Signing systems that attempted to represent spoken language via manual signs -- some invented, and some borrowed from natural sign languages -- have historically been used in classrooms with deaf children. However, despite decades of research and use of these systems in the classroom, there is little evidence supporting their educational…

Advocates of bimodal bilingual (Bi-Bi) early intervention argue that both visual and auditory communication systems reflect optimal family and educational interactions for teachers, families, and their young children with hearing loss. The primary objective of this commentary is to highlight semantic variations noted in theoretical, ideological,…

In 1924 Jabbar Baghcheban created a manual system that employed the phonetic characteristics of spoken Persian and Perso-Arabic orthography for use in the education of deaf students (Ibrahimi 2007). This article is a first exploration of variation and change in this system as it has evolved into the Iranian manual alphabet. Data on the…

Following pre-training with everyday objects, 8 children aged from 2 to 4 years learned to produce one manual sign (fists placed one above the other, in front of body) to one stimulus and an alternative manual sign (shoulders touched with ipsilateral hands) to the other stimulus, with each of three pairs of different arbitrary wooden shapes (Set…

This article traces the sources of the estimates of the number of American Sign Language users in the United States. A variety of claims can be found in the literature and on the Internet, some of which have been shown to be unfounded but continue to be cited. In our search for the sources of the various (mis)understandings, we have found that all…

This article reviews experiments completed over the past decade at the National Technical Institute for the Deaf and the State University of New York at Geneseo concerning speech produced during simultaneous communication (SC) and synthesizes the empirical evidence concerning the acoustical and perceptual characteristics of speech in SC.…

The report describes activities and accomplishments of a project examining facilitative effects of manual signs on oral language comprehension of communication disordered but normal hearing students. The initial section details background and pre-grant studies leading up to the project effort. Studies touched upon such aspects as presentation…

Classroom communication between deaf students was modeled using a question-and-answer game. Participants consisted of student pairs that relied on spoken language, pairs that relied on American Sign Language (ASL), and mixed pairs in which one student used spoken language and one signed. Although the task encouraged students to request…

The placement of laughter in the speech of hearing individuals is not random but "punctuates" speech, occurring during pauses and at phrase boundaries where punctuation would be placed in a transcript of a conversation. For speakers, language is dominant in the competition for the vocal tract since laughter seldom interrupts spoken phrases. For…

Evaluation of a program which taught six severely mentally retarded individuals (ages 8-25) to sign interactively with each other found participants showed increased signing skills in a training play situation, generalized use of these skills in a second play situation, and maintained the trained skills over a 2 to 4 month period. (Author/DB)

The study evaluated the prevalence of stuttering in the current hearing-impaired school age population through a survey of 77 schools for the hearing impaired. Results indicated that the prevalence of stuttering in this population is 0.12 percent and that manual disfluency is perceived to be more prevalent than oral disfluency. (Author/DB)

The impact of augmentative systems on the communicative abilities of two groups of young cerebral palsied children (total N=40) who were learning either Blissymbols or Makaton Signing was evaluated. Results indicated no significant differences between the systems and slow progress and severe limitations in sign/symbol repertoires of most children.…

The study of effects of mode (manual only, manual plus oral, and manual plus oral plus aural) and language (Signed English or American Sign Language) on the comprehension of deaf students (mean age 16 years) found no significant treatment effect for mode of presentation; there was an interaction between languages and mode. (Author/DB)

The study evaluated characteristics of instructional bimodal communication in classrooms for the hearing impaired using Signing Exact English or Signed English. Findings indicated some teachers accurately and proficiently encoded semantic information in their instruction. A requirement of 80% or better voice-to-sign ratio ability is suggested for…

A quantitative model of speech development is proposed based on observations of normal hearing and congenitally deaf children. Nonlinear controls used during the development of suprasegmental and segmental aspects of speech are identified. Linguistic components of speech are ignored. The importance of the associative cortex in speech-motor control…