Department of History and Philosophy of Science.
Department of Special Needs Education.
J Exp Psychol Hum Percept Perform. 2021 Jun;47(6):830-851. doi: 10.1037/xhp0000929.
According to a popular model of speech production, stress is underspecified in the lexicon, that is, it is specified only for words with stress patterns other than the default, termed the "default metrics" assumption. Alternatively, stress may be fully specified in the lexicon as part of every lexical representation. In the current study the two accounts are tested in the perceptual domain using behavioral and eye-tracking data in Greek. In a first experiment, cross-modal fragment priming was used in a lexical-decision task. According to default metrics, priming should occur for targets with antepenultimate- or final-syllable stress but not for targets with the default penultimate-syllable stress. The same word pairs were used in two subsequent visual world experiments. Default metrics predict an asymmetric pattern of results, namely that incoming spoken words with the default stress pattern should inhibit the activation of lexical representations with nondefault stress, whereas the converse should not be observed; that is, spoken words with nondefault stress should not inhibit representations of words with the default stress. None of the results provided support for the idea of default metrics, leading to alternative conceptualizations regarding the representation of stress. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
根据一种流行的言语产生模型，重音在词汇中是未具体说明的，也就是说，它只针对重音模式与默认模式（称为“默认度量假设”）不同的词进行指定。或者，重音可以作为每个词汇表示的一部分在词汇中完全指定。在当前的研究中，使用希腊语的行为和眼动数据在感知领域测试了这两种解释。在第一个实验中，跨模态片段启动被用于词汇决策任务。根据默认度量假设，应针对具有前倒数第二音节重音或最后音节重音的目标进行启动，但不应针对具有默认倒数第二音节重音的目标进行启动。相同的词对用于随后的两个视觉世界实验中。默认度量假设预测出一种非对称的结果模式，即具有默认重音模式的传入口语词应该抑制具有非默认重音的词汇表示的激活，而不应观察到相反的情况；也就是说，具有非默认重音的口语词不应抑制具有默认重音的词的表示。没有任何结果支持默认度量假设的观点，从而对重音的表示提出了替代性的概念化。（PsycInfo 数据库记录（c）2021 APA，保留所有权利）。
