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PubMed2001

It's All a Matter of Timing: Sign Visibility and Sign Reference in Deaf and Hearing Mothers of 18-Month-Old Children.

The signed and spoken language produced by 14 mothers to their 18-month-old children during free play was analyzed. All the children had profound prelingual deafness. Seven of the mothers were profoundly deaf and fluent users of British Sign Language (BSL) or Auslan. The other seven were hearing and had enrolled in a signing program. Maternal signed utterances were classified according to whether they were made in the child's line of sight and whether they had a salient context; that is, they referred to an object or event at the child's current focus of attention. Spoken utterances were coded by word length. Comparisons between the two groups showed that both deaf and hearing mothers produced a majority of single-sign utterances (rather than utterances containing two or more signs). Deaf mothers also produced a majority of single-word spoken utterances, whereas the hearing mothers produced a significantly greater proportion of multiword utterances. As predicted, deaf mothers were more successful than hearing mothers in presenting signed utterances with a salient context that were visible to their children. Across the group as a whole, the total number of visible and salient signed utterances produced in 10 minutes was positively correlated with the total number of occasions on which mothers successfully redirected their child's attention or the child spontaneously turned to look at the mother. This suggests that deaf children who are visually attentive to their mothers receive a greater number of visible signed utterances with a salient context. I argue that this provides a more secure context for early language development.

Journal Article↗
PubMed1994

A naturalistic approach to the validation of facilitated communication.

By manipulating the facilitator's knowledge of a student's just-completed activity, facilitated communication ability and the extent of guiding were assessed. Seven students diagnosed with mental retardation and their facilitators participated in the study. All 7 students were purported at the start of the study to be communicating via facilitation at levels far above what was previously thought possible given their level of intellectual ability. A large degree of facilitator guiding was revealed for each of the 4 facilitators. Minimal evidence of facilitation was found for 4 of the 7 students. One of the 7 students demonstrated validated facilitated communication on two trials.

Adolescent↗
PubMed1992

Intervention and the hearing-impaired child--an evaluation of outcome.

The investigation was performed in order to evaluate the outcome of intervention in preschool age. The material comprises a cohort of 138 children, 76 boys and 62 girls, born during 1970-1980, living in the Copenhagen County at the time of data collection (1987), all suffering from predominantly congenital/early acquired hearing disability (i.e. hearing level greater than or equal to 35 dB HL for the average of 0.5-4 kHz on the better hearing ear). The type of school attended is used as a measure for outcome of preschool intervention. It was demonstrated that 49% attended normal class (speech), 21% attended special units (total communication), and 24% attended the school for the deaf (sign/manual). By subdivision the children (n = 75) with a hearing loss less than 75 dB HL attended normal class in 80%; 7% attended special units. The children (n = 63) with hearing loss greater than or equal to 75 dB HL attended normal class in 11%, special units in 33%, and school for the deaf in 52%. An early identification of the hearing loss was found to facilitate attendance of normal class in the group with a hearing loss less than 75 dB HL. Among the children at the school for the deaf 84% had speaking parents. The frequency of the causes of hearing loss differs significantly in the special units, when compared to the total cohort. It is concluded that the outcome of preschool intervention is related predominantly to the degree of hearing loss; that an early intervention in the group of children with hearing loss less than 75 dB HL facilitates the attendance of normal class; that the frequency of the causes of hearing impairment is different in the special units.

Adolescent↗
PubMed2002

Thought before language: how deaf and hearing children express motion events across cultures.

Do children come to the language-learning situation with a predetermined set of ideas about motion events that they want to communicate? If so, is the expression of these ideas modified by exposure to a language model within a particular cultural context? We explored these questions by comparing the gestures produced by Chinese and American deaf children who had not been exposed to a usable conventional language model with the speech of hearing children learning Mandarin or English. We found that, even in the absence of any conventional language model, deaf children conveyed the central elements of a motion event in their communications. More surprisingly, deaf children growing up in an American culture used their gestures to express motion events in precisely the same ways as deaf children growing up in a Chinese culture. In contrast, hearing children in the two cultures expressed motion events differently, in accordance with the languages they were learning. The American children obeyed the patterns of English and rarely omitted words for figures or agents. The Chinese children had more flexibility as Mandarin permits (but does not demand) deletion. Interestingly, the Chinese hearing children's descriptions of motion events resembled the deaf children's descriptions more closely than did the American hearing children's. The thoughts that deaf children convey in their gestures thus may serve as the starting point and perhaps a default for all children as they begin the process of grammaticization--thoughts that have not yet been filtered through a language model.

Child, Preschool↗
PubMed1998

The picture exchange communication system.

The Picture Exchange Communication System (PECS) was developed as a means to teach children with autism and related developmental disabilities a rapidly acquired, self-initiating, functional communication system. Its theoretical roots combine principles from applied behavior analysis and guidelines established within the field of alternative and augmentative communication. This approach has several potential advantages relative to imitation-based strategies (both vocal and gestural) and symbol selection strategies. The system begins with the exchange of simple icons but rapidly builds "sentence" structure. The system also emphasizes developing the request function prior to developing responding to simple questions and commenting. The development of requesting with a sentence structure also permits the rapid development of attributes more traditionally taught within a receptive mode. The relationship between the introduction of PECS and various other behavioral issues (i.e., social approach and behavior management) as well as its relationship to the codevelopment of speech are reviewed.

Autistic Disorder↗
PubMed1990

Prelingual deafness and psychiatry.

This article provides an introduction to the neglected area of psychiatry and prelingual deafness. 'Deafness' refers to prelingual profound deafness except where indicated, although many of the observations apply to some extent to prelingually partially hearing people.

Communication↗