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 subdural electrodes is reported in this investigation. Evoked responses were recorded to 1000-Hz tone bursts. The data were then filtered digitally to resolve the GBR. The voltage fields were subsequently viewed topographically. Although both responses originated in the supratemporal cortex, the N1 and GBR voltage field patterns differed. These results are consistent with the view that the sources of N1 and the GBR are different, suggesting that these components emanate from functionally distinct neuronal pools.
journal_name
J Am Acad Audioljournal_title
Journal of the American Academy of Audiologyauthors
Jacobson GP,Henderson J,Smith BJ,Elisevich KVsubject
Has Abstractpub_date
1998-04-01 00:00:00pages
87-94issue
2eissn
1050-0545issn
2157-3107journal_volume
9pub_type
杂志文章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::The masking-level difference (MLD) was investigated in children aged 3.9 to 9.5 years and in an adult control group in order to examine the development of the MLD with age. A three-alternative forced-choice adaptive tracking procedure was used for all listeners. MLDs were determined for a 500-Hz pure-tone signal prese...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1990-04-01 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::This study assessed speech perception benefits for three congenitally deaf adolescents who used an electrotactile speech processor (Tickle Talker(TM)) and subsequently went on to use a Nucleus Minisystem 22 cochlear implant. Both devices provided significant and comparable benefits for all children in the device plus ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1996-04-01 00:00:00
abstract:BACKGROUND:Patients with cochlear malformations were long considered poor candidates for cochlear implantation (CI), and surgical approaches different than the standard facial recess approach were used to access the inner ear. There is no previous long-term follow-up of a patient with significantly malformed inner ear ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15107
更新日期:2016-11-01 00:00:00
abstract::Auditory brainstem responses were measured in response to 1000-Hz tone bursts from 115 patients with sensorineural hearing loss, presumably of cochlear origin. Mean wave V latencies and variability were comparable to those observed in normal hearing subjects for similar stimuli. The range of interaural differences in ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1992-05-01 00:00:00
abstract::Draft American National Standard "Evaluating the Effectiveness of Hearing Conservation Programs" identifies potentially important links between audiometric threshold variability outcomes and occupational hearing conservation program (HCP) practices. Unacceptable threshold variability in annual audiograms may identify ...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1995-11-01 00:00:00
abstract::Survivors of extracorporeal membraneous oxygenation (ECMO) treatment are at risk for serious neurodevelopmental disorders or neurologic sequelae, but little has been reported about the prevalence of sensorineural hearing loss in these patients. Of 123 ECMO survivors born between 1987 and 1996, at least 30 survivors ha...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1998-10-01 00:00:00
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 pro...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::This review of the literature on Alport syndrome (AS) places emphasis on genetic and clinical issues related to the sensorineural hearing loss in type III and type IV X-linked AS. The review covers prevalence, medical issues, genetic issues, audiologic findings, vestibular findings, the pathophysiology of hearing loss...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章,评审
doi:
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Prior to undergoing vestibular function testing, it is not uncommon for clinicians to request that patients abstain from caffeine 24 hr prior to the administration of the tests. However, there is little evidence that caffeine affects vestibular function. PURPOSE:To evaluate whether the results from two test...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.3.5
更新日期:2014-03-01 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:PURPOSE:To present a case study in order to alert clinicians to the possibility of occurrence of intermodulation distortion during otoacoustic emissions testing that arises from the cavity formed by the external auditory meatus and tympanic membrane rather than from the inner ear, compromising the reliability and valid...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.20.5.3
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Despite the recognition that the directional microphone hearing aid (DMHA) is an important intervention aimed at helping older hearing-impaired adults understand speech in noisy environments, there is little evidence that older listeners can actually benefit from directional processing. PURPOSE:The objectiv...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.21.2.3
更新日期:2010-02-01 00:00:00
abstract::A Macintosh computer-based audiometer (Virtual 320) was evaluated for reliability and validity of high-frequency (8-20 kHz) thresholds by comparison with a well documented laboratory high-frequency evaluation system (PARVA-HF). High-frequency earphones originally provided with the V320 for high-frequency testing requi...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1990-07-01 00:00:00
abstract:BACKGROUND:Many studies have reported the speech recognition benefits of a personal remote microphone system when used by adult listeners with hearing loss. The advance of wireless technology has allowed for many wireless audio transmission protocols. Some of these protocols interface with commercially available hearin...
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.15008
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Children clinically diagnosed with auditory processing disorders (APDs) are often described as easily distracted and inattentive, leading some researchers to propose that APDs might be a consequence of underlying attention difficulties or a subtype of attention disorders. PURPOSE:The aim of this study was t...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.25.7.6
更新日期:2014-07-01 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::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::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:BACKGROUND:Motivational interviewing (MI) has been used in consultation settings to motivate hearing aid users to increase hearing aid usage. However, the effect of MI on those who use their hearing aids only rarely or not at all has not been explored. PURPOSE:The aims of this pilot study were to evaluate the effect o...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.16184
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Despite improvements in cochlear implants (CIs), CI recipients continue to experience significant communicative difficulty in background noise. Many potential solutions have been proposed to help increase signal-to-noise ratio in noisy environments, including signal processing and external accessories. To da...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.26.1.6
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Acute symptoms of dizziness and/or imbalance commonly experienced in athletes postconcussion are speculated to arise from dysfunction at multiple levels (i.e., inner ear or central vestibular system) to appropriately integrate afferent sensory information. Disruption along any pathway of the balance system c...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15110
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Tinnitus can have a devastating impact on the quality of life of the sufferer. Although the mechanisms underpinning tinnitus remain uncertain, hearing loss is often associated with its onset, and hearing aids are among the most commonly used tools for its management. PURPOSE:To conduct a scoping review to e...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.24.8.11
更新日期:2013-09-01 00:00:00
abstract::This paper describes several techniques used to explore the role of cognitive factors in auditory performance in elderly adults. Two factors, cognitive slowing and age-related memory constraints, receive special attention. Assessing listeners' ability to report the content of time-compressed speech shows elderly adult...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1996-06-01 00:00:00
abstract:BACKGROUND:For children with developmental delays (DDs) of any kind (e.g., global DDs, autism spectrum disorder, and Down syndrome), it is essential to understand if a hearing loss may be contributing to these delays. However, toddlers with DDs may have difficulty understanding directions, may be uncomfortable with a n...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.18070
更新日期:2020-05-01 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::The value of audiometric database analysis (ADBA) procedures for evaluating the effectiveness of hearing conservation programs (HCPs) was studied in a population of 82,195 workers. We rated the HCP using four ADBA procedures. Results showed that the HCP ratings ran the gamut from "unacceptable" to "acceptable" from ye...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:
更新日期:1995-07-01 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:BACKGROUND:Evaluation of hearing-device signal-processing features is performed for research and development purposes, but also in clinical settings. Most people agree that the benefit experienced in a hearing-device user's daily life is most important, but laboratory tests are popular since they can be performed unifo...
journal_title:Journal of the American Academy of Audiology
pub_type: 杂志文章
doi:10.3766/jaaa.15105
更新日期:2016-07-01 00:00:00