Grainger Jonathan, Kiyonaga Kristi, Holcomb Phillip J
CNRS and University of Provence, Marseille, France.
Psychol Sci. 2006 Dec;17(12):1021-6. doi: 10.1111/j.1467-9280.2006.01821.x.
The present study used event-related potentials (ERPs) to examine the time course of orthographic and phonological priming in the masked priming paradigm. Participants monitored visual target words for occasional animal names, and ERPs to nonanimal critical items were recorded. These critical items were preceded by different types of primes: Orthographic priming was examined using transposed-letter (TL) primes (e.g., barin-BRAIN) and their controls (e.g., bosin-BRAIN); phonological priming was examined using pseudohomophone primes (e.g., brane-BRAIN) and their controls (e.g., brant-BRAIN). Both manipulations modulated the N250 ERP component, which is hypothesized to reflect sublexical processing during visual word recognition. Orthographic (TL) priming and phonological (pseudohomophone) priming were found to have distinct topographical distributions and different timing, with orthographic effects arising earlier than phonological effects.
本研究使用事件相关电位（ERP）来考察在掩蔽启动范式中，正字法和语音启动的时间进程。参与者监测视觉目标词，寻找偶尔出现的动物名称，并记录对非动物关键项目的ERP。这些关键项目之前有不同类型的启动刺激：使用转置字母（TL）启动刺激（例如，barin - BRAIN）及其对照（例如，bosin - BRAIN）来考察正字法启动；使用假同音字启动刺激（例如，brane - BRAIN）及其对照（例如，brant - BRAIN）来考察语音启动。两种操作都调节了N250 ERP成分，据推测该成分反映了视觉单词识别过程中的次词汇加工。研究发现，正字法（TL）启动和语音（假同音字）启动具有不同的地形分布和不同的时间，正字法效应比语音效应出现得更早。
