Linnaeus Centre HEAD, Department of Behavioral Sciences and Learning, Linköping University Linköping, Sweden.
Front Psychol. 2013 Jun 19;4:359. doi: 10.3389/fpsyg.2013.00359. eCollection 2013.
This study investigated the degree to which audiovisual presentation (compared to auditory-only presentation) affected isolation point (IPs, the amount of time required for the correct identification of speech stimuli using a gating paradigm) in silence and noise conditions. The study expanded on the findings of Moradi et al. (under revision), using the same stimuli, but presented in an audiovisual instead of an auditory-only manner. The results showed that noise impeded the identification of consonants and words (i.e., delayed IPs and lowered accuracy), but not the identification of final words in sentences. In comparison with the previous study by Moradi et al., it can be concluded that the provision of visual cues expedited IPs and increased the accuracy of speech stimuli identification in both silence and noise. The implication of the results is discussed in terms of models for speech understanding.
本研究调查了视听呈现（与仅听觉呈现相比）在静音和噪声条件下对口译员识别点（IP）的影响程度，口译员需要使用门控范式正确识别言语刺激所需的时间即为口译员识别点。该研究扩展了 Moradi 等人（修订中）的研究结果，使用相同的刺激，但以视听方式而不是仅听觉方式呈现。结果表明，噪声会阻碍辅音和单词的识别（即，延迟口译员识别点并降低准确性），但不会阻碍句子中最后一个单词的识别。与 Moradi 等人之前的研究相比，可以得出结论，提供视觉线索可以加快口译员识别点，并提高言语刺激在静音和噪声环境下的识别准确性。结果的意义在言语理解模型方面进行了讨论。
