Institute for Learning & Brain Sciences, University of Washington, United States.
Brain Lang. 2012 Jun;121(3):194-205. doi: 10.1016/j.bandl.2012.03.008. Epub 2012 Apr 23.
Event Related Potentials (ERPs) were recorded from Spanish-English bilinguals (N=10) to test pre-attentive speech discrimination in two language contexts. ERPs were recorded while participants silently read magazines in English or Spanish. Two speech contrast conditions were recorded in each language context. In the phonemic in English condition, the speech sounds represented two different phonemic categories in English, but represented the same phonemic category in Spanish. In the phonemic in Spanish condition, the speech sounds represented two different phonemic categories in Spanish, but represented the same phonemic categories in English. Results showed pre-attentive discrimination when the acoustics/phonetics of the speech sounds match the language context (e.g., phonemic in English condition during the English language context). The results suggest that language contexts can affect pre-attentive auditory change detection. Specifically, bilinguals' mental processing of stop consonants relies on contextual linguistic information.
事件相关电位（ERPs）被记录在西班牙语-英语双语者（N=10）中，以测试两种语言环境下的非注意言语辨别。参与者在以英语或西班牙语安静阅读杂志时记录 ERPs。在每种语言环境下记录两种语音对比条件。在英语的音位条件下，语音代表英语中的两个不同的音位类别，但在西班牙语中代表相同的音位类别。在西班牙语的音位条件下，语音代表西班牙语中的两个不同的音位类别，但在英语中代表相同的音位类别。结果表明，当语音的声学/语音与语言环境匹配时（例如，在英语语言环境下的音位英语条件），会进行非注意的辨别。结果表明，语言环境会影响非注意的听觉变化检测。具体来说，双语者对塞音的心理处理依赖于语境中的语言信息。
