نتایج جستجو برای: high frequency thresholds

تعداد نتایج: 2414701  

Journal: :Brazilian journal of otorhinolaryngology 2007
Leonardo Conrado Barbosa de Sá Marco Antonio de Melo Tavares de Lima Shiro Tomita Silvana Maria Monte Coelho Frota Gisele de Aquino Santos Tatiana Rodrigues Garcia

UNLABELLED Recent studies analyzing audibility thresholds at frequencies over 8 KHz have brought new perspectives on the investigation of auditory damage. These studies, however, have not yet reached a consensus on normal standards for auditory thresholds at these frequencies. AIM To analyze the results of high frequency auditory thresholds in individuals aged between 18 and 29 years with no ...

Journal: :Brazilian journal of otorhinolaryngology 2009
Daniela Cecílio Capra Marques de Oliveira Marco Antonio de Melo Tavares de Lima

UNLABELLED Cigarette smoking can cause many potentially fatal diseases and worsen others. Numerous studies have shown the relationship between smoking and hearing loss. However, the increase in auditory threshold in high frequency arising from smoking has been very little described. AIM to compare low and high frequency auditory thresholds among a group of smoking and non-smoking male individ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اراک - دانشکده علوم انسانی 1389

this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

Journal: :Advances in experimental medicine and biology 2013
William M Hartmann Larisa Dunai Tianshu Qu

Different models of the binaural system make different predictions for the just-detectable interaural time difference (ITD) for sine tones. To test these models, ITD thresholds were measured for human listeners focusing on high- and low-frequency regions. The measured thresholds exhibited a minimum between 700 and 1,000 Hz. As the frequency increased above 1,000 Hz, thresholds rose faster than ...

2015
Jessica J. M. Monaghan Stefan Bleeck David McAlpine

Sensitivity to interaural time differences (ITDs) conveyed in the temporal fine structure of low-frequency tones and the modulated envelopes of high-frequency sounds are considered comparable, particularly for envelopes shaped to transmit similar fidelity of temporal information normally present for low-frequency sounds. Nevertheless, discrimination performance for envelope modulation rates abo...

2017
Kanthaiah Koka Aniket A. Saoji Joseph Attias Leonid M. Litvak

Although, cochlear implants (CI) traditionally have been used to treat individuals with bilateral profound sensorineural hearing loss, a recent trend is to implant individuals with residual low-frequency hearing. Notably, many of these individuals demonstrate an air-bone gap (ABG) in low-frequency, pure-tone thresholds following implantation. An ABG is the difference between audiometric thresho...

Journal: :Journal of the Optical Society of America 1980
G E Legge J M Foley

Contrast masking was studied psychophysically. A two-alternative forced-choice procedure was used to measure contrast thresholds for 2.0 cpd sine-wave gratings in the presence of masking sine-wave gratings. Thresholds were measured for 11 masker contrasts spanning three log units, and seven masker frequencies ranging +/- one octave from the signal frequency. Corresponding measurements were made...

Journal: :The Journal of the Acoustical Society of America 2006
Ali Israr Hong Z Tan Charlotte M Reed

Frequency and amplitude discrimination thresholds along the kinesthetic to cutaneous continuum were evaluated on the left index fingerpad using a multifinger tactual display. Target stimuli were presented either in isolation (no-masker condition) or in the presence of masking stimuli (one- or two-masker conditions). Six reference target signals in the frequency range 2-300 Hz (two each from low...

جوادنیا, شیما, حمیدی تهرانی, مرتضی, طباطبایی, آذردخت, فرهادی, محمد, محمودیان, سعید, نقوی, احمد,

 Background: Different studies have shown that Otoacoustic Emission (OAEs) is generated by Outer Hair Cells (OHCs) and these sensory cells are first structures exposed to damage of high level noise. Therefore minor impairment in OHCs can lead to lack of response of OAE. The purpose of the current study is to compare the pure tone thresholds, Transient Evoked Otoacoustic Emission (TEOAE...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید