scholarly journals Acquisition of Speech by Children Who Have Prolonged Cochlear Implant Experience

1995 ◽  
Vol 38 (2) ◽  
pp. 327-337 ◽  
Author(s):  
Nancy Tye-Murray ◽  
Linda Spencer ◽  
George G. Woodworth
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Speech Production ◽  
Cochlear Implants ◽  
Age Groups ◽  
Speech Acquisition ◽  
Communication Mode ◽  
Error Patterns ◽  
Speech Error ◽  
Intelligible Speech

The four purposes of this investigation were to assess whether children acquire intelligible speech following prolonged cochlear-implant experience and examine their speech error patterns, to examine how age at implantation influences speech acquisition, to assess how speech production and speech perception skills relate, and to determine whether cochlear implant recipients who formerly used simultaneous communication (speech and manually coded English) begin to use speech without sign to communicate. Twenty-eight prelinguistically deafened children who use a Nucleus cochlear implant were assigned to one of three age groups, according to age at implantation: 2–5 yrs (N = 12), 5–8 yrs (N = 9), and 8–15 yrs (N = 7). All subjects had worn a cochlear implant for at least 24 mos, and an average of 36 mos. All subjects used simultaneous communication at the time of implantation. Subjects performed both imitative and structured spontaneous sampling speech tasks. The results permit the following conclusions: (a) children who have used a cochlear implant for at least 2 yrs acquire some intelligible speech; (b) children who receive a cochlear implant before the age of 5 yrs appear to show greater benefit in their speech production skills than children who are older, at least after a minimum of 2 yrs of use; (c) children who recognize more speech while wearing their cochlear implants are likely to speak more intelligibly; and, (d) signing does not disappear from a child’s communication mode following implantation.

scholarly journals Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant

2016 ◽  
Vol 21 (03) ◽  
pp. 206-212 ◽  
Author(s):  
Grace Ciscare ◽  
Erika Mantello ◽  
Carla Fortunato-Queiroz ◽  
Miguel Hyppolito ◽  
Ana Reis
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Statistical Difference ◽  
Hearing Aid ◽  
Age Groups ◽  
Auditory Thresholds ◽  
Caregiver Education ◽  
Auditory Speech ◽  
Hearing Aid Use

Introduction A cochlear implant in adolescent patients with pre-lingual deafness is still a debatable issue. Objective The objective of this study is to analyze and compare the development of auditory speech perception in children with pre-lingual auditory impairment submitted to cochlear implant, in different age groups in the first year after implantation. Method This is a retrospective study, documentary research, in which we analyzed 78 reports of children with severe bilateral sensorineural hearing loss, unilateral cochlear implant users of both sexes. They were divided into three groups: G1, 22 infants aged less than 42 months; G2, 28 infants aged between 43 to 83 months; and G3, 28 older than 84 months. We collected medical record data to characterize the patients, auditory thresholds with cochlear implants, assessment of speech perception, and auditory skills. Results There was no statistical difference in the association of the results among groups G1, G2, and G3 with sex, caregiver education level, city of residence, and speech perception level. There was a moderate correlation between age and hearing aid use time, age and cochlear implants use time. There was a strong correlation between age and the age cochlear implants was performed, hearing aid use time and age CI was performed. Conclusion There was no statistical difference in the speech perception in relation to the patient's age when cochlear implant was performed. There were statistically significant differences for the variables of auditory deprivation time between G3 - G1 and G2 - G1 and hearing aid use time between G3 - G2 and G3 - G1.

Differences in Children’s Sound Production When Speaking With a Cochlear Implant Turned On and Turned Off

1996 ◽  
Vol 39 (3) ◽  
pp. 604-610 ◽  
Author(s):  
Nancy Tye-Murray ◽  
Linda Spencer ◽  
Elizabeth Gilbert Bedia ◽  
George Woodworth
Keyword(s):  
Cochlear Implant ◽  
Speech Production ◽  
Cochlear Implants ◽  
Sound Production ◽  
Proprioceptive Feedback ◽  
Speech Sample ◽  
Speech Language Pathologists ◽  
Monosyllabic Words ◽  
Consonant Voicing ◽  
Vowel Height

Twenty children who have worn a Cochlear Corporation cochlear implant for an average of 33.6 months participated in a device-on/off experiment. They spoke 14 monosyllabic words three times each after having not worn their cochlear implant speech processors for several hours. They then spoke the same speech sample again with their cochlear implants turned on. The utterances were phonetically transcribed by speech-language pathologists. On average, no difference between speaking conditions on indices of vowel height, vowel place, initial consonant place, initial consonant voicing, or final consonant voicing was found. Comparisons based on a narrow transcription of the speech samples revealed no difference between the two speaking conditions. Children who were more intelligible were no more likely to show a degradation in their speech production in the device-off condition than children who were less intelligible. In the device-on condition, children sometimes nasalized their vowels and inappropriately aspirated their consonants. Their tendency to nasalize vowels and aspirate initial consonants might reflect an attempt to increase proprioceptive feedback, which would provide them with a greater awareness of their speaking behavior.

Speech Perception in Young Children Using Nucleus or Clarion Cochlear Implants: Effect of Communication Mode

2000 ◽  
Vol 109 (12_suppl) ◽  
pp. 77-79 ◽  
Author(s):  
Nancy M. Young ◽  
Kristine M. Grohne ◽  
Vincent N. Carrasco ◽  
Carolyn J. Brown
Keyword(s):  
Speech Perception ◽  
Young Children ◽  
Cochlear Implants ◽  
Communication Mode

scholarly journals Phonological Awareness and Print Knowledge of Preschool Children With Cochlear Implants

2012 ◽  
Vol 55 (3) ◽  
pp. 811-823 ◽  
Author(s):  
Sophie E. Ambrose ◽  
Marc E. Fey ◽  
Laurie S. Eisenberg
Keyword(s):  
Standard Deviation ◽  
Speech Perception ◽  
Phonological Awareness ◽  
Speech Production ◽  
Cochlear Implants ◽  
Preschool Age ◽  
Speech And Language ◽  
Sample Mean ◽  
Print Knowledge ◽  
Age Appropriate

PurposeTo determine whether preschool-age children with cochlear implants have age-appropriate phonological awareness and print knowledge and to examine the relationships of these skills with related speech and language abilities.MethodThe sample comprised 24 children with cochlear implants (CIs) and 23 peers with normal hearing (NH), ages 36 to 60 months. Children's print knowledge, phonological awareness, language, speech production, and speech perception abilities were assessed.ResultsFor phonological awareness, the CI group's mean score fell within one standard deviation of the Test of Preschool Early Literacy's (Lonigan, Wagner, Torgesen, & Rashotte, 2007) normative sample mean but was more than one standard deviation below the NH group mean. The CI group's performance did not differ significantly from that of the NH group for print knowledge. For the CI group, phonological awareness and print knowledge were significantly correlated with language, speech production, and speech perception. Together these predictor variables accounted for 34% of variance in the CI group's phonological awareness but no significant variance in their print knowledge.ConclusionsChildren with CIs have the potential to develop age-appropriate early literacy skills by preschool age but are likely to lag behind their NH peers in phonological awareness. Intervention programs serving these children should target these skills with instruction and by facilitating speech and language development.

scholarly journals Mismatch Negativity in Children with Cochlear Implant

2019 ◽  
Vol 23 (03) ◽  
pp. e292-e298
Author(s):  
Natalia Martinez Fernandes ◽  
Daniela Gil ◽  
Marisa Frasson de Azevedo
Keyword(s):  
Speech Perception ◽  
Language Development ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Family Involvement ◽  
Mismatch Negativity ◽  
Control Group ◽  
Study Group ◽  
Cross Sectional ◽  
Hearing Children

Introduction The mismatch negativity (MMN) is a negative long-latency auditory potential elicited by any discriminable change in a repetitive aspect of auditory stimulation. This evoked potential can provide cortical information about the sound processing, including in children who use cochlear implants. Objective To identify MMN characteristics regarding latency, amplitude, and wave area in cochlear implanted children and to identify associations among language development, speech perception and family involvement. Methods This is a descriptive, observational, cross-sectional study, which compared two groups: study group—children with cochlear implant, and control group—hearing children. The children were submitted to MMN evaluation with non-verbal tone burst stimulus, differing in frequency in sound field at 70 dBHL, with SmartEP equipment (Intelligent Hearing Systems, Miami, FL, USA). Speech perception and language development questionnaires were also applied, and the family participation in the rehabilitation process was classified. Results The occurrence of MMN was 73.3% for the control group and 53.3% for the study group. Values of latency, amplitude and area of MMN of children using cochlear implants were similar to those of hearing children, and did not differ between groups. The occurrence of MMN was not correlated to the variables of hearing, language and family categories. Conclusion Children with cochlear implants showed similar MMN responses to those of the children in the control group, with mean latency, amplitude and area of 208.9 ms (±12.8), -2.37 μV (±0.38) and 86.5 μVms (±23.4), respectively. There was no correlation between the presence of MMN and children's performance in the auditory and language development tests or family involvement during rehabilitation.

Speech Perception with a Single-Channel Cochlear Implant

1990 ◽  
Vol 33 (2) ◽  
pp. 229-237 ◽  
Author(s):  
Arlene Earley Carney ◽  
Marjorie Kienle ◽  
Richard T. Miyamoto
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Single Channel ◽  
Performance Level ◽  
The Subject ◽  
Overall Performance

Suprasegmental and segmental speech perception tasks were administered to 8 patients with single-channel cochlear implants. Suprasegmental tasks included the recognition of syllable number, syllabic stress, and intonation. Segmental tasks included the recognition of vowels and consonants in three modalities: visual only, implant only, and visual + implant. Results were compared to those obtained from artificially deafened adults using a single-channel vibrotactile device (Carney, 1988; Carney & Beachler, 1986). The patterns of responses for both suprasegmental and segmental tasks were highly similar for both groups of subjects, despite differences between the characteristics of the subject samples. These results suggest that single-channel sensory devices, whether they be cochlear implants or vibrotactile aids, produce similar patterns of speech perception errors, even when differences are observed in overall performance level.

scholarly journals An Attempt to Improve Bilateral Cochlear Implants by Increasing the Distance between Electrodes and Providing Complementary Information to the Two Ears

2010 ◽  
Vol 21 (01) ◽  
pp. 052-065 ◽  
Author(s):  
Richard S. Tyler ◽  
Shelley A. Witt ◽  
Camille C. Dunn ◽  
Ann Perreau ◽  
Aaron J. Parkinson ◽  
...  
Keyword(s):  
Speech Perception ◽  
Cochlear Implant ◽  
Cochlear Implants ◽  
Speech Processing ◽  
Processing Strategy ◽  
Bilateral Cochlear Implants ◽  
Channel Interaction ◽  
Consonant Recognition ◽  
Bilateral Cochlear Implant ◽  
Input Spectrum

Objectives: The purpose of this investigation was to determine if adult bilateral cochlear implant recipients could benefit from using a speech processing strategy in which the input spectrum was interleaved among electrodes across the two implants. Design: Two separate experiments were conducted. In both experiments, subjects were tested using a control speech processing strategy and a strategy in which the full input spectrum was filtered so that only the output of half of the filters was audible to one implant, while the output of the alternative filters was audible to the other implant. The filters were interleaved in a way that created alternate frequency “holes” between the two cochlear implants. Results: In experiment one, four subjects were tested on consonant recognition. Results indicated that one of the four subjects performed better with the interleaved strategy, one subject received a binaural advantage with the interleaved strategy that they did not receive with the control strategy, and two subjects showed no decrement in performance when using the interleaved strategy. In the second experiment, 11 subjects were tested on word recognition, sentences in noise, and localization (it should be noted that not all subjects participated in all tests). Results showed that for speech perception testing one subject achieved significantly better scores with the interleaved strategy on all tests, and seven subjects showed a significant improvement with the interleaved strategy on at least one test. Only one subject showed a decrement in performance on all speech perception tests with the interleaved strategy. Out of nine subjects, one subject preferred the sound quality of the interleaved strategy. No one performed better on localization with the interleaved strategy. Conclusion: Data from this study indicate that some adult bilateral cochlear implant recipients can benefit from using a speech processing strategy in which the input spectrum is interleaved among electrodes across the two implants. It is possible that the subjects in this study who showed a significant improvement with the interleaved strategy did so because of less channel interaction; however, this hypothesis was not directly tested.

scholarly journals Syntactic abilities among Marathi speaking children with hearing impairment using cochlear implant

2021 ◽  
Author(s):  
Piyush Sone ◽  
Ratan Jadhav ◽  
Medha Karbhari Adhyaru
Keyword(s):  
Cochlear Implant ◽  
Hearing Impairment ◽  
Cochlear Implants ◽  
Age Groups ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Wh Questions ◽  
Age Range ◽  
Better Than

<p><strong>Background:</strong> Syntax is an important aspect of language. It is very important to study syntax development in the children with hearing impairment (HI). The aim of study was to compare syntactic abilities of Marathi speaking children with hearing impairment using cochlear implant and typical developing children in the age range of 4 to 7 years.<strong></strong></p><p><strong>Methods: </strong>Ninety typically developing children, 26 language age matched children using cochlear implants were included in this study. They were grouped into three age groups: 4-5, 5-6 and 6-7 years. Syntax test in Marathi which has six subtests in comprehension: wh-questions, negations/yes/no questions, post-positions, plurals, tenses, person, number, gender markers and five subtests in expression: negation/yes/no questions, post-positions, plurals, tenses, person, number, gender markers was administered through a laptop to children in each group.</p><p><strong>Results: </strong>Results showed typically developing children performed significantly better than children with hearing impairment using cochlear implant I the age range of 4 to 5 years. Except postposition and PNG markers of comprehensive syntactic abilities all other syntactic abilities were significantly poor in children using cochlear implants. Only expressive syntactic abilities were significantly poor among children using cochlear implants in the age range of 6 to 7 years.</p><p><strong>Conclusions: </strong>Overall, the findings of this study showed that that Syntax test in Marathi can identify impairment in the syntactic ability in Marathi speaking children with hearing impairment. Children with hearing impairment using cochlear implants showed poor syntactic abilities.</p>

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