Mouth morphemes in sign language

Mouth movement is part of non-manual markers in sign language. It conveys an adjective, adverb, or another descriptive meaning in association with an ASL word.

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Mouth morphemes used in sign language


Bickford, J. Albert and Fraychineaud, Kathy. "Mouth Morphemes in ASL: A closer look." 2006.

Deaf Tend Your: mouth morphemes in ASL
By Byron Bridges and Melanie Metzger. This 1996 book including the videos provides information about the non-manual signals in ASL.