Laboratoire de Psychologie Cognitive (LPC), CNRS et Université de Provence, Bat. 9, Case D, 3, place Victor Hugo, 13331 MARSEILLE Cedex 3, France.
Brain Res. 2011 Apr 22;1386:153-64. doi: 10.1016/j.brainres.2011.02.050. Epub 2011 Feb 23.
The present study combined masked priming with electrophysiological recordings to investigate orthographic priming effects with nonword targets. Targets were pronounceable nonwords (e.g., STRENG) or consonant strings (e.g., STRBNG), that both differed from a real word by a single letter substitution (STRONG). Targets were preceded by related primes that could be the same as the target (e.g., streng-STRENG, strbng-STRBNG) or the real word neighbor of the target (e.g., strong-STRENG, strong-STRBNG). Independently of priming, pronounceable nonwords were associated with larger negativities than consonant strings, starting at 290ms post-target onset. Overall, priming effects were stronger and longer-lasting with pronounceable nonwords than consonant strings. However, consonant string targets showed an early effect of word neighbor priming in the absence of an effect of repetition priming, whereas pronounceable nonwords showed both repetition and word neighbor priming effects in the same time window. This pattern of priming effects is taken as evidence for feedback from whole-word orthographic representations activated by the prime stimulus that influences bottom-up processing of prelexical representations during target processing.
本研究结合掩蔽启动和电生理记录来研究非词目标的正字法启动效应。目标是可发音的非词（例如 STRENG）或辅音串（例如 STRBNG），它们都与真实单词相差一个字母替换（STRONG）。目标之前有相关的启动词，可以与目标相同（例如 streng-STRENG，strbng-STRBNG），也可以是目标的真实单词邻居（例如 strong-STRENG，strong-STRBNG）。与辅音串相比，无论是否启动，可发音的非词在目标出现后 290 毫秒开始时都会产生更大的负性。总体而言，可发音的非词比辅音串的启动效应更强、持续时间更长。然而，辅音串目标在没有重复启动效应的情况下表现出单词邻居启动的早期效应，而可发音的非词在同一时间窗口内表现出重复和单词邻居启动效应。这种启动效应模式被视为来自被启动刺激激活的整字正字法表示的反馈的证据，该反馈影响目标处理过程中词汇前表示的底向上处理。
