Lexical effects on the phonetic categorization of speech: the role of acoustic structure.
Lexical effects on the phonetic categorization of speech: the role of acoustic structure.
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词汇对语音语音分类的影响：声学结构的作用。
DOI：
10.1037//0096-1523.15.3.567
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Blumstein,SE
中科院分区：
文献类型：
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作者：
Burton,MW;Baum,SR;Blumstein,SE
本研究旨在探讨声学参数对语音语音分类的词汇效应的影响程度。实验1旨在重复以前的研究结果。两个测试连续创建不同的声音开始时间。识别和反应时（RT）范围数据的结果表明，在语音边界的词汇状态的效果，但只在最慢的RT范围内，这表明语音分类词汇的影响是后知觉。实验2探讨了当刺激连续体更接近自然语音的参数值时，是否会出现词汇效应。识别和RT范围数据都表明词汇效应消失。这些结果表明，如果不注意刺激的声学结构，自上而下的处理在语音分类中的作用可能会被过分强调。（PsycInfo数据库记录（c）2016 APA，保留所有权利）
This study examines the extent to which acoustic parameters contribute to lexical effects on the phonetic categorization of speech. Experiment 1 was designed to replicate previous findings. Two test continua were created varying in voice onset time. Results of both identification and reaction time (RT) range data showed an effect of lexical status at the phonetic boundary, but only in the slowest RT ranges, suggesting that lexical effects on phonetic categorization are postperceptual. Experiment 2 explored whether the lexical effect would emerge when the stimulus continua more nearly approximated the parameter values of natural speech. Both identification and RT range data indicated that the lexical effect disappeared. These results suggest that without attention to the acoustic structure of the stimuli, the role of top–down processing in phonetic categorization may be overemphasized.(PsycINFO Database Record (c) 2016 APA, all rights reserved)