Abdel Rahman Rasha, van Turennout Miranda, Levelt Willem J M
Max Planck Institute for Psycholinguistics, PO Box 310, 6500 AH Nijmegen, the Netherlands.
J Exp Psychol Learn Mem Cogn. 2003 Sep;29(5):850-60. doi: 10.1037/0278-7393.29.5.850.
In the present study, the authors examined with event-related brain potentials whether phonological encoding in picture naming is mediated by basic semantic feature retrieval or proceeds independently. In a manual 2-choice go/no-go task the choice response depended on a semantic classification (animal vs. object) and the execution decision was contingent on a classification of name phonology (vowel vs. consonant). The introduction of a semantic task mixing procedure allowed for selectively manipulating the speed of semantic feature retrieval. Serial and parallel models were tested on the basis of their differential predictions for the effect of this manipulation on the lateralized readiness potential and N200 component. The findings indicate that phonological code retrieval is not strictly contingent on prior basic semantic feature processing.
在本研究中，作者运用事件相关脑电位来检验在图片命名中语音编码是由基本语义特征检索介导还是独立进行的。在一项手动二选一的“是/否”任务中，选择反应取决于语义分类（动物与物体），而执行决策则取决于名称语音的分类（元音与辅音）。引入语义任务混合程序能够选择性地操纵语义特征检索的速度。基于串行模型和平行模型对这种操纵对侧化准备电位和N200成分的影响的不同预测对其进行了测试。研究结果表明，语音代码检索并不严格依赖于先前的基本语义特征处理。
