Department of Psychological and Brain Sciences, University of Massachusetts Amherst, United States of America.
Department of Education Studies, Hong Kong Baptist University, Hong Kong; Centre for Learning Sciences, Hong Kong Baptist University, Hong Kong.
Int J Psychophysiol. 2023 May;187:11-19. doi: 10.1016/j.ijpsycho.2023.02.004. Epub 2023 Feb 20.
This study examined whether Chinese spoken compound words are processed via full-form access or combination through morphemes by recording mismatch negativity (MMN). MMN has been shown to be larger for linguistic units that involves full-form access (lexical MMN enhancement) and smaller for separate but combinable units (combinatorial MMN reduction). Chinse compound words were compared against pseudocompounds, which do not have full-form representations in the long-term memory and are "illegal" combinations. All stimuli were disyllabic (bimorphemic). Word frequency was manipulated with the prediction that low-frequency compounds are more likely processed combinatorially, while high-frequency ones are more likely accessed in full forms. The results showed that low-frequency words elicited smaller MMNs than pseudocompounds, which supported the prediction of combinatorial processing. However, neither MMN enhancement nor reduction was found for high-frequency words. These results were interpreted within the dual-route model framework that assumes simultaneous access to words and morphemes.
本研究通过记录错配负波（MMN）来检验汉语口语复合词是否通过整体形式访问或通过词素组合进行处理。已表明，涉及整体形式访问的语言单位的 MMN 更大（词汇 MMN 增强），而可分离但可组合的单位的 MMN 更小（组合 MMN 减少）。将汉语复合词与伪复合词进行比较，伪复合词在长期记忆中没有整体形式的表示，并且是“非法”组合。所有刺激都是双音节的（双词素）。通过预测低频复合词更可能组合处理，高频复合词更可能以完整形式访问来操纵词频。结果表明，低频词引起的 MMN 比伪复合词小，这支持了组合处理的预测。然而，高频词既没有发现 MMN 增强也没有发现 MMN 减少。这些结果在假设同时访问单词和词素的双重途径模型框架内进行了解释。
