Obraz (86)
_UNIT _____
4
The Movement-Hold Model
GOAL
To explain the basie principles of the Movement-Hold Model SUPPLEMENTAL READING
"American Sign Language: The Phonological Base," by Scott K. Liddell and Robert E. Johnson (1989); pp. 249-289
In unit 3, we examined ways in which the labelling system devised by Stokoe cannot adequately describe the structures of signs, specifically in the areas of level of detail and sequentiality. In this unit, we will very briefly describe a system developed by Scott K. Liddell and Robert E. Johnson. We will refer to this system as the Move-ment-Hold Model. Though details of the model are numerous and complex, its basie claims about sign language structure are important. Thq basie claims reflect a perspective about the structure of signs that significantly differs from Stokoe s per-spective, and it is important to understand that difference in perspective.
The basie claim about the structure of signs in the Movement-Hold Model is that signs consist of hołd segments and movement segments that are produced sequentiallv. Information about the handshape, location, orientation, and nonmanual signals is represented in bundles of articulatory features. These bundles of articulato-ry features are similar to the ones we described in unit 3 for the sounds of spoken languages. Holds are defined as periods of time during which all aspects of the artic-ulation bundle are in a steady State; movement$ are defined as periods of time during which some aspect of the articulation is in transition. Morę than one parameter can change at once. A sign may only have a change of handshape or location, but it may have a change of both handshape and location, and these changes take place during the movement segment. For example, in the sign UNDERSTAND, only the handshape changes; in the sign FALSE, only the location changes; however, in the sign FASCINATING, both the handshape and the location change, while the sign is moving.
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