On the other hand, the subjects could hardly point out the Chinese version while the learned English word was played, which was similar to the results of unlearned words and revealed that the effect of learning during sleep was not significant in the explicit memory test. 另外发现被试几乎不能在播放学过的英语词时说出中文对译词,与未学过的词对相比没有显著差别,提示睡眠学习效果在外显记忆测验中不明显。