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Anatomical biasing and clicks: Evidence from biomechanical modeling

Moisik, S. R., & Dediu, D. (2017). Anatomical biasing and clicks: Evidence from biomechanical modeling. Journal of Language Evolution, 2(1), 37-51. doi:10.1093/jole/lzx004.
It has been observed by several researchers that the Khoisan palate tends to lack a prominent alveolar ridge. A biomechanical model of click production was created to examine if these sounds might be subject to an anatomical bias associated with alveolar ridge size. Results suggest the bias is plausible, taking the form of decreased articulatory effort and improved volume change characteristics; however, further modeling and experimental research is required to solidify the claim.

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