Freedman Skott E, Barlow Jessica A
Department of Speech-Language Pathology and Audiology, Ithaca College, USA.
School of Speech, Language, and Hearing Sciences, San Diego State University, USA.
Int J Engl Linguist. 2013 Apr 1;3(2):1-13. doi: 10.5539/ijel.v3n2p1.
Presumable lexical competition has been found to result in higher perceptual accuracy for words with few versus many neighbors. Previous studies have typically only analyzed the lexical-semantic level, however. In order to also explore the possibility of phonological effects, a word repetition task was administered to 46 typical adults in which 80 stimuli differed only in neighborhood density. In contrast to previous studies, verbal responses were elicited in order to analyze productions holistically and segmentally at the phonological level. An additional error analysis examined differences in neighborhood density between target words and substitutions. Findings revealed that words with more neighbors recognition, and were more accurately repeated than those with fewer neighbors. When a target word was misperceived, its substitution tended to be higher in neighborhood density, unrelated to word frequency. In order to interpret these results, an account of lexical competition is re-visited with consideration of characteristics of the lexicon discovered using graph theory (Vitevitch, 2008).
据推测，词汇竞争已被发现会导致与邻居较少的词相比，邻居较多的词具有更高的感知准确性。然而，以往的研究通常只分析了词汇语义层面。为了探究语音效应的可能性，对46名典型成年人进行了一项单词重复任务，其中80个刺激仅在邻域密度上有所不同。与以往研究不同的是，引出了言语反应，以便在语音层面整体和分段地分析产出。一项额外的错误分析检查了目标词和替代词在邻域密度上的差异。研究结果表明，邻居较多的词比邻居较少的词更容易被识别，并且重复得更准确。当一个目标词被误认时，其替代词的邻域密度往往更高，与词频无关。为了解释这些结果，我们重新审视了词汇竞争的观点，并考虑了使用图论发现的词汇特征（维特维奇，2008年）。
