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Related Concept Videos

Hearing

Hearing

When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.

Auditory Pathway

Auditory Pathway

Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...

Echo

Echo

The human ear cannot distinguish between two sources of sound if they happen to reach within a specific time interval, typically 0.1 seconds apart. More than this, and they are perceived as separate sources.
Imagine the sound is reflected back to the ears. Assuming that the source is very close to the human, the difference between hearing the two sounds—the emitted sound and the reflected sound—may be more than the minimum time for perceiving distinct sounds. If this is the case,...

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Related Experiment Video

Updated: Sep 10, 2025

A Low Cost Setup for Behavioral Audiometry in Rodents

A Low Cost Setup for Behavioral Audiometry in Rodents

Published on: October 16, 2012

Early Hearing Detection.

Ursula M Findlen¹, Prashant S Malhotra², Lisa L Hunter³

¹Division of Clinical Therapies, Audiology Department, Nationwide Children's Hospital, Columbus, OH, USA; Department of Pediatric Otolaryngology, Nationwide Children's Hospital, 700 Children's Drive, Columbus, OH 43205, USA; The Ohio State University, College of Medicine, Columbus, OH, USA.

Clinics in Perinatology

|August 24, 2025

Summary

This summary is machine-generated.

Newborn hearing screening is widespread in the US, but timely diagnosis and intervention remain a challenge. Addressing barriers is crucial for optimal child development outcomes.

Keywords:

Congenital hearing loss Early hearing detection Early intervention Newborn hearing screening

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Last Updated: Sep 10, 2025

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Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses

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Published on: October 26, 2019

Area of Science:

Pediatrics
Audiology
Public Health

Background:

Newborn hearing screening programs in the US have achieved high coverage rates.
Despite widespread screening, less than 50% of infants receive timely diagnosis and intervention for hearing loss.

Purpose of the Study:

To highlight the critical need for timely diagnosis and intervention in newborn hearing loss.
To identify barriers hindering early diagnosis and propose effective strategies for improvement.

Main Methods:

Review of existing newborn hearing screening program data and outcomes.
Analysis of barriers to timely diagnosis and intervention.
Identification of key healthcare providers involved in congenital hearing loss management.

Main Results:

While screening coverage exceeds 98%, a significant gap exists in timely diagnosis and intervention.
Barriers impede families from accessing essential services, impacting long-term child development.
Pediatricians and otolaryngologists play a pivotal role in facilitating early detection and management.

Conclusions:

Effective strategies are necessary to overcome diagnostic barriers and ensure timely intervention.
Enhanced collaboration among healthcare providers can improve outcomes for children with congenital hearing loss.
Optimizing the diagnostic and intervention pathway is essential for maximizing developmental potential.