Differential acquisition of American Sign Language and Amerind signs was compared among moderately to severely mentally handicapped adolescents (n=10) in a residential training facility. Results showing both quicker acquisition and stronger retention of Amerind signs were thought to result from the more concrete and less complex nature of Amerind…

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)