The Role of Cued Speech in Language Development of Deaf Children

Leybaert, Jacqueline; Aparicio, Mario; Alegría, Jesús

doi:10.1093/oxfordhb/9780199750986.013.0020

Cited by 10 publications

(19 citation statements)

References 43 publications

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“…However, to the best of our knowledge, this is the first time that it has been demonstrated that early CS users reach a higher level of speechreading than non‐CS deaf users. Through an early and intensive use of CS, the deaf acquires a good level of phonological, lexical and semantic processing of the French oral, similar to the hearing level, and better than most of the non early CS users (Leybaert & Alegria, 2003; Leybaert et al ., 2010). Therefore, the higher performance in the CS group could possibly be explained by better language development at the lexical and syntactical levels.…”

Section: Discussionmentioning

confidence: 99%

“…1). By receiving and correctly processing this set of visual handshapes and hand placements, the individual could acquire all the phonological, semantic and syntactic information of the oral language, in the absence of the auditory modality (Leybaert, Alegria, Hage & Charlier, 1998; Leybaert, Aparicio & Alegria, 2010). Studies have shown that subjects exposed to CS at an early age (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Early experience of Cued Speech enhances speechreading performance in deaf

Aparicio¹,

Peigneux²,

Charlier³

et al. 2011

Scandinavian J Psychology

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It is known that deaf individuals usually outperform normal hearing subjects in speechreading; however, the underlying reasons remain unclear. In the present study, speechreading performance was assessed in normal hearing participants (NH), deaf participants who had been exposed to the Cued Speech (CS) system early and intensively, and deaf participants exposed to oral language without Cued Speech (NCS). Results show a gradation in performance with highest performance in CS, then in NCS, and finally NH participants. Moreover, error analysis suggests that speechreading processing is more accurate in the CS group than in the other groups. Given that early and intensive CS has been shown to promote development of accurate phonological processing, we propose that the higher speechreading results in Cued Speech users are linked to a better capacity in phonological decoding of visual articulators.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Early experience of Cued Speech enhances speechreading performance in deaf

Aparicio¹,

Peigneux²,

Charlier³

et al. 2011

Scandinavian J Psychology

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“…Cued Speech enhances speech perception through the visual modality, the acquisition of vocabulary and morphosyntax, and metalinguistic development, as well as the acquisition of reading and spelling (see Leybaert & Alegria, 2003;Leybaert, Colin, & LaSasso, 2010).…”

Section: Discussionmentioning

confidence: 99%

Cued Speech for Enhancing Speech Perception and First Language Development of Children With Cochlear Implants

Leybaert

LaSasso

2010

Trends in Amplification

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Nearly 300 million people worldwide have moderate to profound hearing loss. Hearing impairment, if not adequately managed, has strong socioeconomic and affective impact on individuals. Cochlear implants have become the most effective vehicle for helping profoundly deaf children and adults to understand spoken language, to be sensitive to environmental sounds, and, to some extent, to listen to music. The auditory information delivered by the cochlear implant remains non-optimal for speech perception because it delivers a spectrally degraded signal and lacks some of the fine temporal acoustic structure. In this article, we discuss research revealing the multimodal nature of speech perception in normally-hearing individuals, with important inter-subject variability in the weighting of auditory or visual information. We also discuss how audio-visual training, via Cued Speech, can improve speech perception in cochlear implantees, particularly in noisy contexts. Cued Speech is a system that makes use of visual information from speechreading combined with hand shapes positioned in different places around the face in order to deliver completely unambiguous information about the syllables and the phonemes of spoken language. We support our view that exposure to Cued Speech before or after the implantation could be important in the aural rehabilitation process of cochlear implantees. We describe five lines of research that are converging to support the view that Cued Speech can enhance speech perception in individuals with cochlear implants.

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“…However, the overall effect of CS on early spoken language development extends beyond this (Leybaert et al, 2010, 2013, 2015). The empirical evidence collected in English, French, Spanish, Farsi and even Amharic (national language of Ethiopia) shows that congenitally deaf children who were exposed to CS from their earliest months by their parents and other caregivers can reach levels of mastery of spoken (phonology, lexical, morpho-syntactic) language and written language (word reading, reading comprehension, spelling) within range of age-matched hearing peers when tested at school age.…”

Section: Introductionmentioning

confidence: 99%

The Neural Basis of Speech Perception through Lipreading and Manual Cues: Evidence from Deaf Native Users of Cued Speech

et al. 2017

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We present here the first neuroimaging data for perception of Cued Speech (CS) by deaf adults who are native users of CS. CS is a visual mode of communicating a spoken language through a set of manual cues which accompany lipreading and disambiguate it. With CS, sublexical units of the oral language are conveyed clearly and completely through the visual modality without requiring hearing. The comparison of neural processing of CS in deaf individuals with processing of audiovisual (AV) speech in normally hearing individuals represents a unique opportunity to explore the similarities and differences in neural processing of an oral language delivered in a visuo-manual vs. an AV modality. The study included deaf adult participants who were early CS users and native hearing users of French who process speech audiovisually. Words were presented in an event-related fMRI design. Three conditions were presented to each group of participants. The deaf participants saw CS words (manual + lipread), words presented as manual cues alone, and words presented to be lipread without manual cues. The hearing group saw AV spoken words, audio-alone and lipread-alone. Three findings are highlighted. First, the middle and superior temporal gyrus (excluding Heschl’s gyrus) and left inferior frontal gyrus pars triangularis constituted a common, amodal neural basis for AV and CS perception. Second, integration was inferred in posterior parts of superior temporal sulcus for audio and lipread information in AV speech, but in the occipito-temporal junction, including MT/V5, for the manual cues and lipreading in CS. Third, the perception of manual cues showed a much greater overlap with the regions activated by CS (manual + lipreading) than lipreading alone did. This supports the notion that manual cues play a larger role than lipreading for CS processing. The present study contributes to a better understanding of the role of manual cues as support of visual speech perception in the framework of the multimodal nature of human communication.

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The Role of Cued Speech in Language Development of Deaf Children

Cited by 10 publications

References 43 publications

Early experience of Cued Speech enhances speechreading performance in deaf

Early experience of Cued Speech enhances speechreading performance in deaf

Cued Speech for Enhancing Speech Perception and First Language Development of Children With Cochlear Implants

The Neural Basis of Speech Perception through Lipreading and Manual Cues: Evidence from Deaf Native Users of Cued Speech

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