Gestural Reduction and Sound Change: An Ultrasound Study
نویسندگان
چکیده
The magnitude of the tongue tip gesture in laterals in /VlC/ sequences produced by 8 American English speakers was measured with ultrasound imaging. Gestural reduction was found for prelabial and pre-velar contexts relative to alveolar contexts. Also, for some speakers, reduction was greater for high-frequency than for low-frequency words. These patterns are tentatively interpreted as contributing to the initiation and lexical diffusion of sound changes involving /l/ vocalization.
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