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)…

This paper presents findings from a study on the use of sign supported Norwegian (SSN) in two individuals with Cri du chat syndrome (CCS). The study gives a first account of some selected aspects of production and intelligibility of SSN in CCS. Possible deviance in manual parameters, in particular inter- and/or intra-subject variation in the use…

We first review the mirror-system hypothesis on the evolution of the language-ready brain, stressing the important role of imitation and protosign in providing the scaffolding for protospeech. We then assess the role of social interaction and non-specific knowledge of language in the emergence of new sign languages in deaf communities (focusing on…

Learning to read is a major obstacle for children who are deaf. The otherwise significant role of phonology is often limited as a result of hearing loss. However, semantic knowledge may facilitate reading comprehension. One important aspect of semantic knowledge concerns semantic categorization. In the present study, the quality of the semantic…

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…

This study investigated the preservation of second formant transition acoustic cues to intelligibility in speech produced during simultaneous communication (SC) from a locus equation perspective with 12 normal hearing, experienced sign language users. Results were consistent with previous research indicating that temporal alterations produced by…

This study investigated the effects of noise and filtering on the intelligibility of speech produced during simultaneous communication (SC). Four normal hearing, experienced sign language users were recorded under SC and speech alone (SA) conditions speaking Boothroyd's forced-choice phonetic contrast material designed for measurement of speech…

We examined the influence of sign language iconicity on children's ability to describe the function of objects. Forty-eight hearing preschoolers were divided into three groups and asked to describe the function of 15 high and 15 low iconic signs. We questioned the Hearing/Verbal (H/V) group verbally, Hearing/Verbal+Sign (H/V+S) group verbally with…

Five profoundly deaf adults were recorded reading lists of individual words under three expressive modes (speech alone, speech and signs, and speech with cues). Results indicated that speech with cues produced the highest level of intelligibility, speech and signs the lowest. (Author/CL)

This study investigated the perception of voice onset time (VOT) in speech produced during simultaneous communication (SC). Four normally hearing, experienced sign language users were recorded under SC and speech alone (SA) conditions speaking stimulus words with voiced and voiceless initial consonants embedded in a sentence. Twelve…

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…

Evaluation of the ability of 12 hearing children (3-year-olds) to use iconic cues to comprehend signs indicated that resemblance of signs to their referents did not enable subjects to decipher the meaning of most signs. Results were applied to use of adapted assessment instruments with young hearing impaired children. (DB)

A study involving 12 hearing sign language users examined the effect of the signing task on temporal features of speech during simultaneous communication (SC). Results indicated longer sentence duration for SC than speech-only conditions, and longer anticipatory duration of the diphthong and interword interval preceding the experimental words.…

A study involving 20 listeners investigated the potential influence of alterations in the temporal structure of speech produced during simultaneous communication on the perception of final consonant voicing. Results found that accurate perception was not impaired by the durational changes accompanying the typically slower speech pattern of…

Novel word learning in three conditions (signed only, spoken only, signed and spoken combined) was compared for young children (N=10) with Down syndrome and mental-age matched controls. No group differences in frequency of imitations or productions were obtained. The frequency of imitations was highest in the combined condition. In the combined…