Semantic access to embedded words? Electrophysiological and behavioral evidence from Spanish and English
Semantic access to embedded words? Electrophysiological and behavioral evidence from Spanish and English
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DOI：
10.1016/j.bandl.2012.07.010
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发表时间：
2012-11-01
影响因子：
2.5
通讯作者：
O'Rourke, Polly L.
中科院分区：
文献类型：
--
作者：
Macizo, Pedro;Van Petten, Cyma;O'Rourke, Polly L.
许多多音节词包含不是语义单位的较短的词，如HANDICAP中的CAP和VERDURA（蔬菜）中的DURA（硬）。印刷单词之间的空间识别单词的边界，但这些嵌入的单词的虚假识别是一个潜在的更大的挑战，口语理解，这是一个挑战，是由不同的听觉单词识别模型中的不同机制处理。子音素声学差异-发音的细微差异-通常将嵌入的单词与真正的单词区分开来。我们研究了语义访问嵌入词在两种语言中具有不同的音韵呈现载体词，其次是目标相关的嵌入词和记录事件相关电位和词汇的决策时间在34西班牙语/英语双语。在大脑活动或行为中没有观察到嵌入式单词访问的证据，这不能归因于亚音素声学因素。这些数据对语音分割的模型施加了限制。(C)2012 Elsevier Inc. All rights reserved.
Many multisyllabic words contain shorter words that are not semantic units, like the CAP in HANDICAP and the DURA (hard) in VERDURA (vegetable). The spaces between printed words identify word boundaries, but spurious identification of these embedded words is a potentially greater challenge for spoken language comprehension, a challenge that is handled by different mechanisms in different models of auditory word recognition. Subphonemic acoustic differences - subtle differences in pronunciation - often differentiate embedded words from genuine words. We examined semantic access to embedded words in two languages with different phonology by presenting carrier words followed by targets related to the embedded words and recording event-related potentials and lexical decision times in 34 Spanish/English bilinguals. No evidence of embedded word access was observed in brain activity or behavior, and this could not be attributed to subphonemic acoustic factors. The data place constraints on models of speech segmentation. (C) 2012 Elsevier Inc. All rights reserved.