نتایج جستجو برای: tinnitus
تعداد نتایج: 5394 فیلتر نتایج به سال:
Numerous behavioral paradigms have been developed to assess tinnitus-like behavior in animals. Nevertheless, they are often limited by prolonged training requirements, as well as an inability to simultaneously assess onset and lasting tinnitus behavior, tinnitus pitch or duration, or tinnitus presence without grouping data from multiple animals or testing sessions. To enhance behavioral testing...
Acoustic stimulation with hearing aids or noise devices is frequently used in tinnitus therapy. However, such behind-the-ear devices are limited in their high-frequency output with an upper cut-off frequency of approximately 5-6 kHz. Theoretical modeling suggests that acoustic stimulation treatments with these devices might be most effective when the tinnitus pitch is within the stimulated freq...
BACKGROUND Subjective tinnitus is the perception of sound in the absence of a corresponding external sound for which there is no known medical etiology. For a minority of individuals with tinnitus, the condition impacts their ability to lead a normal lifestyle and is severely debilitating. There is no known cure for tinnitus, so current therapy focuses on reducing the effect of tinnitus on the ...
Animal models of tinnitus allow us to study the relationship between changes in neural activity and the tinnitus percept. Here, guinea pigs were subjected to unilateral noise trauma and tested behaviourally for tinnitus 8 weeks later. By comparing animals with tinnitus with those without, all of which were noise-exposed, we were able to identify changes unique to the tinnitus group. Three physi...
Stress is a significant factor influencing the clinical course of tinnitus. The auditory system is particularly sensitive to the effects of various stress factors (chemical, oxidative, emotional, etc.). Different stages of reaction (alarm, resistance, exhaustion) lead to different characteristics of tinnitus and to different therapeutic approaches. Individual characteristics of stress reaction ...
Temporary tinnitus is a common consequence of noise exposure, and may share important mechanisms with chronic tinnitus. Noise-induced hearing loss is the most prevalent cause of chronic tinnitus. The reversibility of temporary tinnitus offers some practical experimental advantages. We therefore adapted a behavioral method based on gap detection to measure temporary tinnitus following brief acou...
Introduction & Objective: Tinnitus is one of the most common otologic complaints. This study was designed for evaluation of different kinds of hearing aids effectiveness in treatment of tinnitus in elderly patients in Hamadan. Materials & Methods: In this clinical trial study 27 referral patients with complaint of tinnitus and hearing loss to otolaryngology clinics in Hamadan during 2006-7 w...
OBJECTIVE Tinnitus is considered to be highly heterogeneous with respect to its etiology, its comorbidities and the response to specific interventions. Subtyping is recommended, but it remains to be determined which criteria are useful, since it has not yet been clearly demonstrated whether and to which extent etiologic factors, comorbid states and interventional response are related to each ot...
Contents 1 Introduction to the thesis 7 2 Plasticity in tinnitus patients: a role for the efferent auditory system? 19 3 Asymmetry in primary auditory cortex activity in tinnitus patients 37 and controls 4 Contralateral suppression of otoacoustic emissions in tinnitus patients 55 5 Wavelet-analysis demonstrates no abnormality in contralateral 71 suppression of otoacoustic emissions in tinnitus ...
OBJECTIVE To relate poststapedectomy change in tinnitus loudness to change in tinnitus severity. STUDY DESIGN Prospective, within-subjects. SETTING A single otology and neurotology subspecialty referral practice. SUBJECTS AND METHODS Forty-nine subjects undergoing stapedectomy completed the study between January 2012 and October 2013. Tinnitus instruments, audiometric data, and demographi...
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