Articulatory asymmetries.

@article{Hamlet1986ArticulatoryA,
  title={Articulatory asymmetries.},
  author={Sandra L. Hamlet and H. Timothy Bunnell and B Struntz},
  journal={The Journal of the Acoustical Society of America},
  year={1986},
  volume={79 4},
  pages={1164-9}
}
Tongue contact patterns for /s/ and /l/ were investigated using dynamic palatography. Both spatial and temporal asymmetries were commonly found extending into the vocalic transitions for these consonants. Implications for the adequacy of tongue motion data taken in a single midsagittal plane are discussed, as well as for articulatory interpretation of speech signals and speaker recognition applications.