نتایج جستجو برای: behavioral hearing threshold

تعداد نتایج: 376783  

2016
Hossein Ansari Alireza Ansari-Moghaddam Mahdi Mohammadi Sayed Mehdi Tabatabaei Babak Fazli Mohammadreza Pishevare-Mofrad

OBJECTIVE This study aims to investigate loss of hearing among drivers in Zahedan, southeastern Iran. PATIENTS & METHODS This study carried out on a total of 1836 drivers in Zahedan in 2013. Loss of hearing in both ears was measured at 250, 1000, 2000, 3000, 4000, 6000, and 8000 Hertz. The demographic variables, blood parameter and anthropometric data were recorded through interview and exami...

Background: Many elderly individuals complain of difficulty in understanding speech in noise despite having normal hearing thresholds. According to previous studies, auditory training leads to improvement in speech-in-noise perception, but these studies did not consider the etiology, so their results cannot be generalized. The present study aimed at investigating the effectiveness of envelope-b...

2012
Alma Janeth Moreno-Aguirre Efraín Santiago-Rodríguez Thalía Harmony Antonio Fernández-Bouzas

BACKGROUND Approximately 2-4% of newborns with perinatal risk factors present with hearing loss. Our aim was to analyze the effect of hearing aid use on auditory function evaluated based on otoacoustic emissions (OAEs), auditory brain responses (ABRs) and auditory steady state responses (ASSRs) in infants with perinatal brain injury and profound hearing loss. METHODOLOGY/PRINCIPAL FINDINGS A ...

ژورنال: پژوهش در پزشکی 2005
سیدعباس صفوی نائینی, , علی فتاحی بافقی, , محمدرضا فتح العلومی, ,

Background : Sound pollution has unwarranted effects on hearing loss. Despite numerous prior studies on sound pollution and its effects in industrial environments, scanty studies are available among musicians. The aim of the present study is to evaluate the association between musical instruments noise and hearing loss. Material and method : For this prospective study, 50 professional players o...

2011
Robert Galambos

Absorption of pulsed microwave nergy can produce an auditory sensation in human beings with normal hearing. The phenomenon manifests itself as a clicking, buzzing, or hissing sound depending on the modulatory characteristics of the microwaves. While the energy absorbed (--• 10/z J/g) and the resulting increment of temperature (--• 10 -6 øC) per pulse at the threshold of perception are small, mo...

ژورنال: طب کار 2017

Background: Exposure to noise can induce hearing loss. Thus noise induced hearing loss is one of the main concerns in interventional study on health effect of noise exposure. We analyzed pre and post exposure audiometeries of volunteers in a clinical trial study that we conducted for effect of noise exposure on cardiovascular system. Methods: In a clinical trial study, 100 healthy, 20-40 aged, ...

Journal: :Ear and hearing 2016
Cristen Olds Luca Pollonini Homer Abaya Jannine Larky Megan Loy Heather Bortfeld Michael S Beauchamp John S Oghalai

OBJECTIVES Cochlear implants are a standard therapy for deafness, yet the ability of implanted patients to understand speech varies widely. To better understand this variability in outcomes, the authors used functional near-infrared spectroscopy to image activity within regions of the auditory cortex and compare the results to behavioral measures of speech perception. DESIGN The authors studi...

Journal: :Noise & health 2010
Ali Karimi Saleh Nasiri Farshid Khodaparast Kazerooni Mohammad Oliaei

Hearing sense is one of the key elements which may have impact on the driver's task quality. This cross-sectional study investigates the hearing status of 500 truck drivers by pure tone audiometry (AC) in one of the cities in Fars province, Iran. Hearing threshold levels of the subjects were measured in frequencies of 500Hz-8000Hz. Screening and determination of permanent threshold shift (PTS) ...

Background: Mother-child interaction and spiritual well-being can influence child behavioral disorders by affecting the motherchr('39')s mental health. The present study aimed to investigate the relationship of mother-child interaction and spiritual well-being with child behavioral disorders through the mediation o mental health in mothers of children with hearing impairment. Methods: The stud...

2013
Daniela Polo C. Silva Priscila Suman Lopez Jair Cortez Montovani

OBJECTIVE To report an infant with congenital cytomegalovirus and progressive sensorineural hearing loss, who was assessed by three methods of hearing evaluation. CASE DESCRIPTION In the first audiometry, at four months of age, the infant showed abnormal response in Otoacoustic Emissions and normal Auditory Brainstem Response (ABR), with electrophysiological threshold in 30dBnHL, in both ears...

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