Brouwer Susanne, Bradlow Ann R
Linguistics Department, Northwestern University, 2016 Sheridan Road, Evanston, IL, 60208, USA.
J Psycholinguist Res. 2016 Oct;45(5):1151-60. doi: 10.1007/s10936-015-9396-9.
This study examined the temporal dynamics of spoken word recognition in noise and background speech. In two visual-world experiments, English participants listened to target words while looking at four pictures on the screen: a target (e.g. candle), an onset competitor (e.g. candy), a rhyme competitor (e.g. sandal), and an unrelated distractor (e.g. lemon). Target words were presented in quiet, mixed with broadband noise, or mixed with background speech. Results showed that lexical competition changes throughout the observation window as a function of what is presented in the background. These findings suggest that, rather than being strictly sequential, stream segregation and lexical competition interact during spoken word recognition.
本研究考察了噪声和背景语音中口语单词识别的时间动态。在两项视觉世界实验中，以英语为母语的参与者在看着屏幕上的四张图片时收听目标单词：一个目标（如蜡烛）、一个起始竞争者（如糖果）、一个押韵竞争者（如凉鞋）和一个无关干扰物（如柠檬）。目标单词分别在安静环境中呈现、与宽带噪声混合呈现或与背景语音混合呈现。结果表明，在整个观察窗口中，词汇竞争会根据背景中呈现的内容而变化。这些发现表明，在口语单词识别过程中，流分离和词汇竞争并非严格按顺序进行，而是相互作用的。
