keyword
MENU ▼
Read by QxMD icon Read
search

Binaural hearing

keyword
https://www.readbyqxmd.com/read/29325392/horizontal-localization-in-simulated-unilateral-hearing-loss
#1
Anvarsamarein Parisa, Nazeri Ahmad Reza, Sameni Seyyed Jalal, Kamali Mohammad, Zarrin Koob Homa
BACKGROUND AND OBJECTIVES: The ability to localize a sound source is one of the binaural hearing benefits in a horizontal plane based on interaural time difference and interaural intensity difference. Unilateral or bilateral asymmetric hearing loss will affect binaural hearing and lead to sound locating errors. In this cross sectional analytical descriptive study, the localization error was investigated when participants turned their heads to the sound source with closed eyes and after simulating unilateral hearing loss by placing earplugs inside the right ear canal...
December 2017: Journal of Audiology & Otology
https://www.readbyqxmd.com/read/29316819/hearing-aid-noise-suppression-and-working-memory-function
#2
Tobias Neher, Kirsten C Wagener, Rosa-Linde Fischer
OBJECTIVE: Research findings concerning the relation between benefit from hearing aid (HA) noise suppression and working memory function are inconsistent. The current study thus investigated the effects of three noise suppression algorithms on auditory working memory and the relation with reading span. DESIGN: Using a computer simulation of bilaterally fitted HAs, four settings were tested: (1) unprocessed, (2) directional microphones, (3) single-channel noise reduction, and (4) binaural coherence-based noise reduction...
January 9, 2018: International Journal of Audiology
https://www.readbyqxmd.com/read/29310976/combination-of-binaural-and-harmonic-masking-release-effects-in-the-detection-of-a-single-component-in-complex-tones
#3
Martin Klein-Hennig, Mathias Dietz, Volker Hohmann
Both harmonic and binaural signal properties are relevant for auditory processing. To investigate how these cues combine in the auditory system, detection thresholds for an 800-Hz tone masked by a diotic (i.e., identical between the ears) harmonic complex tone were measured in six normal-hearing subjects. The target tone was presented either diotically or with an interaural phase difference (IPD) of 180° and in either harmonic or "mistuned" relationship to the diotic masker. Three different maskers were used, a resolved and an unresolved complex tone (fundamental frequency: 160 and 40 Hz) with four components below and above the target frequency and a broadband unresolved complex tone with 12 additional components...
December 14, 2017: Hearing Research
https://www.readbyqxmd.com/read/29305038/intentional-switching-in-auditory-selective-attention-exploring-attention-shifts-with-different-reverberation-times
#4
Josefa Oberem, Julia Seibold, Iring Koch, Janina Fels
Using a well-established binaural-listening paradigm the ability to intentionally switch auditory selective attention was examined under anechoic, low reverberation (0.8 s) and high reverberation (1.75 s) conditions. Twenty-three young, normal-hearing subjects were tested in a within-subject design to analyze influences of the reverberation times. Spoken word pairs by two speakers were presented simultaneously to subjects from two of eight azimuth positions. The stimuli consisted of a single number word, (i...
December 22, 2017: Hearing Research
https://www.readbyqxmd.com/read/29287849/a-novel-variant-in-the-cdh23-gene-is-associated-with-non-syndromic-hearing-loss-in-a-chinese-family
#5
Yuan Liang, Kangwei Wang, Qi Peng, Pengyuan Zhu, Chunqiu Wu, Chunbao Rao, Jiang Chang, Siping Li, Xiaomei Lu
OBJECTIVES: To explore the pathogenic causes of a proband who was diagnosed with non-syndromic hearing loss. METHODS: We performed targeted capture of 159 known deafness-related genes and next-generation sequencing in the proband who was tested negative for the twenty hotspot variants in four common deafness-related genes(GJB2, GJB3, SLC26A4 and MTRNR1); Clinical reassessments, including detailed audiological and ocular examinations were performed in the proband and his normal parents...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29287039/effect-of-blast-injury-on-auditory-localization-in-military-service-members
#6
Lina R Kubli, Douglas Brungart, Jerry Northern
OBJECTIVES: Among the many advantages of binaural hearing are the abilities to localize sounds in space and to attend to one sound in the presence of many sounds. Binaural hearing provides benefits for all listeners, but it may be especially critical for military personnel who must maintain situational awareness in complex tactical environments with multiple speech and noise sources. There is concern that Military Service Members who have been exposed to one or more high-intensity blasts during their tour of duty may have difficulty with binaural and spatial ability due to degradation in auditory and cognitive processes...
December 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29287037/correlations-between-the-degree-of-endolymphatic-hydrops-and-symptoms-and-audiological-test-results-in-patients-with-meni%C3%A3-re-s-disease-a-reevaluation
#7
Shiyin Yang, Huaming Zhu, Bijun Zhu, Hui Wang, Zhengnong Chen, Yaqin Wu, Bin Chen, Haibo Shi, Yuehua Li, Jing Zou, Shankai Yin
OBJECTIVE: This study was performed to reevaluate the diagnostic significance of clinically well-accepted audiological tests in indicating endolymphatic hydrops (EH) in Menière's disease (MD). STUDY DESIGN: Retrospective case review. SETTINGS: Hospital. PATIENTS: Fifty patients (52 affected ears) diagnosed with MD were enrolled. INTERVENTION: Diagnostic. MAIN OUTCOME MEASURE: To analyze the correlations between endolymphatic hydrops and results of audiological test including the pure-tone audiometry threshold, suprathreshold function tests, electrocochleogram, and glycerol test...
December 28, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29251690/cost-effective-hearing-conservation-regulatory-and-research-priorities
#8
Robert A Dobie
Hearing conservation programs (HCPs) mandated by the US Occupational Safety and Health Administration (OSHA) cost about $350/worker/year. Are they cost-effective? A cross-sectional model of the US adult population with and without HCPs incorporates (1) the American Medical Association's method for estimating binaural hearing impairment and whole-person impairment; (2) the model of the International Organization for Standardization (ISO) for estimating both age-related and noise-induced hearing loss; and (3) an acceptable cost of $50,000 per quality-adjusted life year...
December 14, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29210810/restoring-perceived-loudness-for-listeners-with-hearing-loss
#9
Dirk Oetting, Volker Hohmann, Jens-E Appell, Birger Kollmeier, Stephan D Ewert
OBJECTIVES: Normalizing perceived loudness is an important rationale for gain adjustments in hearing aids. It has been demonstrated that gains required for restoring normal loudness perception for monaural narrowband signals can lead to higher-than-normal loudness in listeners with hearing loss, particularly for binaural broadband presentation. The present study presents a binaural bandwidth-adaptive dynamic compressor (BBDC) that can apply different gains for narrow- and broadband signals...
November 27, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29209382/listening-to-sentences-in-noise-revealing-binaural-hearing-challenges-in-patients-with-schizophrenia
#10
Noor Alaudin Abdul Wahab, Mohd Normani Zakaria, Abdul Hamid Abdul Rahman, Dinsuhaimi Sidek, Suzaily Wahab
Objective: The present, case-control, study investigates binaural hearing performance in schizophrenia patients towards sentences presented in quiet and noise. Methods: Participants were twenty-one healthy controls and sixteen schizophrenia patients with normal peripheral auditory functions. The binaural hearing was examined in four listening conditions by using the Malay version of hearing in noise test. The syntactically and semantically correct sentences were presented via headphones to the randomly selected subjects...
November 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/29203800/cortical-organization-restored-by-cochlear-implantation-in-young-children-with-single-sided-deafness
#11
Melissa Jane Polonenko, Karen Ann Gordon, Sharon Lynn Cushing, Blake Croll Papsin
Early treatment of single sided deafness in children has been recommended to protect from neurodevelopmental preference for the better hearing ear and from social and educational deficits. A fairly homogeneous group of five young children (≤3.6 years of age) with normal right sided hearing who received a cochlear implant to treat deafness in their left ears were studied. Etiology of deafness was largely cytomegalovirus (n = 4); one child had an enlarged vestibular aqueduct. Multi-channel electroencephalography of cortical evoked activity was measured repeatedly over time at: 1) acute (0...
December 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29195451/why-orchestral-musicians-are-bound-to-wear-earplugs-about-the-ineffectiveness-of-physical-measures-to-reduce-sound-exposure
#12
Remy Wenmaekers, Bareld Nicolai, Maarten Hornikx, Armin Kohlrausch
Symphony orchestra musicians are exposed to noise levels that put them at risk of developing hearing damage. This study evaluates the potential effectivity of common control measures used in orchestras on open stages with a typical symphonic setup. A validated acoustic prediction model is used that calculates binaural sound exposure levels at the ears of all musicians in the orchestra. The model calculates the equivalent sound levels for a performance of the first 2 min of the 4th movement of Mahler's 1st symphony, which can be considered representative for loud orchestral music...
November 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29190488/the-effect-of-simulated-unilateral-hearing-loss-on-horizontal-sound-localization-accuracy-and-recognition-of-speech-in-spatially-separate-competing-speech
#13
Filip Asp, Anne-Marie Jakobsson, Erik Berninger
Unilateral hearing loss (UHL) occurs in 25% of cases of congenital sensorineural hearing loss. Due to the unilaterally reduced audibility associated with UHL, everyday demanding listening situations may be disrupted despite normal hearing in one ear. The aim of this study was to quantify acute changes in recognition of speech in spatially separate competing speech and sound localization accuracy, and relate those changes to two levels of temporary induced UHL (UHL30 and UHL43; suffixes denote the average hearing threshold across 0...
November 22, 2017: Hearing Research
https://www.readbyqxmd.com/read/29135879/cochlear-implantation-in-children-with-congenital-unilateral-deafness-a-case-series
#14
Rainer Linus Beck, Antje Aschendorff, Frederike Hassepaß, Thomas Wesarg, Stefanie Kröger, Till F Jakob, Susan Arndt
OBJECTIVES: Cochlear implant is regarded as a treatment option for hearing rehabilitation of adults with unilateral sensorineural hearing loss. A clear benefit has been experienced in regard to speech comprehension in noise, localization, and quality of life. The aim of this study was to investigate the benefit of cochlear implantation for children with congenital unilateral hearing loss. STUDY DESIGN: Retrospective case series. SETTING: Tertiary referral center; cochlear implant program...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29135878/single-sided-deafness-impact-of-cochlear-implantation-on-speech-perception-in-complex-noise-and-on-auditory-localization-accuracy
#15
Julia Döge, Uwe Baumann, Tobias Weissgerber, Tobias Rader
OBJECTIVE: To assess auditory localization accuracy and speech reception threshold (SRT) in complex noise conditions in adult patients with acquired single-sided deafness, after intervention with a cochlear implant (CI) in the deaf ear. STUDY DESIGN: Nonrandomized, open, prospective patient series. SETTING: Tertiary referral university hospital. PATIENTS: Eleven patients with late-onset single-sided deafness (SSD) and normal hearing in the unaffected ear, who received a CI...
December 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/29135686/cortical-correlates-of-binaural-temporal-processing-deficits-in-older-adults
#16
Ann Clock Eddins, David A Eddins
OBJECTIVES: This study was designed to evaluate binaural temporal processing in young and older adults using a binaural masking level difference (BMLD) paradigm. Using behavioral and electrophysiological measures within the same listeners, a series of stimulus manipulations was used to evaluate the relative contribution of binaural temporal fine-structure and temporal envelope cues. We evaluated the hypotheses that age-related declines in the BMLD task would be more strongly associated with temporal fine-structure than envelope cues and that age-related declines in behavioral measures would be correlated with cortical auditory evoked potential (CAEP) measures...
November 9, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29130442/outcomes-of-hearing-aid-use-by-individuals-with-unilateral-sensorineural-hearing-loss-usnhl
#17
Charles E Bishop, Elgenaid Hamadain, Jason A Galster, Mary Frances Johnson, Christopher Spankovich, Ian Windmill
BACKGROUND: Unilateral sensorineural hearing loss (USNHL) can have a negative impact on functions associated with the advantages of balanced, binaural hearing. Although single-sided deafness, which is a complete loss of audibility in one ear, has gained increased interest in the published research, there is a gap in the literature concerning hearing aid outcomes for individuals with residual, or otherwise "aidable," hearing in the affected ear. PURPOSE: To assess hearing aid outcomes for a group of individuals with USNHL with residual, aidable function...
November 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/29122721/a-common-periodic-representation-of-interaural-time-differences-in-mammalian-cortex
#18
Nelli H Salminen, Simon J Jones, Gestur B Christianson, Torsten Marquardt, David McAlpine
Binaural hearing, the ability to detect small differences in the timing and level of sounds at the two ears, underpins the ability to localize sound sources along the horizontal plane, and is important for decoding complex spatial listening environments into separate objects - a critical factor in 'cocktail-party listening'. For human listeners, the most important spatial cue is the interaural time difference (ITD). Despite many decades of neurophysiological investigations of ITD sensitivity in small mammals, and computational models aimed at accounting for human perception, a lack of concordance between these studies has hampered our understanding of how the human brain represents and processes ITDs...
November 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/29119311/cortical-processing-of-level-cues-for-spatial-hearing-is-impaired-in-children-with-prelingual-deafness-despite-early-bilateral-access-to-sound
#19
Vijayalakshmi Easwar, Hiroshi Yamazaki, Michael Deighton, Blake Papsin, Karen Gordon
Bilateral cochlear implantation aims to restore binaural hearing, important for spatial hearing, to children who are deaf. Improvements over unilateral implant use are attributed largely to the detection of interaural level differences (ILDs) but emerging evidence of impaired sound localization and binaural fusion suggest that these binaural cues are abnormally coded by the auditory system. We used multichannel electroencephalography (EEG) to assess cortical responses to ILDs in two groups: 13 children who received early bilateral cochlear implants (CIs) simultaneously, known to protect the developing auditory cortices from unilaterally driven reorganization, and 15 age matched peers with normal hearing...
November 8, 2017: Brain Topography
https://www.readbyqxmd.com/read/29106867/audio-visual-speech-perception-in-prelingually-deafened-japanese-children-following-sequential-bilateral-cochlear-implantation
#20
Ryosuke Yamamoto, Yasushi Naito, Risa Tona, Saburo Moroto, Rinko Tamaya, Keizo Fujiwara, Shogo Shinohara, Shinji Takebayashi, Masahiro Kikuchi, Tetsuhiko Michida
OBJECTIVES: An effect of audio-visual (AV) integration is observed when the auditory and visual stimuli are incongruent (the McGurk effect). In general, AV integration is helpful especially in subjects wearing hearing aids or cochlear implants (CIs). However, the influence of AV integration on spoken word recognition in individuals with bilateral CIs (Bi-CIs) has not been fully investigated so far. In this study, we investigated AV integration in children with Bi-CIs. METHODS: The study sample included thirty one prelingually deafened children who underwent sequential bilateral cochlear implantation...
November 2017: International Journal of Pediatric Otorhinolaryngology
keyword
keyword
15143
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"