Spatial Speech Perception Benefits in Young Children With Normal Hearing and Cochlear Implants

2010 ◽  
Vol 31 (5) ◽  
pp. 702-713 ◽  
Author(s):  
Lieselot Van Deun ◽  
Astrid van Wieringen ◽  
Jan Wouters
2000 ◽  
Vol 109 (12_suppl) ◽  
pp. 77-79 ◽  
Author(s):  
Nancy M. Young ◽  
Kristine M. Grohne ◽  
Vincent N. Carrasco ◽  
Carolyn J. Brown

2014 ◽  
Vol 15 (sup1) ◽  
pp. S43-S46 ◽  
Author(s):  
Teresa Y C Ching ◽  
Julia Day ◽  
Patricia Van Buynder ◽  
Sanna Hou ◽  
Vicky Zhang ◽  
...  

2012 ◽  
Vol 55 (3) ◽  
pp. 865-878 ◽  
Author(s):  
Rosemary Elizabeth Susan Lovett ◽  
Pádraig Thomas Kitterick ◽  
Shan Huang ◽  
Arthur Quentin Summerfield

Purpose To establish the age at which children can complete tests of spatial listening and to measure the normative relationship between age and performance. Method Fifty-six normal-hearing children, ages 1.5–7.9 years, attempted tests of the ability to discriminate a sound source on the left from one on the right, to localize a source, to track moving sources, and to perceive speech in noise. Results Tests of left–right discrimination, movement tracking, and speech perception were completed by ≥75% of children older than 3 years. Children showed adult levels of performance from age 1.5 years (movement tracking), 3 years (left–right discrimination), and 6 years (localization and speech in noise). Spatial release from masking—calculated as the difference in speech reception thresholds between conditions with spatially coincident and spatially separate speech and noise—remained constant at 5 dB from age 3 years. Data from a separate study demonstrate the age at which children with cochlear implants can complete the same tests. Assessments of left–right discrimination, movement tracking, and speech perception were completed by ≥75% of children who are older than 5 years and who wear cochlear implants. Conclusion These data can guide the selection of tests for future studies and inform the interpretation of results from clinical populations.


2000 ◽  
Vol 21 (6) ◽  
pp. 597-607 ◽  
Author(s):  
P.W. Dawson ◽  
C.M. McKay ◽  
P.A. Busby ◽  
D.B. Grayden ◽  
and G.M. Clark

2011 ◽  
Vol 22 (09) ◽  
pp. 623-632 ◽  
Author(s):  
René H. Gifford ◽  
Amy P. Olund ◽  
Melissa DeJong

Background: Current cochlear implant recipients are achieving increasingly higher levels of speech recognition; however, the presence of background noise continues to significantly degrade speech understanding for even the best performers. Newer generation Nucleus cochlear implant sound processors can be programmed with SmartSound strategies that have been shown to improve speech understanding in noise for adult cochlear implant recipients. The applicability of these strategies for use in children, however, is not fully understood nor widely accepted. Purpose: To assess speech perception for pediatric cochlear implant recipients in the presence of a realistic restaurant simulation generated by an eight-loudspeaker (R-SPACE™) array in order to determine whether Nucleus sound processor SmartSound strategies yield improved sentence recognition in noise for children who learn language through the implant. Research Design: Single subject, repeated measures design. Study Sample: Twenty-two experimental subjects with cochlear implants (mean age 11.1 yr) and 25 control subjects with normal hearing (mean age 9.6 yr) participated in this prospective study. Intervention: Speech reception thresholds (SRT) in semidiffuse restaurant noise originating from an eight-loudspeaker array were assessed with the experimental subjects’ everyday program incorporating Adaptive Dynamic Range Optimization (ADRO) as well as with the addition of Autosensitivity control (ASC). Data Collection and Analysis: Adaptive SRTs with the Hearing In Noise Test (HINT) sentences were obtained for all 22 experimental subjects, and performance—in percent correct—was assessed in a fixed +6 dB SNR (signal-to-noise ratio) for a six-subject subset. Statistical analysis using a repeated-measures analysis of variance (ANOVA) evaluated the effects of the SmartSound setting on the SRT in noise. Results: The primary findings mirrored those reported previously with adult cochlear implant recipients in that the addition of ASC to ADRO significantly improved speech recognition in noise for pediatric cochlear implant recipients. The mean degree of improvement in the SRT with the addition of ASC to ADRO was 3.5 dB for a mean SRT of 10.9 dB SNR. Thus, despite the fact that these children have acquired auditory/oral speech and language through the use of their cochlear implant(s) equipped with ADRO, the addition of ASC significantly improved their ability to recognize speech in high levels of diffuse background noise. The mean SRT for the control subjects with normal hearing was 0.0 dB SNR. Given that the mean SRT for the experimental group was 10.9 dB SNR, despite the improvements in performance observed with the addition of ASC, cochlear implants still do not completely overcome the speech perception deficit encountered in noisy environments accompanying the diagnosis of severe-to-profound hearing loss. Conclusion: SmartSound strategies currently available in latest generation Nucleus cochlear implant sound processors are able to significantly improve speech understanding in a realistic, semidiffuse noise for pediatric cochlear implant recipients. Despite the reluctance of pediatric audiologists to utilize SmartSound settings for regular use, the results of the current study support the addition of ASC to ADRO for everyday listening environments to improve speech perception in a child's typical everyday program.


2015 ◽  
Vol 24 (11) ◽  
pp. 1369-1380 ◽  
Author(s):  
Lizet Ketelaar ◽  
Carin H. Wiefferink ◽  
Johan H. M. Frijns ◽  
Evelien Broekhof ◽  
Carolien Rieffe

2021 ◽  
Vol 25 ◽  
pp. 233121652110512
Author(s):  
Claire McSweeny ◽  
Sharon L. Cushing ◽  
Jennifer L. Campos ◽  
Blake C. Papsin ◽  
Karen A. Gordon

Poor binaural hearing in children was hypothesized to contribute to related cognitive and academic deficits. Children with unilateral hearing have normal hearing in one ear but no access to binaural cues. Their cognitive and academic deficits could be unique from children receiving bilateral cochlear implants (CIs) at young ages who have poor access to spectral cues and impaired binaural sensitivity. Both groups are at risk for vestibular/balance deficits which could further contribute to memory and learning challenges. Eighty-eight children (43 male:45 female, aged 9.89  ±  3.40 years), grouped by unilateral hearing loss ( n = 20), bilateral CI ( n = 32), and typically developing ( n = 36), completed a battery of sensory, cognitive, and academic tests. Analyses revealed that children in both hearing loss groups had significantly poorer skills (accounting for age) on most tests than their normal hearing peers. Children with unilateral hearing loss had more asymmetric speech perception than children with bilateral CIs ( p < .0001) but balance and language deficits ( p = .0004, p < .0001, respectively) were similar in the two hearing loss groups ( p > .05). Visuospatial memory deficits occurred in both hearing loss groups ( p = .02) but more consistently across tests in children with unilateral hearing loss. Verbal memory was not significantly different than normal ( p > .05). Principal component analyses revealed deficits in a main cluster of visuospatial memory, oral language, mathematics, and reading measures (explaining 46.8% data variability). The remaining components revealed clusters of self-reported hearing, balance and vestibular function, and speech perception deficits. The findings indicate significant developmental impacts of poor binaural hearing in children.


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