Introduction: After presbycusis, noise-induced hearing loss is the second most common cause of acquired hearing loss. Numerous studies have shown that high-intensity noise exposure increases free radical species; therefore, use of antioxidants to detoxify the free radicals can prevent cellular damage in the cochlea. We studied the potential hearing protective effect of different doses of ascorb...

Magnetic resonance imaging (MRI) devices produce noise, which may affect patient's or operators' hearing. Some cases of hearing impairment after MRI procedure have been reported with different patterns (temporary or permanent, unilateral or bilateral, with or without other symptoms like tinnitus). In this report, a case of bilateral sensorineural hearing loss in an otherwise healthy patient und...

OBJECTIVES A systematic review of the literature and meta-analysis was conducted to assess the nature and quality of the evidence for the use of hearing instruments in adults with a unilateral severe to profound sensorineural hearing loss. DESIGN The PubMed, EMBASE, MEDLINE, Cochrane, CINAHL, and DARE databases were searched with no restrictions on language. The search included articles from ...

In this article some of the different technologies and its functioning as well as some technological aids for people with partial or total auditory deficiency will be presented. The objective of the auditory rehabilitation is to develop the capacity of auditory perception to the individual carrying auditory deficiency, with aid of devices that can amplify the sound. Between these devices, we ci...

Lexical tone perception in Thai adults with normal hearing and those with sensorineural hearing-loss using hearing aids was investigated to evaluate the benefit of using hearing aids for tone perception. Tone perception pattern across groups was also compared. Identification tests (with white noise and clean conditions) using a two alternative forced choice task were carried out to systematical...

Just-noticeable differences (JNDs) have been measured for various features of sounds, but despite its importance to communication, there is no benchmark for what is a just-noticeable-and possibly meaningful-difference in speech-to-noise ratio (SNR). SNR plays a crucial role in speech communication for normal-hearing and hearing-impaired listeners. Difficulty hearing speech in background noise-a...

OBJECTIVE The aim of this paper was to review traditional approaches to habilitation of unilateral hearing losses as well as new research concerning management of unilateral hearing loss. DATA SOURCES Literature review/systematic review. REVIEW METHODS A PubMed search was performed for articles pertaining to unilateral hearing loss and academic loss and academic performance. Articles ranged...

Hearing aids are devices used by hearing impaired people to compensate hearing losses. Digital hearing aids are better in performance over the analog hearing aids, since analog hearing aids work as amplifier. Digital hearing aids are programmable to adjust the gain value, enhance signal to noise ratio, reduction in noise, feedback cancellation etc . In the present work, study of digital hearing...

For assessment of hearing assistance devices, a speaker discrimination test was developed. The speech material was drawn from a “Japanese phonetically balanced word speech database” which was developed by Electrotechnical Laboratory, Japan (ETL-WD corpus). The test consisted of ten words spoken by ten speakers. The words were selected considering familiarity, and the speakers were selected cons...

In this study mothers were told “your baby can’t hear you,” and their interactions recorded in either (i) a hearing condition in which infants could hear their mothers or (ii) a hearing loss condition in which infants could not hear their mothers. It was found that pitch levels of speech were similar in both conditions, but that there was vowel hyperarticulation in the hearing, but not the hear...