Research

Speech intonation and melodic contour perception in CI users

Cochlear implant (CI) users have difficulty perceiving some intonation cues in speech and melodic contours because of poor frequency selectivity in the cochlear implant signal. But does perceptual accuracy for speech intonation or melodic contour differ as a function of auditory status (NH, CI), perceptual category (falling versus rising intonation/contour), pitch perception, or individual differences (e.g., age, hearing history)?

Researchers from the University of Iowa have found that children with CIs were less

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Auditory Sensitivity Increases in Tinnitus Ears

study

A joint Canadian and French study has concluded that auditory sensitivity is enhanced in tinnitus subjects compared to non-tinnitus subjects, including subjects with normal audiograms. “Increased auditory sensitivity, also called hyperacusis, is a pervasive complaint of people with tinnitus,” say the authors. “The high prevalence of hyperacusis in tinnitus subjects suggests that both symptoms have a common origin.” It has been suggested that they may result from a

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Whistles contribute to hearing loss in sports referees

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© Petr Ivanov - fotolia

Referees take note. An American study suggests that whistle blowing may be harmful to your hearing. A study published in The Journal of Occupational and Environmental Hygiene reveals that a single whistle blow ranges between 104 and 116 decibels, far exceeding safe noise levels. "I did expect the numbers to be kind of high, but I didn’t expect them to be that high," says Greg Flamme, a Western Michigan University professor and co-author of the study. Flamme’s team asked sports officials how well they hear in general and if they

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HIV increases sudden hearing loss in the young

Taiwan

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DR

Researchers have found that having HIV appears to increase the risk of sudden sensorineural hearing loss (SSHL), particularly among young people. The Taiwan-based study reveals that people under 35 or younger with HIV had double the risk of sudden hearing loss compared with HIV-negative controls. But, in a retrospective population-based cohort, there was no significant difference between the groups for people 36 or older, according to the research which was conducted by Dr. Charlene Lin and her team at the University of Berkley in California. The researchers

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Early implant means better language for cochlear patients

Research

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© Bjorn Knetsch

Children implanted with cochlear implant by 12 months of age demonstrate better language development compared with those who receive their cochlear implant between 13 and 24 months, according to Australian research. The multi-partner study reviewed the communications development of 35 children who were implanted between six and 12 months of age and 85 children implanted between 13 and 24 months of age. Audiological assessments included

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Resveratrol protects against Acoustic Trauma

RESEARCH

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© JB London (cc-by-nc)

Should red wine be prescribed before a concert? The idea is not as crazy as it sounds if we believe recent studies on Resveratrol, a polyphenol present in red grapes and red wine. This molecule has indeed the ability to reduce the expression of the COX-2 protein and the formation of reactive oxygen species (ROS), two phenomena observed following exposure to intense noise. In fact, when the COX-2 protein is overexpressed, it engages into anti-inflammatory mechanisms; as for ROS, they are produced

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Tinnitus Implant: Looking for the code of silence

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In February 2013 the first Tinnitus Implant was placed at the Maastricht University Medical Centre+ (MUMC+). The implant was received by a patient that is deaf on one side and suffers from severe tinnitus. Aim is to eliminate tinnitus. Prof. dr. Robert Stokroos, ENT surgeon, performed the implantation. “We are looking for the code of silence.”

In The Netherlands approximately two million people suffer from tinnitus.

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Hearing loss is in the genetics

Researchers at Tel Aviv University have discovered that hearing loss may be linked to a genetic mutation.

The researchers found a genetic mutation in two families with hereditary high frequency hearing loss. The mutated gene has not been previously linked to hearing loss. It has NESP4, a protein expressed

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Copper combats otitis in hearing aid patients

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Copper was the first metal certified as antimicrobial, a property which led otorhinolaryngologist Gustavo Bravo to investigate whether its use could prevent external otitis in hearing aid users. The first

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Towards a treatment for type 1 Usher Syndrome

Research

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Dr Michel Leibovici/Pasteur

A team of American researchers, led by Michelle Hastings (Rosalind Franklin University), has recently developed a technique to rescue hearing in a mouse model of type 1 Usher Syndrome. In 6 to 8% of cases, type 1 is caused by mutation of the Ush1c gene.

They achieved this advance using antisense therapy. By injecting the mice with specific antisens oligonucleotide (ASO) targeting the desired messenger RNA, scientists were able to

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