起负启动的原因,究竟哪种机制起主要作用与实验任务有很大的关系。从现有的研究结果来看,位置负启动与前额皮层有关,EPR上表现为P1和N1波幅减小或N2波幅的增大,支持抑制机制。特性负启动P3成分仍存在不一致的结果,脑区的广泛激活模式使得研究者越来越倾向采取整合的观点。更多还原

【Abstract】 In recent years,results about the neural bases of negative priming effect indicated that both distracter inhibition and episodic retrieve are suggested to account for the negative priming effect.Which kind of mechanism cause NP effect will depend on experimental tasks.The prefrontal cortex was activated in location negative priming task,which is associated with inhibition mechanism with a decrease of P1 and N1 amplitude or a increase of N2 amplitude.However,there are some inconsistent results of P3 in identity negative priming.Researchers are inclined to hold integration view because of activation of a widespread cortical network.更多还原