Abstract:
OBJECTIVE:To determine safe output sound pressure levels (SPL) for sound amplification devices to preserve hearing sensitivity after usage. DESIGN:A mathematical model consisting of the Modified Power Law (MPL) (Humes & Jesteadt, 1991 ) combined with equations for predicting temporary threshold shift (TTS) and subsequent permanent threshold shift (PTS) (Macrae, 1994b ) was used to determine safe output SPL. STUDY SAMPLE:The study involves no new human subject measurements of loudness tolerance or threshold shifts. PTS was determined by the MPL model for 234 audiograms and the SPL output recommended by four different validated prescription recommendations for hearing aids. RESULTS:PTS can, on rare occasion, occur as a result of SPL delivered by hearing aids at modern day prescription recommendations. The trading relationship of safe output SPL, decibel hearing level (dB HL) threshold, and PTS was captured with algebraic expressions. Better hearing thresholds lowered the safe output SPL and higher thresholds raised the safe output SPL. CONCLUSION:Safe output SPL can consider the magnitude of unaided hearing loss. For devices not set to prescriptive levels, limiting the output SPL below the safe levels identified should protect against threshold worsening as a result of long-term usage.
journal_name
Int J Audioljournal_title
International journal of audiologyauthors
Johnson EEdoi
10.1080/14992027.2017.1346306subject
Has Abstractpub_date
2017-11-01 00:00:00pages
829-836issue
11eissn
1499-2027issn
1708-8186journal_volume
56pub_type
杂志文章abstract:OBJECTIVE:A significant relationship between dietary nutrient intake and susceptibility to acquired hearing loss is emerging. Variability in the outcomes across studies is likely related to differences in the specific metrics used to quantify nutrient intake and hearing status. Most studies have used single nutrient an...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2013.780133
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVES:Recent retrospective studies report differences in auditory neurophysiology between concussed athletes and uninjured controls using the frequency-following response (FFR). Adopting a prospective design in college football players, we compared FFRs before and after a concussion and evaluated test-retest relia...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2020.1860261
更新日期:2021-01-13 00:00:00
abstract:OBJECTIVE:To determine the usage and knowledge of safe limits on personal listening devices (PLD) among college students. DESIGN:First, information on health history was collected. Second, microphone in real ear techniques determined eardrum to free-field correction factors. Third, hearing levels were evaluated and in...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2014.986691
更新日期:2015-06-01 00:00:00
abstract::The purpose of this study was to examine the current status of newborn/infant hearing screening programs in public sector hospitals in South Africa by means of a descriptive survey. Data was gathered using a self-administered postal questionnaire, which included questions on screening resources and protocols, follow-u...
journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
doi:10.1080/14992020802294032
更新日期:2008-01-01 00:00:00
abstract::Children with listening difficulties, but normal audiometry, may be diagnosed with APD. The diagnosis is typically based on poor performance on tests of perception of both non-speech and speech stimuli. However, non-speech test results correlate only weakly with evaluations of speech-in-noise processing, cognitive ski...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2012.723143
更新日期:2013-01-01 00:00:00
abstract::The objective of this study was to explore cochlear implant users' speech perception performance in quiet and in noise for low to moderate stimulation rates. Eight postlingually deaf adult users of the Nucleus CI24 cochlear implant (contour electrode array) using the ESPrit 3G speech processor participated in this stu...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020902858967
更新日期:2009-08-01 00:00:00
abstract::The purpose was to investigate the relationship between noise exposure and tinnitus among workers with normal hearing and hearing loss, respectively. We conducted a cross-sectional survey of 752 workers employed at 91 workplaces, that were investigated by means of full work-shift noise levels, questionnaire data, and ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020701581430
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVE:Despite the use of hearing protection devices (HPDs), noise induced hearing loss (NIHL) remains one of the most prevalent occupational conditions. A new technology allows for daily monitoring of noise exposures under HPDs. We report on an intervention employing the voluntary use of this technology in a worksi...
journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
doi:10.3109/14992027.2012.743047
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:We report a case study on possible alterations in resting-state functional connectivity between the auditory network and non-auditory brain regions in tinnitus patients. DESIGN:Independent component analyses were performed to evaluate coherent spontaneous activity in distributed brain networks. The resting-s...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2011.652677
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:We assessed the reliability of a hearing risk factor screening survey used by hearing conservation programmes for noise-exposed workers. DESIGN:We compared workers' answers from the screening survey to their answers to a confidential research questionnaire regarding hearing loss risk factors. We calculated k...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2016.1226520
更新日期:2016-12-01 00:00:00
abstract:OBJECTIVE:To determine the influence of choice of prescription and other child-, family- and intervention-related factors on speech, language, and functional performance of hearing-impaired children by three years of age. DESIGN AND STUDY SAMPLE:A randomized controlled design was implemented as part of a population-ba...
journal_title:International journal of audiology
pub_type: 杂志文章,随机对照试验
doi:10.3109/14992027.2012.705903
更新日期:2013-12-01 00:00:00
abstract::One limitation with the Bone Anchored Hearing Aid (Baha) is too poor amplification for patients with moderate to severe sensorineural hearing losses. Therefore, we investigated if bone conducted (BC) sound transmission improves when the stimulation approaches the cochlea. Also the influence from the squamosal suture o...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020802311216
更新日期:2008-12-01 00:00:00
abstract:OBJECTIVE:This study aimed to explore the perspectives of caregivers regarding the information and support they received following diagnosis of their child's hearing loss. DESIGN:A mixed methods explanatory sequential design was conducted. STUDY SAMPLE:A total of 445 caregivers of children completed a written survey,...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2017.1301683
更新日期:2018-05-01 00:00:00
abstract::Sensorineurally hearing-impaired (HI) subjects often report difficulties in complex acoustical environments. To investigate whether these problems arise from specific deficits in the frequency selectivity in binaural listening conditions, thresholds were measured for a 500-Hz sinusoid in phase (So) or antiphase (Spi) ...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992020903470775
更新日期:2010-05-01 00:00:00
abstract::Children (n = 141) referred to 5 clinical sites for auditory processing disorder assessment were tested with two dichotic listening tests, one with word pairs and the other with pairs of digits, as part of a comprehensive diagnostic battery. Scores from the Randomized Dichotic Digits Test and the Dichotic Words Test w...
journal_title:International journal of audiology
pub_type: 杂志文章,多中心研究
doi:10.3109/14992027.2015.1128003
更新日期:2016-01-01 00:00:00
abstract::The aim of the study is to understand the implications of disclosing the results of connexin26 (Cx26) gene testing to the concerned family with hearing impaired individuals. The department of biotechnology is funding a multicentric multidisciplinary team from Jawaharlal Nehru Center for Advanced Scientific Research (B...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020701297805
更新日期:2007-07-01 00:00:00
abstract:OBJECTIVE:To clarify the impact of hearing aids on mental health, social engagement, cognitive function, and physical health outcomes in older adults with hearing impairment. DESIGN:We assessed hearing handicap (hearing handicap inventory for the elderly; HHIE-S), cognition (mini mental state exam, trail making, audit...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2015.1059503
更新日期:2015-01-01 00:00:00
abstract::This document describes the protocol for the provision of amplification to infants and preschool children registered with the Ontario infant hearing program (OIHP) in Canada. The provision of amplification includes the prescription and dispensing of hearing instruments to infants and preschool children identified with...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992020903080751
更新日期:2010-01-01 00:00:00
abstract:OBJECTIVE:Sudden sensorineural hearing loss (SSHL) is characterized by a rapid loss of hearing, most often of cochlear origin. Very little attention has been paid in the literature to quality of life (QoL), psychosocial consequences and audiological rehabilitation after SSHL. DESIGN:We studied how level of hearing los...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2010.533705
更新日期:2011-02-01 00:00:00
abstract::Tinnitus is a condition that is difficult to treat, and treatment outcomes are difficult to measure The majority of people who experience tinnitus are not troubled by it; however, the troubled minority are referred by an otorhinolaryngologist for specialist clinic help. The aim of this study was to investigate how the...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020400050052
更新日期:2004-07-01 00:00:00
abstract::Salicylate, a common drug frequently used long term in the clinic, is well known for causing reversible hearing loss and tinnitus. Our previous study, however, demonstrated that chronic administration of salicylate progressively raised the amplitude of distortion product of otoacoustic emissions (DPOAEs), which are ma...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020802327998
更新日期:2009-01-01 00:00:00
abstract::The primary aim of this study was to examine the effects of frequency-modulated (FM) settings on speech-recognition performance in noise of listeners using two different cochlear implant speech processors. Participants included eight users of ESPrit 3G speech processors and nine users of Auria speech processors. A mod...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020802572635
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVE:For a noise-exposed group of workers, group-averaged and individual changes were compared for pure-tone audiometry, transient-evoked otoacoustic emissions (TEOAEs), and distortion product otoacoustic emissions (DPOAEs) in order to see if they exhibit the same pattern in time. DESIGN:Baseline and 17-months fo...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2011.653447
更新日期:2012-05-01 00:00:00
abstract::We evaluated the benefits of fast-acting WDRC, slow-acting AVC, and linear reference fittings for speech intelligibility and reported disability, in a within-subject within-device masked crossover design on 50 listeners with SNHL. Five hearing aid fittings were implemented having two compression channels and seven fre...
journal_title:International journal of audiology
pub_type: 杂志文章,随机对照试验
doi:10.1080/14992020500429518
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:This article provides a detailed description and evaluation of the next Nucleus(®) cochlear implant fitting suite. A new fitting methodology is presented that, at its simplest level, requires a single volume adjustment, and at its advanced level, provides access to 22-channel fitting. It is implemented on mul...
journal_title:International journal of audiology
pub_type: 杂志文章,随机对照试验
doi:10.3109/14992027.2013.781277
更新日期:2013-07-01 00:00:00
abstract::This paper presents normative data of hearing threshold levels of a population screened with various criteria, as compared to unscreened population data. Computer-controlled pure-tone audiometry was administered to the adult population in Nord-Trøndelag County, Norway, during 1995-1997. The 51975 participants also pro...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992020500057731
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVE:The main purpose of this research was to obtain normative data for auditory processing tests for Norwegian speaking children. DESIGN:Participants were administered routine audiological tests and an auditory processing test-battery consisting of Filtered Words, Competing Words, Dichotic Digits, Gaps In Noise,...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2017.1366670
更新日期:2018-01-01 00:00:00
abstract::Objective: This systematic review investigated if hearing aid use was associated with acute improvements in cognitive function in hearing-impaired adults. Design: The review question and inclusion/exclusion criteria were designed using the Population, Intervention, Control, Outcomes, and Study design (PICOS) mnemonic....
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.1080/14992027.2019.1594414
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:The aim was to investigate whether frequency compression (FC) hearing aids provide additional benefit to that conferred by conventional amplification. DESIGN:Participants wore the same hearing aid with FC enabled and disabled for six weeks (ABA design) in each condition. Speech recognition tests (in both qui...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2014.948217
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Mutations in the GJB2 gene are a major cause of hereditary hearing loss. However, only a few studies have investigated carrier frequencies of GJB2 mutations in the general population. The aim of this study was to estimate the carrier frequencies of three GJB2 mutations, including 235delC, V37I, and G45E, in t...
journal_title:International journal of audiology
pub_type: 杂志文章
doi:10.3109/14992027.2011.563247
更新日期:2011-10-01 00:00:00