Schmuck P, Bloem R
Georg-August-Universität Göttingen.
Z Exp Psychol. 1998;45(1):60-71.
Ignoring a distractor on a prime trial generally impairs responses to that stimulus on a subsequent probe trial. This so called negative-priming (NP) effect supports the view that the representations of distracting stimuli underly a cognitive inhibition during target selection (Tipper, 1985). Aiming at the optimization of NP designs for analyzing cognitive inhibition the present paper investigates two open questions within this context: Which classical designs using words, letters, or pictures as stimuli are most accepted by subjects and at the same time result in possibly strong NP effects? What is the time course of NP, and at which interstimulus interval (ISI) the maximum is reached? In experiment 1, three "classical" NP designs were compared within one sample of subjects and a picture design was selected as the most suitable one. In experiment 2 the ISI was varied within subjects; the maximal NP effect was found at an ISI of around 1000 ms.
在启动试验中忽略干扰项通常会损害对随后探测试验中该刺激的反应。这种所谓的负启动(NP)效应支持这样一种观点,即干扰刺激的表征在目标选择过程中构成认知抑制(Tipper,1985)。为了优化用于分析认知抑制的NP设计,本文在这一背景下研究了两个开放性问题:使用单词、字母或图片作为刺激的哪些经典设计最受受试者接受,同时可能产生较强的NP效应?NP的时间进程是怎样的,在哪个刺激间隔(ISI)达到最大值?在实验1中,在一组受试者内比较了三种“经典”NP设计,并选择了图片设计作为最合适的一种。在实验2中,在受试者内改变ISI;在ISI约为1000毫秒时发现了最大的NP效应。