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Overactive nerves in head and neck may account for 'ringing in the ears'

Research by Michigan Medicine suggests that overactive nerves in the head and neck may contribute to tinnitus. Acupuncture and trigger point therapy may be effective treatments for people with 'ringing in the ears'. The study found hyperactivity of touch-sensing neurons in animals, which could lead to new insights into the condition.

SourceMichigan Medicine - University of Michigan·JournalEuropean Journal of Neuroscience·DateJan 10, 2008

Sight, sound processed together and earlier than previously thought

Researchers at Duke University Medical Center have discovered that auditory and visual information are integrated in the brain before being sent to the cortex. The findings suggest that hearing and vision may be more closely linked than previously believed, with implications for understanding how we perceive the world around us.

SourceDuke University Medical Center·JournalProceedings of the National Academy of Sciences·DateOct 29, 2007

Ability to listen to 2 things at once is largely inherited, says twin study

A twin study published by the NIH/NIDCD found that a person's ability to process multiple sounds simultaneously is largely inherited. The researchers discovered that identical twins were more similar in their dichotic listening abilities, with a strong genetic component responsible for up to 73% of the variation.

Do women really talk more than men?

A study published in Science debunks the popular stereotype that females use more words than men, revealing both sexes use an average of 16,000 words per day. The research used a digital voice recorder to track daily interactions over eight years and analyzed transcripts from nearly 400 university students.

SourceUniversity of Texas at Austin·JournalScience·DateJul 5, 2007

A 52-year-old woman with a hoarse voice and tingling in the hand

A 52-year-old woman presented to an ear, nose, and throat doctor with a hoarse voice and tingling in the hand. After a 3-year history of right-sided facial pain and a brain scan showing a small pituitary gland cyst, she was diagnosed with a rare condition. The authors discuss their approach to diagnosis and treatment.

SourcePLOS·JournalPLOS Medicine·DateMar 5, 2007

Sniffers show that humans can track scents, and that two nostrils are better than one

Researchers at UC Berkeley found that humans gain a performance advantage from cross-nostril comparisons when tracking scents. With training, humans can improve their accuracy significantly and nearly double their speed. This discovery challenges the common assumption that humans are poor smellers compared to other mammals.

SourceUniversity of California - Berkeley·JournalNature Neuroscience·DateDec 18, 2006

Clinical factors of tinnitus influence perceived loudness and annoyance

A study analyzing data from a mail survey found that tinnitus perceived loudness and annoyance are influenced by clinical factors like duration, consistency, and hearing loss. Most patients with severe tinnitus experience high levels of distress, especially men, older adults, and those with co-existing conditions.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateDec 18, 2006

ISU researchers test combustion for NASA

Researchers at Iowa State University are testing combustion for NASA using a new technology called electric particulate suspension. The goal is to understand how powders burn and ignite under various conditions, which could lead to improved fire safety and the development of a new safety standard.

Training improves sound localization in ferrets

Researchers trained adult ferrets to localize sounds despite obstructed hearing, finding that frequency of training was crucial for improvement. The study showed that the brain can adapt to abnormal spatial cues rapidly with intensive training, suggesting potential benefits for patients with hearing disorders.

SourcePLOS·JournalPLOS Biology·DateMar 6, 2006

The genetic origins of corn on the cob

Researchers at Cold Spring Harbor Laboratory have isolated the ramosa1 gene, which controls flower-bearing branch arrangement in corn. This gene played a key role in suppressing branching in early domesticated corn, leading to straight rows of kernels and compact ears. The study also reveals that plants with different levels of ramosa1...

Researchers explain how the brain integrates head position and acoustics

Researchers discovered that fusiform cells in the cochlear nucleus integrate acoustic information with head and ear position information to pinpoint sound sources. The study found that synapses transmitting acoustic information are stable, while those carrying head and ear position information exhibit plasticity.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateDec 16, 2002