Department of Linguistics and Language Development, San José State University, San José, California 95192-0093, USA.
Department of Psychology, San José State University, San José, California 95192-0120,
JASA Express Lett. 2023 Aug 1;3(8). doi: 10.1121/10.0020515.
Listeners use lexical information to guide the mapping between acoustic signals and representations of speech sound. This process is known as perceptual learning and results in recalibration of phonetic categories. The current work examines the effect of lexical frequency of exposure words on the magnitude of recalibration. Results showed comparable levels of perceptual learning for listeners exposed to high-frequency vs low-frequency critical words, in line with empirical findings that suggest that if frequency affects recalibration, such effects may be difficult to detect. These findings warrant further empirical probing and theoretical characterization of the role of lexical frequency in perceptual learning.
听者利用词汇信息来指导语音信号与语音表示之间的映射。这个过程被称为感知学习，其结果是语音类别的重新校准。当前的工作考察了暴露词的词汇频率对重新校准程度的影响。结果表明，高频和低频关键词暴露的听者表现出相当水平的感知学习，这与实证发现一致，即如果频率影响重新校准，那么这种影响可能难以察觉。这些发现需要进一步的实证研究和对词汇频率在感知学习中的作用的理论描述。
