Positional effects in the lexical retuning of speech perception
Positional effects in the lexical retuning of speech perception
复制标题
DOI：
10.3758/s13423-011-0129-2
复制
发表时间：
2011-10-01
影响因子：
3.5
通讯作者：
McQueen, James M.
中科院分区：
文献类型：
--
作者：
Jesse, Alexandra;McQueen, James M.
听者利用词汇知识来适应说话者的特殊发音。荷兰语的听众学会了把/s/和/f/之间的一个模棱两可的音解释为/f/，如果他们在通常以/f/结尾的荷兰语单词中听到这个音，就会把它解释为/f/，但如果他们在通常以/s/结尾的单词中听到这个音，就会把它解释为/s/。在这里，我们检查了两个位置效应在词汇引导返回。在实验1中，暴露时的歧义音总是出现在单词的开头位置（取代/f/-或/s/-开头的单词的第一个音）。没有发现退货。在实验2中，同样的模棱两可的声音总是在播放过程中出现。在这里，回归被发现。因此，词汇引导的感知学习似乎只有在词汇知识可用的情况下才会可靠地出现，因为待调谐的片段最初是被处理的。然而，在这些条件下，词汇引导的回归是位置独立的：它跨越音节位置。因此，词汇回归有助于将来识别单词中出现的特定声音。
Listeners use lexical knowledge to adjust to speakers' idiosyncratic pronunciations. Dutch listeners learn to interpret an ambiguous sound between /s/and /f/ as /f/ if they hear it word-finally in Dutch words normally ending in /f/, but as /s/ if they hear it in normally /s/-final words. Here, we examined two positional effects in lexically guided retuning. In Experiment 1, ambiguous sounds during exposure always appeared in word-initial position (replacing the first sounds of /f/- or /s/-initial words). No retuning was found. In Experiment 2, the same ambiguous sounds always appeared word-finally during exposure. Here, retuning was found. Lexically guided perceptual learning thus appears to emerge reliably only when lexical knowledge is available as the to-be-tuned segment is initially being processed. Under these conditions, however, lexically guided retuning was position independent: It generalized across syllabic positions. Lexical retuning can thus benefit future recognition of particular sounds wherever they appear in words.