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  • 1
    Online Resource
    Online Resource
    Socio-economic status and other potential risk factors for language development in the first year of life
    Cambridge University Press (CUP) ; 2023
    In:  Journal of Child Language
    Details
    In: Journal of Child Language, Cambridge University Press (CUP)
    Abstract: A wide variety of language skills has been shown to be compromised in children from low socioeconomic status (SES). However, few studies have investigated the effect of SES on language development in infants. The aim of this study is two-fold: to investigate when the first SES-effects on language can be observed and to explore the effects of three variables often claimed to be linked to SES – gestational duration, stress and parent-child interaction – on language development. Parents/caregivers of 539 Dutch-acquiring infants aged 8-13 months from mid to high SES backgrounds completed a questionnaire including the LENA Developmental Snapshot (Gilkerson et al., 2017a) and the Brigance Parent-Child Interaction Scale (Glascoe & Brigance, 2002). No association was found between SES and language development. However, the results suggest that corrected age and parent-child interaction positively influence language development at this early age.
    Type of Medium: Online Resource
    ISSN: 0305-0009 , 1469-7602
    URL: Article
    DOI: 10.1017/S0305000923000478
    RVK:
    EQ 1000
    RVK:
    EQ 2630
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 2023
    detail.hit.zdb_id: 1466489-6
    SSG: 5,2
    SSG: 7,11
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  • 2
    Online Resource
    Online Resource
    Using binaural beat sensitivity to explore mechanisms of bimodal temporal envelope beat sensitivity
    Acoustical Society of America (ASA) ; 2018
    In:  The Journal of the Acoustical Society of America Vol. 143, No. 3_Supplement ( 2018-03-01), p. 1939-1939
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 143, No. 3_Supplement ( 2018-03-01), p. 1939-1939
    Abstract: Current cochlear implant (CI) fitting strategies aim to maximize speech perception through the CI by allocating all spectral information across the electrode array without regard to tonotopic placement of each electrode along the basilar membrane. For patients with considerable residual hearing in the non-implanted ear, this approach may not be optimal for binaural hearing. This study aims to explore fitting procedures in which CI maps better complement information from the acoustic ear by reducing the frequency mismatch between them. We investigate the mechanisms of binaural temporal-envelope beat sensitivity in normal-hearing listeners using bandpass filtered pulse trains with parameters including stimulus level, filter bandwidth, filter slope, and spectral overlap using bandpass filtered pulse trains. We find the minimum baseline interaural timing difference and spectral mismatch that normal-hearing listeners can tolerate while maintaining their ability to detect interaural timing differences. Initial results consistently demonstrate maximum sensitivity to binaural beats when place of stimulation is matched across ears. The outcomes of this study will provide new information on binaural interactions in normal-hearing listeners and guide methodology for incoming single-sided-deafness patients as we adjust their CI maps in an effort to reduce the frequency-mismatch. [Work supported by NIH grant F32DC016815-01.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.5036342
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2018
    detail.hit.zdb_id: 1461063-2
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  • 3
    Online Resource
    Online Resource
    Contralateral unmasking for single-sided-deafness cochlear-implant users with shifted frequency assignments to reduce interaural place mismatch
    Acoustical Society of America (ASA) ; 2022
    In:  The Journal of the Acoustical Society of America Vol. 151, No. 4_Supplement ( 2022-04-01), p. A165-A165
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 151, No. 4_Supplement ( 2022-04-01), p. A165-A165
    Abstract: For cochlear-implant (CI) users with single-sided deafness (SSD), standard clinical programming yields interaural place-of-stimulation mismatch, because the electrode array does not reach the apex. This mismatch might degrade spatial-hearing abilities. This study examined whether acutely presented alternative frequency-to-electrode assignments (“remapping”), designed to reduce mismatch, could improve the use of two ears together to perceptually separate competing talkers. Remapped frequency assignments were derived from computed-tomography scans of intracochlear electrode locations or psychophysical tuning curves for interaural time-difference discrimination. Contralateral unmasking was measured by presenting target speech (closed-set corpus) to the acoustic ear and two same-sex competing talkers to just the acoustic ear or to both ears. Preliminary results (N = 8/15 planned subjects) show that for seven subjects with small (≤3-dB) initial binaural benefit, remapping yielded a small but significant (0.5-dB mean) increase in binaural benefit. Remapping was detrimental for the one subject with large (6-dB) initial binaural benefit. Possible longitudinal effects and tradeoffs with other SSD-CI hearing benefits that could be affected by remapping are discussed. [The views expressed in this abstract are those of the authors and do not reflect the official policy of the Department of Army/Navy/Air Force, Department of Defense, or U.S. Government.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0010987
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2022
    detail.hit.zdb_id: 1461063-2
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  • 4
    Online Resource
    Online Resource
    Sensitivity to binaural temporal-envelope beats with single-sided deafness and a cochlear implant as a measure of tonotopic match (L)
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 147, No. 5 ( 2020-05-01), p. 3626-3630
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 147, No. 5 ( 2020-05-01), p. 3626-3630
    Abstract: For cochlear-implant users with near-normal contralateral hearing, a mismatch between the frequency-to-place mapping in the two ears could produce a suboptimal performance. This study assesses tonotopic matches via binaural interactions. Dynamic interaural time-difference sensitivity was measured using bandpass-filtered pulse trains at different rates in the acoustic and implanted ear, creating binaural envelope beats. Sensitivity to beats should peak when the same tonotopic region is stimulated in both ears. All nine participants detected dynamic interaural timing differences and demonstrated some frequency selectivity. This method provides a guide to frequency-to-place mapping without compensation for inherent latency differences between the acoustic and implanted ears.
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/10.0001305
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
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  • 5
    Online Resource
    Online Resource
    Development of a tablet-based fit test system for military and austere environments
    Acoustical Society of America (ASA) ; 2020
    In:  The Journal of the Acoustical Society of America Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2805-2805
    Details
    In: The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 148, No. 4_Supplement ( 2020-10-01), p. 2805-2805
    Abstract: Hearing protection device (HPD) fit testing is considered “best practice” for hearing loss prevention programs. While DoD regulations recommend fit testing for Service Members (SMs) who experience a threshold shift, current field attenuation estimation systems (FAES) are not readily accessible to many hearing conservation personnel, in part due to issues with portability, cost and scalability. In this study, we compare the efficacy of several novel fit-testing paradigms against an objective field-microphone in real ear (F-MIRE) system. The paradigms include a real-ear attenuation at threshold (REAT) protocol using a compact headphone-based boothless audiometer, a broadband “HPD Check” screener using a headphone-based boothless audiometer, and a loudness balancing (LB) protocol using low-cost headphones. All three paradigms operate via a commercial android tablet. The low-cost tablet-based protocol in particular might make it feasible to conduct fit testing on all SMs, and not just those who experience significant hearing changes or who are being fitted with hearing protection for the first time. The enhanced portability of the FAES described here would also offer advantages outside of the clinic to ensure proper HPD fit prior to noise-hazardous weapons system exposures in the military training environment. [The views expressed here are those of the author and do not reflect the official policy of the Department of Army, Department of Defense, or U.S. Government.]
    Type of Medium: Online Resource
    ISSN: 0001-4966 , 1520-8524
    URL: Article
    DOI: 10.1121/1.5147810
    RVK:
    EQ 1000
    Language: English
    Publisher: Acoustical Society of America (ASA)
    Publication Date: 2020
    detail.hit.zdb_id: 1461063-2
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