The acquisition of movement skills in American Sign Language was examined longitudinally in young children, one deaf and eight hearing, of deaf parents. Although production accuracy did not improve over the 5 to 14 months of the study's duration, the number and complexity of movements produced by the children did increase. Contacting action was…

Acquisition of the location aspect of American Sign Language signs was examined in nine young hearing infants and toddlers of deaf parents. Sign locations, overall, were produced with 83.5% accuracy. Highly contrasting locations were acquired first. Location played a central role in young children's early sign language acquisition. (Author/DB)

The article gives an example of how, even though an individual's capacity to use or to learn a spoken language may be significantly impaired by brain damage, the ability to acquire a non-oral language system may remain intact. (Author/NCR)