Children with autism spectrum disorder (ASD) who have native exposure to a sign language such as American Sign Language (ASL) have received almost no scientific attention. This paper reports the first studies on a sample of five native-signing children (four deaf children of deaf parents and one hearing child of deaf parents; ages 4;6 to 7;5)…

Vowel durations following the production of voiced and voiceless stop consonants produced during simultaneous communication (SC) were investigated by recording sign language users during SC and speech alone (SA). Under natural speaking conditions, or speaking alone (SA), vowels following voiced stop consonants are longer in duration than vowels…

Studies of American Sign language including functional magnetic resonance imaging of deaf signers confirms the importance of left hemisphere structures in signed language, but also the contributions of right hemisphere regions to sign language processing. A case study involving cortical stimulation mapping in a deaf signer provides evidence for…

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)

The learning of a list of 20 Blissymbols and comparable American Sign Language signs by 121 nonhandicapped undergraduate psychology students was compared. Blissymbols were learned significantly faster than manual signs, particularly in early learning trials. Results are discussed in terms of the memory requirements of the two systems. (Author/JDD)