归类任务中负启动效应与分心物特性抑制的实验研究

以汉语单字词为材料，采用负启动技术，在归类任务中考察了作为负启动效应根源的扩散抑制是否遵循资源有限机制以及在要求操作反应的情况下是否也能获得来自分心物特性抑制的负启动效应。结果表明：１．被试对曾在启动显示中作为分心物的探测目标的反应时随着启动显示中分心物数目的增加而缩短。因此，扩散抑制遵循资源有限机制；２．在操作反应要求下能获得非常显著的来自分心物特性抑制的负启动效应。

A STUDY ON NEGATIVE PRIMING EFFECT AND DISTRACTOR IDENTITY INHIBITION IN CATEGORIZATION TASK

In categorization tasks,using Chinese single-character words as the material and negative priming as the technique,this study examined whether spreading inhibition,which was at the root of negative priming effects,was a limited resource mechanism.It also examined whether the negative priming effect,which was produced by distractor identity inhibition,could also be observed when an operation response was used.The results showed:1.The RT on a probe target,which had just been a distractor in a previous prime display,shortened when the number of distractors in the previous prime display increased.Therefore,the spreading inhibition was a limited resource mechanism;2.A very significant negative priming effect,which was produced by distractor identity inhibition,could be observed when the operation response was used.