Dufour Sophie, Nguyen Noël
Aix-Marseille University, CNRS, LPL, UMR 7309.
Brain and Language Research Institute, Aix-Marseille University.
Cogn Sci. 2017 Nov;41(8):2221-2233. doi: 10.1111/cogs.12472. Epub 2016 Dec 10.
In this study, we examined whether the lexical competition process embraced by most models of spoken word recognition is sensitive to talker-specific information. We used a lexical decision task and a long lag priming experiment in which primes and targets sharing all phonemes except the last one (e.g., /bagaR/"fight" vs. /bagaƷ/"luggage") were presented in two separate blocks of stimuli. In Experiment 1, the competitor prime block was presented only once to listeners, and no modulation of the competitor priming effect as a function of a talker change between the primes and targets was observed. However, attenuation in the competitor priming effect in the case of a talker change between the primes and targets was observed in Experiment 2 in which the competitor prime block was presented five times to listeners. We discuss our findings in reference to hybrid models of spoken word recognition in which repetition of words with the same talker could be a key factor in the formation and access to talker-dependent representations.
在本研究中，我们考察了大多数口语单词识别模型所包含的词汇竞争过程是否对特定说话者信息敏感。我们使用了词汇判断任务和长时滞后启动实验，其中除最后一个音素外所有音素都相同的启动词和目标词（例如，/bagaR/表示“fight”，/bagaƷ/表示“luggage”）被呈现在两个单独的刺激块中。在实验1中，竞争启动词块仅向听众呈现一次，未观察到竞争启动效应随启动词和目标词之间说话者变化的调制。然而，在实验2中，当竞争启动词块向听众呈现五次时，观察到了启动词和目标词之间说话者变化情况下竞争启动效应的衰减。我们参照口语单词识别的混合模型来讨论我们的发现，在该模型中，同一说话者的单词重复可能是形成和获取依赖于说话者的表征的关键因素。
