نتایج جستجو برای: high frequency thresholds

تعداد نتایج: 2414701  

2015
Cristiane Nehring Magda Aline Bauer Adriane Teixeira

Introduction High sound pressure levels can cause hearing loss, beginning at high frequencies. Objective To analyze the hearing thresholds of dance teachers. Methods This study had a cross-sectional, observational, prospective, and descriptive design. Conventional and high-frequency hearing evaluations were performed with dance teachers and subjects in the control group. Results In all, 64 indi...

Journal: :Brazilian journal of otorhinolaryngology 2007
Mônica de Sá Ferreira Katia de Almeida Ciríaco Cristóvão Tavares Atherino

UNLABELLED Relatively poorer audibility threshold for high frequency was found in children with medical history of multiples episodes of secretory otitis media. AIM to characterize the audibility threshold for high frequencies in normal-hearing children with medical history of multiples episodes of bilateral secretory otitis media. MATERIALS AND METHODS a sample of 31 children, from both ge...

Journal: :The Japanese Journal of Physiology 1992

Journal: :Hydrology and Earth System Sciences 2008

2014
Carla Gentile Matas Rosanna Giaffredo Angrisani Fernanda Cristina Leite Magliaro Aluisio Augusto Cotrim Segurado

OBJECTIVE To characterize the findings of behavioral hearing assessment in HIV-positive individuals who received and did not receive antiretroviral treatment. METHODS This research was a cross-sectional study. The participants were 45 HIV-positive individuals (18 not exposed and 27 exposed to antiretroviral treatment) and 30 control-group individuals. All subjects completed an audiological ev...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

the purpose of the present study was to investigate the relationship between fear of negative evaluation (fne) and communication strategies (css) among iranian efl learners. it was aimed to examine the differences in the use of communication strategies between speakers with high or low degree of fear of negative evaluation. the current study was a case study consisting of 10 english learners at...

Journal: :Vision Research 1999
Kaisa Tiippana Risto Näsänen

The aim of this study was to investigate the spatial-frequency bandwidth of perceived suprathreshold contrast. It has been shown that for grating stimuli contrast detection thresholds depend on spatial frequency, grating area and the number of orientation components. However, suprathreshold contrast perception exhibits contrast constancy, i.e. suprathreshold contrast matches are independent of ...

Journal: :Neuroscience letters 2005
Iréne Lund Thomas Lundeberg Jan Kowalski Elisabeth Svensson

Gender differences in pain perception have been frequently discussed, but the documented gender-related pain-alleviating effects of non-pharmacological methods are sparse. In this study we aimed to investigate changes in electrical sensory thresholds and electrical pain thresholds, in response to high frequency transcutaneous electrical nerve stimulation, TENS, for 20 min in healthy women (n=29...

Journal: :The journal of international advanced otology 2015
Ainul Huda Sulaiman Ruby Husain Kumar Seluakumaran

OBJECTIVE The usage of personal listening devices (PLDs) is associated with risks of hearing loss. The aim of this study is to evaluate the effects of music exposure from these devices on high-frequency hearing thresholds of PLD users. MATERIALS AND METHODS A total of 282 young adults were questioned regarding their listening habits and symptoms associated with PLD listening. Their audiogram ...

2016
Jiwon Chang Namhyung Ryou Hyung Jin Jun Soon Young Hwang Jae-Jun Song Sung Won Chae Harriet de Wit

OBJECTIVES In the present study, we aimed to determine the effect of both active and passive smoking on the prevalence of the hearing impairment and the hearing thresholds in different age groups through the analysis of data collected from the Korea National Health and Nutrition Examination Survey (KNHANES). STUDY DESIGN Cross-sectional epidemiological study. METHODS The KNHANES is an ongoi...

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