Connolly J F, Byrne J M, Dywan C A
Department of Psychology, Dalhousie University, Halifax, NS, Canada.
J Clin Exp Neuropsychol. 1995 Aug;17(4):548-65. doi: 10.1080/01688639508405145.
This experiment investigated whether a relationship existed between event-related potentials (ERPs) and performance on a standardized measure of receptive vocabulary; a computer adapted version of the Peabody Picture Vocabulary Test-Revised (PPVT-R); using Preschooler, Child, and Adult levels of difficulty. Pictures (N = 90) were presented twice, once paired with a congruent spoken word and again paired with an incongruent word. Two ERP components (PMN and N400) were clearly and reliably larger in response to incongruent than congruent picture/spoken-word pairs. Importantly, ERP differentiation of congruent and incongruent pairs occurred only at vocabulary levels at or below the subjects' psychometrically determined vocabulary range. ERP differentiation did not occur at the highest level of vocabulary where subjects experienced more uncertainty and made more behavioral errors. These results are discussed in relation to the use of ERP measures in the assessment of receptive vocabulary levels.
本实验研究了事件相关电位（ERP）与接受性词汇标准化测量（皮博迪图片词汇测验修订版（PPVT-R）的计算机自适应版本，使用学龄前、儿童和成人难度级别）的表现之间是否存在关联。90张图片呈现了两次，一次与一致的口语单词配对，另一次与不一致的单词配对。两个ERP成分（PMN和N400）对不一致的图片/口语单词对的反应明显且可靠地大于对一致的反应。重要的是，一致和不一致对的ERP区分仅在受试者心理测量确定的词汇范围及以下的词汇水平出现。在最高词汇水平上，受试者经历更多不确定性并出现更多行为错误，此时未发生ERP区分。结合ERP测量在评估接受性词汇水平中的应用对这些结果进行了讨论。
