Speech and language development following cochlear implantation

Ouellet, Christine; Cohen, Henrí

doi:10.1016/s0911-6044(99)00018-4

Cited by 25 publications

(21 citation statements)

References 54 publications

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“…The studies investigating factors influencing outcomes of pediatric CIs demonstrated that age at implantation, parental education, family income, duration of deafness, communication mode, expectations of parents, experience of the therapists and the participation and support of the child's family during rehabilitation are essential factors that determine linguistic improvement [33,34]. In this study, close to 90% of the subjects' came from the countryside with only 9% of their parents having a high school education while the remaining parents had poorer level of education.…”

Section: Discussionmentioning

confidence: 99%

Speech performance in pediatric users of Nurotron® Venus™ cochlear implants

Dong

Yan

et al. 2015

International Journal of Pediatric Otorhinolaryngology

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Section: Discussionmentioning

confidence: 99%

Speech performance in pediatric users of Nurotron® Venus™ cochlear implants

Dong

Yan

et al. 2015

International Journal of Pediatric Otorhinolaryngology

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“…Furthermore, studies indicate that the most successful child implantees may approach the performance levels of their normal-hearing peers in the areas of speech reception, speech production, and linguistic development ͑e.g., Ouellet and Cohen, 1999;Uchanski and Geers, 2003;Nicholas and Geers, 2007͒. However, not all deaf persons are able to be implanted or to achieve benefits from implantation.…”

Section: Introductionmentioning

confidence: 99%

Measures of tactual detection and temporal order resolution in congenitally deaf and normal-hearing adults

Moallem

Reed

Braida

2010

The Journal of the Acoustical Society of America

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To guide the development of tactile speech aids, tactual detection and temporal order discrimination by congenitally deaf and normal-hearing adults have been examined. Tactual detection thresholds for sinusoidal vibrations between 2 and 300 Hz were measured at the left thumb and index finger using an adaptive paradigm. Temporal onset-and offset-order discrimination were tested using stimuli of 50 Hz at the thumb and 250 Hz at the index finger, delivered asynchronously and varied independently in amplitude and duration. Mean detection thresholds for the deaf and normal-hearing groups did not differ significantly at any frequency tested. Temporal onset-order discrimination thresholds varied widely, particularly among congenitally deaf individuals, but no statistically significant difference was found between group means. Both experimental groups exhibited a broad range of discrimination thresholds for temporal offset-order, and mean thresholds did not differ significantly. On the whole, tactual offset-order thresholds were substantially higher than onset-order thresholds. Differences in the relative levels of paired stimuli systematically affected sensitivity to both onset-and offset-orders in most subjects. Differences in the relative durations of paired stimuli had little effect on onset-order discrimination, but had a robust effect on offset-order discrimination thresholds, which was consistent across all subjects.

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“…The primary role of the cochlear implant is to enable speech perception [Quellect and Cohen, 1999;Staller et al, 1991;Haensel et al, 2005], and improvements in speech perception are often accompanied by gains in other important skills, particularly oral language development [Svirsky et al, 2000;Richter et al, 2002]. Furthermore, behavioral and social benefits, along with improvements in cognitive skills, have been reported in cochlear implant users.…”

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confidence: 99%

Intellectual Ability of Mandarin-Speaking Children Using Cochlear Implants

Wu¹,

Lee

Hwang

et al. 2008

Audiol Neurotol

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The aim of this study was to assess the verbal and performance intelligence of young Mandarin-speaking cochlear implant users with the Wechsler Intelligence Scale for Children (WISC). We also analyzed whether related factors helped develop verbal and performance IQs. We studied 60 children implanted with Nucleus 24 devices; the children represented a consecutive sample of every implantee aged 6 or older from 2002 to 2006. All subjects had 1 year to 8 years and 7 months of implant experience. Five children with known neurological, developmental delay and multiple handicaps were excluded. Intellectual functions were evaluated using the Mandarin version of the WISC-III, which includes 5 subsets for verbal IQ (information, comprehension, similarities, arithmetic and vocabulary) and 5 subsets for performance IQ (picture completion, picture arrangement, block design, object assembly and coding). After conversion, we found that the mean verbal IQ was 85.1 ± 19.9 (range 56–133), and the mean performance IQ was 99.2 ± 15.9 (range 61–131). The distribution of verbal IQ was significantly different from that of the hearing population. A much larger proportion (32%) falls into the category of ‘intellectual deficiency’ and a relatively smaller proportion in the ‘average’ and ‘above average’ level. As for performance IQ, the distribution was not significantly different from the norms. Regarding the possibly related factors, univariate and multivariate linear regression showed that the verbal IQ was significantly affected by gender (female > male, p = 0.004), side of implantation (bilateral > left > right, p = 0.017) and two speech test scores (PB score, p = 0.036; sentence, p = 0.002), but not by age at implantation (p = 0.621) or length of implant usage (p = 0.480). Only a moderate correlation (r = 0. 49) was found between verbal and performance IQ. In conclusion, we have demonstrated that the performance IQ for the cochlear implant users is not different from their counterparts with normal hearing. However, the distribution of verbal IQ significantly shifts to the left. Our findings suggest that the verbal IQ test may just be another measurement of spoken language outcomes or learning skills and therefore may not represent the ‘true intelligence’ of these cochlear implant users.

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Speech and language development following cochlear implantation

Cited by 25 publications

References 54 publications

Speech performance in pediatric users of Nurotron® Venus™ cochlear implants

Speech performance in pediatric users of Nurotron® Venus™ cochlear implants

Measures of tactual detection and temporal order resolution in congenitally deaf and normal-hearing adults

Intellectual Ability of Mandarin-Speaking Children Using Cochlear Implants

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