The mechanism underlying backward priming in a lexical decision task: Spreading activation versus semantic matching

被引:83
作者
Chwilla, DJ [1 ]
Hagoort, P [1 ]
Brown, CM [1 ]
机构
[1] Max Planck Inst Psycholinguist, Nijmegen, Netherlands
来源
QUARTERLY JOURNAL OF EXPERIMENTAL PSYCHOLOGY SECTION A-HUMAN EXPERIMENTAL PSYCHOLOGY | 1998年 / 51卷 / 03期
关键词
D O I
10.1080/713755773
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
Koriat (1981) demonstrated that an association from the target to a preceding prime, in the absence of an association from the prime to the target, facilitates lexical decision and referred to this effect as "backward priming". Backward priming is of relevance, because it can provide information about the mechanism underlying semantic priming effects. Following Neely (1991), we distinguish three mechanisms of priming: spreading activation, expectancy, and semantic matching/integration. The goal was to determine which of these mechanisms causes backward priming, by assessing effects of backward priming on a language-relevant ERP component, the N400, and reaction time (RT). Based on previous work, we propose that the N400 priming effect reflects expectancy and semantic matching/integration, but in contrast with RT does not reflect spreading activation. Experiment 1 shows a backward priming effect that is qualitatively similar for the N400 and RT in a lexical decision task. This effect was not modulated by an ISI manipulation. Experiment 2 clarifies that the N400 backward priming effect reflects genuine changes in N400 amplitude and cannot be ascribed to other factors. We will argue that these backward priming effects cannot be due to expectancy but are best accounted for in terms of semantic matching/integration.
引用
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页码:531 / 560
页数:30
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