Online comprehension of naturally spoken and perceptually degraded words was assessed in 95 children ages 12 to 31 months. The time course of word recognition was measured by monitoring eye movements as children looked at pictures while listening to familiar target words presented in unaltered, time-compressed, and low-pass-filtered forms. Success in word recognition varied with age and level of vocabulary development, and with the perceptual integrity of the word. Recognition was best overall for unaltered words, lower for time-compressed words, and significantly lower in low-pass-filtered words. Reaction times were fastest in compressed, followed by unaltered and filtered words. Results showed that children were able to recognize familiar words in challenging conditions and that productive vocabulary size was more sensitive than chronological age as a predictor of children's accuracy and speed in word recognition.

中文翻译：

---

婴儿期单词理解的动态：时间、准确性和抗声学退化的发展

在 95 名 12 至 31 个月大的儿童中评估了对自然口语和感知退化词的在线理解能力。单词识别的时间过程是通过监测眼睛运动来测量的，因为孩子们在听以不变、时间压缩和低通滤波形式呈现的熟悉的目标单词的同时看图片。单词识别的成功率因年龄和词汇发展水平以及单词的感知完整性而异。整体上未更改的单词的识别效果最好，时间压缩的单词的识别率较低，而低通过滤的单词的识别率明显较低。压缩的反应时间最快，其次是未更改和过滤的单词。