Abstract:
:Real-ear sound pressure levels (SPLs) were compared among three methods used for positioning a probe microphone in the ear canal. The probe insertion techniques included (1) an acoustic method that incorporates use of the quarter-wave anti-resonance property of the ear to determine acoustically the location of the probe tube relative to the eardrum; (2) a constant insertion depth method (25 mm from the intratragal notch); and (3) the earmold +5-mm method, which places the probe 5 mm beyond the tip of the earmold, thereby avoiding problems associated with the transition region where sound exits from the bore of the earmold into the larger ear canal. Measurements were obtained at 32 test frequencies in 24 adults with normal middle ear impedance. Results indicated that the SPLs measured by the acoustic method were modestly higher than those measured by the other two methods. This result was most evident in subjects with long ear canals (> 25 mm) and at high test frequencies (3.0 to 6.3 kHz).
journal_name
J Am Acad Audioljournal_title
Journal of the American Academy of Audiologyauthors
Dirks DD,Ahlstrom JB,Eisenberg LSsubject
Has Abstractpub_date
1996-01-01 00:00:00pages
31-8issue
1eissn
1050-0545issn
2157-3107journal_volume
7pub_type
杂志文章abstract::A speech test evaluation and presentation system is described. The test presentation subsystem has the flexibility and speed of live-voice testing while using recorded test materials. The speech test evaluation subsystem compares an individual subject's test performance on a monosyllabic word test with that of an aver...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1999-07-01 00:00:00
abstract::In the last few years, a clinical consensus has emerged regarding the necessary components of an early management program for hearing-impaired children. Early detection of hearing loss, a parent-infant and supervised nursery program, and optimal amplification provisions are among these components. This paper explores ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::The effects of stimulus rate and gender on the auditory middle latency response (AMLR) waveforms were examined in 20 young adult male and female subjects. Four different repetition rates were presented to subjects (1.1/sec, 4.1/sec, 7.7/ sec, and 11.3/sec). Stimulus repetition rate had a significant effect on Pa laten...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:Wideband acoustic immittance (WAI) measures provide information about middle-ear function across the traditional audiometric frequency range from 0.25 to 8.0 kHz. Recent studies have found that WAI is effective in predicting the presence of conductive hearing loss (CHL). It is not known whether WAI can accur...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.5.5
更新日期:2014-05-01 00:00:00
abstract::In recent years, we have observed causes of congenital or early onset hearing disorders that had not been recognized or known to exist before. These include drugs passed to an as-yet unborn child. Principal among them is alcohol, but others, such as cocaine, are now also occupying our attention. This article reviews t...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
doi:
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:In Sweden, there is a lack of evidence-based rehabilitation programs for hearing loss. The Active Communication Education program (ACE) has successfully been used in Australia and was translated and evaluated in a Swedish pilot study. The pilot study included 23 participants (age 87 yr). No statistically sig...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.9.7
更新日期:2014-10-01 00:00:00
abstract::Crystal Device Integrity Testing System (CITS), the first commercially available testing system of its type, allows rapid assessment of cochlear implant function by measuring averaged electrode voltages-the scalp-recorded fields generated by electrode currents. We describe our experience performing routine integrity t...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.17.10.4
更新日期:2006-11-01 00:00:00
abstract:BACKGROUND:Children with auditory processing disorders (APD) are described to have a signal-to-noise ratio (SNR) difficulty. Frequency-modulated (FM) systems have been reported to improve this situation. Yet the use of personal amplification that may be more portable has not been attempted. PURPOSE:To determine whethe...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.19.6.3
更新日期:2008-06-01 00:00:00
abstract::In this article we review, and discuss the clinical implications of, five projects currently underway in the Cochlear Implant Laboratory at Arizona State University. The projects are (1) norming the AzBio sentence test, (2) comparing the performance of bilateral and bimodal cochlear implant (CI) patients in realistic ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.23.6.2
更新日期:2012-06-01 00:00:00
abstract::Although it has been reported that smoking has deleterious effects on the middle ears of smokers, including their eustachian tubes, investigators have failed to find differences in the tympanometric characteristics of smokers and nonsmokers. In the present study, however, we found that the Valsalva-induced tympanometr...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-08-01 00:00:00
abstract:BACKGROUND:Although audiologists have been using support personnel for over 45 yr, controversy and variability continue with respect to the entry-level education, training methods, and scope of practice. PURPOSE:As part of a larger clinical practices survey, this report focuses on use of audiology assistants (AAs) for...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,多中心研究
doi:10.3766/jaaa.17004
更新日期:2018-05-01 00:00:00
abstract:PURPOSE:There will likely be several different tinnitus treatments necessary, and it is important to understand patient preferences and factors that might contribute to treatment acceptability. This study explores the acceptability of a wide range of different tinnitus treatments, from noninvasive wearable devices to s...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.23.2.6
更新日期:2012-02-01 00:00:00
abstract::Twelve children, ranging in age from 8.9 to 12.4 years, with histories of severe otitis media with effusion (OME) before age 3, were compared to age-matched cohorts in their ability to discriminate the frequency of tone pulses of 20-, 50-, and 200-msec duration. An adaptive procedure was used in combination with a two...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Binaural hearing improves our ability to understand speech and to localize sounds. Hearing loss can interfere with binaural cues, and despite the success of amplification, ∼25% of people with bilateral hearing loss fit with two hearing aids choose to wear only one (e.g., Brooks and Bulmer, 1981). One explana...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.22.3.6
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Bilingual (BL) listeners' difficulties in adverse noise conditions are exacerbated when perceiving their second language (L2) relative to their first language (L1). Perception of L2 is also significantly poorer by BL listeners compared to native monolingual (ML) listeners. PURPOSE:The purpose of the study w...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.21.4.3
更新日期:2010-04-01 00:00:00
abstract::Loudness discomfort levels (LDLs) were measured in dB HL and SPL at discrete frequencies between 500 to 4000 Hz on 31 hearing-impaired ears using TDH-50P and ER-3A earphones. The results revealed no significant differences in the measured sound pressure level (SPL) between the two earphones at all test frequencies. Ho...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND:The American National Standards Institute (ANSI) provides standards used to govern standardization of all hearing aids. If hearing aids do not meet specifications, there are potential negative implications for hearing aid users, professionals, and the industry. Recent literature has not investigated the prop...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15027
更新日期:2016-09-01 00:00:00
abstract::Skin disorders of the external ear are common. Although audiologists will not necessarily treat these conditions, it is important for them to be aware of these disorders and refer patients to a specialist in some instances. This report summarizes eight of the most commonly encountered skin conditions with an emphasis ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
doi:10.3766/jaaa.19.3.6
更新日期:2008-03-01 00:00:00
abstract::Audiologists must be knowledgeable about the efficacy of aural habilitation practices because we are often the first professionals to inform parents about their child's hearing impairment. The purpose of this investigation was to document the status of graduates of one aural habilitation option; auditory-verbal. A con...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract:BACKGROUND:Both wide dynamic range compression (WDRC) and ChannelFree (CF) processing strategies in hearing aids were designed to improve listener comfort and consonant identification, yet few studies have actually compared them. PURPOSE:To determine whether CF processing provides equal or better consonant identificat...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,随机对照试验
doi:10.3766/jaaa.14057
更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:Evidence suggests that hearing-aid users have difficulties with own-voice level control, most likely because their auditory feedback is affected by hearing-aid amplification. PURPOSE:The purpose of this study was to investigate how changes to auditory feedback affect the voice level of hearing-aid users. R...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.20.8.5
更新日期:2009-09-01 00:00:00
abstract::Electrocochleography (ECochG) has evolved as an important tool in the diagnosis/assessment/monitoring of Ménière's disease/endolymphatic hydrops (MD/ELH). This manuscript provides an update on the use of ECochG for these purposes. The material presented includes descriptions of the components of the electrocochleogram...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
doi:10.3766/jaaa.17.1.6
更新日期:2006-01-01 00:00:00
abstract::Recent advances in endoscopic optics and miniature video camera technology have made video otoscopy (VO) accessible to audiologists in a practical way. Seven categories of VO applications are presented with clinical examples: (1) general examination of the earcanal and tympanic membrane, (2) physician communication/te...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1997-12-01 00:00:00
abstract:BACKGROUND:It has been reported that up to 40% of patients over age 60 fail to generate a vestibular evoked myogenic potential (VEMP; Su et al, 2004). When this occurs it is difficult to determine whether the absent VEMP represents evidence of bilateral impairment of the vestibulocollic reflex pathway or a normal age-r...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.19.7.3
更新日期:2008-07-01 00:00:00
abstract::Balance Function test data alone cannot capture the reaction that a patient has to balance system disease. The present investigation examined the relations among components of the balance function examination (electronystagmography, rotational testing, and platform posturography) and self-perceived dizziness handicap,...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::Probe-microphone measurements are typically made with behind-the-ear (BTE) and in-the-ear (ITE) hearing aids with the loudspeaker located at 0-degrees or 45-degrees azimuth at head level and the reference microphone positioned on the head near the hearing aid microphone. With body-worn instruments, these conditions ma...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract::The effect of feedback reduction (FBR) systems on sound quality recorded from two commercially available hearing aids was evaluated using paired comparison judgments by 16 participants with mild to severe sloping hearing loss. These comparisons were made with the FBR systems on and off without audible feedback and whi...
journal_title:Journal of the American Academy of Audiology
pub_type: 临床试验,杂志文章
doi:10.3766/jaaa.18.5.5
更新日期:2007-05-01 00:00:00
abstract::The amplitude modulation-following response (AMFR), an auditory evoked potential elicited by continuous amplitude-modulated tones, can be recorded for carrier frequencies across the audiometric range. AMFR thresholds (based on the amplitude spectra of the responses) have been found to closely follow behavioral thresho...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract::The present investigation was conducted to help determine whether source activity of the direct recorded N1 response differed from that of the gamma band response (GBR). Auditory evoked cortical potential data from two patients with intractable epilepsy undergoing prolonged video EEG monitoring after implantation of s...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract:BACKGROUND:Studies have examined listening effort in individuals with hearing loss to determine the extent of the impairment. Regarding cochlear implants (CIs), results suggest that listening effort is improved using bilateral CIs compared to unilateral CIs. Few studies have investigated listening effort and outcomes r...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16014
更新日期:2017-09-01 00:00:00