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 may not accurately reflect in situ hearing aid performance. This study compared the real-ear aided response (REAR) and real-ear insertion response (REIR) for a body-worn hearing aid using the substitution method and an off-line equalization modified pressure method with three different loudspeaker locations (0 degrees and 45 degrees at head level and 0 degrees at body hearing aid level) and two reference microphone positions (over-the-ear [OTE] and next to the body hearing aid microphone). Results indicated that each of the responses was affected by changes in loudspeaker and reference microphone location. If the substitution method measured from 0-degrees azimuth at head level is considered to be the most realistic representation of hearing aid performance, the closest agreement with body-worn hearing aids was obtained with the modified pressure method when the loudspeaker was located at 0-degrees azimuth at head level and the reference microphone was located over the ear. If the clinician uses the modified pressure method and desires to approximate results with the substitution method, correction values are needed for REAR measurements but not for REIR measurements.
journal_name
J Am Acad Audioljournal_title
Journal of the American Academy of Audiologyauthors
Nelson JA,Hawkins DBsubject
Has Abstractpub_date
1994-03-01 00:00:00pages
138-40issue
2eissn
1050-0545issn
2157-3107journal_volume
5pub_type
杂志文章abstract::Often ABR threshold testing employs clicks to assess high-frequency hearing, and low-frequency tone bursts to assess low-frequency sensitivity. While a maturation effect has been shown for click stimuli, similar data are lacking for low-frequency toneburst stimuli. Thus, 305 infants ranging in conceptional age (CA) fr...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16.2.6
更新日期:2005-02-01 00:00:00
abstract:BACKGROUND:Cochlear implants (CIs) successfully restore hearing in postlingually deaf adults, but in doing so impose a frequency-position function in the cochlea that may differ from the physiological one. PURPOSE:The CI-imposed frequency-position function is determined by the frequency allocation table programmed int...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15063
更新日期:2017-03-01 00:00:00
abstract::This study examined the influence of technology, demographic factors, and prefitting expectations, attitudes, and adjustment to hearing loss on hearing aid outcome. Clients obtaining new hearing aids completed questionnaires measuring personal adjustment to hearing loss, expectations of and attitudes toward hearing ai...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2001-02-01 00:00:00
abstract::Closed-set tests of spoken word recognition are frequently used in clinical settings to assess the speech discrimination skills of hearing-impaired listeners, particularly children. Speech scientists have reported robust effects of lexical competition and talker variability in open-set tasks but not closed-set tasks, ...
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.17.5.4
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:The scalp-recorded frequency-following response (FFR) has been widely accepted in assessing the brain's processing of speech stimuli for people who speak tonal and nontonal languages. Characteristics of scalp-recorded FFRs with increasing number of sweeps have been delineated through the use of an exponentia...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16135
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Passive electrophysiological protocols, such as the middle latency response and speech auditory brainstem response, are often advocated in the objective assessment of central auditory processing disorder (CAPD). However, few established electrophysiological protocols exist for CAPD assessment that have patie...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.17047
更新日期:2019-06-01 00:00:00
abstract:BACKGROUND/PURPOSE:The acceptable noise level (ANL) test is the only test that is known to predict success with hearing aids with a high degree of accuracy. A person's ANL is the maximal amount of background noise that he or she is "willing to put up with" while listening to running speech. It is defined as the speech ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.6.10
更新日期:2014-06-01 00:00:00
abstract::The central auditory test results for three normal-hearing children who were initially diagnosed as having a central auditory processing disorder and learning disability are presented. They were referred to the authors for second-opinion consultations. Central auditory processing retesting was performed by the authors...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2000-02-01 00:00:00
abstract::A cognitive test battery sensitive to processes important for speech understanding was developed and investigated. Test stimuli are presented as text or in an auditory or audiovisual modality. The tests investigate phonologic processing and verbal information processing. Four subject groups, young/elderly with normal-...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:The relation between the auditory steady-state response (ASSR) and behavioral audiometric thresholds requires further clarification in the case of adults with auditory neuropathy/auditory dys-synchrony (AN/AD). PURPOSE:The aim of this study was to compare pure-tone audiometric threshold (PTAT) and ASSR in a...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.20.10.4
更新日期:2009-11-01 00:00:00
abstract::The purpose of this study was to develop a test to assess the ability of persons with cochlear implants (CIs) to interpret musical signals. Up to this time, the main direction in outcomes studies of cochlear implantation has been in relation to speech recognition abilities. With improvement in CI hardware and processi...
journal_title:Journal of the American Academy of Audiology
pub_type: 临床试验,杂志文章
doi:10.3766/jaaa.19.1.6
更新日期:2008-01-01 00:00:00
abstract::Although multimemory hearing aids have theoretical advantages over conventional "single memory" hearing aids, research and clinical data are not available to support their efficacy. The present study reports on the usefulness of a commercially available multimemory hearing aid in daily listening situations. Nineteen e...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
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:BACKGROUND:Cervical and ocular vestibular-evoked myogenic potentials (VEMPs) have become common clinical vestibular assessments. However, VEMP testing requires high intensity stimuli, raising concerns regarding safety with children, where sound pressure levels may be higher due to their smaller ear canal volumes. PURP...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15097
更新日期:2017-05-01 00:00:00
abstract::The histories of two pediatric patients who received cochlear implants with subsequent partial recovery of hearing in the nonimplanted ear are reviewed. One child had a sudden bilateral hearing loss, presumably secondary to autoimmune ear disease. The other child had a bilateral progressive hearing loss diagnosed as l...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16.10.2
更新日期:2005-11-01 00:00:00
abstract::Auditory training has long been advocated to enhance communication but has never been time or cost-effective. This article describes the concepts underlying the development of a home-based, interactive adaptive computer program designed to engage the adult hearing-impaired listener in the hearing-aid-fitting process, ...
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.17.8.2
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:A model that can accurately predict speech intelligibility for a given hearing-impaired (HI) listener would be an important tool for hearing-aid fitting or hearing-aid algorithm development. Existing speech-intelligibility models do not incorporate variability in suprathreshold deficits that are not well pre...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.24.4.5
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:A deficit in the processing of auditory information may underlie problems in understanding speech in the presence of background noise, degraded speech, and in following spoken instructions. Children with auditory processing disorders are challenged in the classroom because of ambient noise levels and maybe a...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.26.4.4
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:We recently described a research study in which age-related changes in interaural asymmetry were elicited using the N400 of the auditory event-related potentials (AERP) (Davis et al, 2013). The N400 was the primary focus due to its sensitivity to various aspects of semantic processing (Kutas and Hillyard, 19...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.2.8
更新日期:2014-02-01 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 Words-in-Noise (WIN) test uses monosyllabic words in seven signal-to-noise ratios of multitalker babble (MTB) to evaluate the ability of individuals to understand speech in background noise. The purpose of this study was to evaluate the criterion validity of the WIN by comparing recognition performances under MTB ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.18.6.7
更新日期:2007-06-01 00:00:00
abstract::The use of tone-burst stimuli for electrocochleography (ECochG) may offer certain advantages over conventional broad-band clicks. Namely, the summating potential (SP) component can be examined at different frequencies and may be easier to define and measure. To apply these findings clinically, it would first be necess...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:There is broad consensus that screening and diagnosis of permanent hearing loss in children must be embedded within a comprehensive, evidence-based, family-centered intervention program. Clinical practice guidelines (CPGs) for pediatric hearing assessment and hearing aid verification aim to reduce variabilit...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15064
更新日期:2016-03-01 00:00:00
abstract::The tolerability of aided impulsive-type stimuli was investigated in a group of 13 hearing-impaired listeners. Two linear circuits (one with a class A and one with a class D output stage) and one adaptive frequency response (AFR) circuit (with a class D output stage) were investigated. In a three-way paired-comparison...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::This multisite investigation assessed subjective, behavioral, and objective balance function in 30 blast survivors. Subjects with vertigo, dizziness, or imbalance were screened (n = 6) or evaluated (n = 27) during 1 year. Tests included a questionnaire, electronystagmography (ENG), and computerized dynamic posturograp...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1999-10-01 00:00:00
abstract:PURPOSE:The purpose was to assess the proportion of patients seeking help for tinnitus and/or hyperacusis who have severe hyperacusis and to examine factors associated with severe hyperacusis. RESEARCH DESIGN:This was a retrospective cross-sectional study based on 362 consecutive patients who attended a National Healt...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.17015
更新日期:2018-07-01 00:00:00
abstract::Tympanometric measures were obtained in 1240 adults (2147 ears) ranging in age from 48 to 90 years. All subjects reported a negative history of otic disease, passed an otoscopic examination, and did not present a significant air-bone gap based on pure-tone audiometry. Relative to findings for younger adults, tympanome...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1996-08-01 00:00:00
abstract::The acoustic otoscope, originally called the acoustic reflectometer, was developed and produced by John and David Teele in the early 1980s. Since initial production, two different instrument versions have been developed by two separate companies. During the period of time in which the acoustic otoscope has been in pro...
journal_title:Journal of the American Academy of Audiology
pub_type: 历史文章,杂志文章
doi:
更新日期:1998-02-01 00:00:00
abstract:BACKGROUND:Hearing aids today often provide both directional (DIR) and omnidirectional (OMNI) processing options with the currently active mode selected automatically by the device. The most common approach to automatic switching involves "acoustic scene analysis" where estimates of various acoustic properties of the l...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.19.9.6
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:Difficulty understanding speech in background noise is a common complaint of individuals with sensorineural hearing loss. Recent animal studies suggest this difficulty may be due, in part, to spiral ganglion cell degeneration related to aging or noise exposure. Although auditory brainstem response (ABR) thre...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.14100
更新日期:2015-05-01 00:00:00