Influences of phonetic identification and category goodness on American listeners’ perception of /r/ and /l/
作者:
Paul Iverson,
Patricia K. Kuhl,
期刊:
The Journal of the Acoustical Society of America
(AIP Available online 1996)
卷期:
Volume 99,
issue 2
页码: 1130-1140
ISSN:0001-4966
年代: 1996
DOI:10.1121/1.415234
出版商: Acoustical Society of America
关键词: ACOUSTIC MEASUREMENTS;AUDITORY ORGANS;SENSITIVITY;SPEECH SYNTHESIZERS;STIMULI
数据来源: AIP
摘要:
Recent experiments have demonstrated that category goodness influences the perception of vowels [Iverson and Kuhl, J. Acoust. Soc. Am.97, 553–562 (1995)]; listeners show a perceptual magnet effect characterized by shrunken perceptual distances near excellent exemplars of vowel categories and stretched distances near poor exemplars. The present study extends this investigation by examining the relative influence of phonetic identification and category goodness on the perception of American English /r/ and /l/. Eighteen /ra/ and /la/ tokens were synthesized by varyingF2 andF3 frequencies. Adult listeners identified and rated the goodness of individual stimuli, and rated the similarity of stimulus pairs. Multidimensional scaling analyses revealed that the perceptual space was shrunk near the best exemplars of each category and stretched near the category boundary. In addition, individual differences in /r/ identification corresponded to the degree of shrinking near the best exemplars of the /r/ category. The results demonstrate that category goodness and phonetic identification both contribute to the perception of /r/ and /l/.
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