Detecting speech-evoked cortical activity in deaf children following cochlear implantation

AbstractObjective:This retrospective study compared the cochlear implantation outcomes of first- and second-generation deaf children.Methods:The study group consisted of seven deaf, cochlear-implanted children with deaf parents. An equal number of deaf children with normal-hearing parents were selected by matched sampling as a reference group. Participants were matched based on onset and severity of deafness, duration of deafness, age at cochlear implantation, duration of cochlear implantation, gender, and cochlear implant model. We used the Persian Auditory Perception Test for the Hearing Impaired, the Speech Intelligibility Rating scale, and the Sentence Imitation Test, in order to measure participants' speech perception, speech production and language development, respectively.Results:Both groups of children showed auditory and speech development. However, the second-generation deaf children (i.e. deaf children of deaf parents) exceeded the cochlear implantation performance of the deaf children with hearing parents.Conclusion:This study confirms that second-generation deaf children exceed deaf children of hearing parents in terms of cochlear implantation performance. Encouraging deaf children to communicate in sign language from a very early age, before cochlear implantation, appears to improve their ability to learn spoken language after cochlear implantation.

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Cochlear implantation: a review of the literature and the Nijmegen results

The Journal of Laryngology & Otology ◽

10.1017/s0022215100139234 ◽

1997 ◽

Vol 111 (11) ◽

pp. 1008-1017 ◽

Cited By ~ 18

Author(s):

Mohammad Jamal A. Makhdoum ◽

Ad F. M. Snik ◽

Paul van den Broek

Keyword(s):

Cochlear Implant ◽

Hearing Aids ◽

Cochlear Implantation ◽

Sensorineural Deafness ◽

Deaf Children ◽

Subject Selection ◽

Profound Deafness ◽

Deaf Adults ◽

Adults And Children ◽

To Receive

AbstractThe field of cochlear implantation is developing rapidly. In subjects with bilateral profound deafness who gain no benefit from conventional hearing aids the aim of cochlear implantation is to provide a means for them to receive auditory sensations. Throughout the world, most cochlear implant centres are still continuing their research efforts to improve the results with this technique. Although it is still difficult to predict how an individual will perform with a cochlear implant, the success of cochlear implantation can no longer be denied. In this paper, we review some recent papers and reports, and the results of the various Nijmegen cochlear implant studies. Data about subject selection, examinations, surgery and the outcome are discussed. Our results were in good agreement with those of other authors. It can be concluded once again that cochlear implantation is an effective treatment for postlingually deaf adults and children, and for prelingually (congenital or acquired) deaf children with profound bilateral sensorineural deafness.

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