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Related Concept Videos

Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by identifying...
Perception of Sound Waves01:01

Perception of Sound Waves

The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The Cochlea01:13

The Cochlea

The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
Hearing01:31

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 Perception01:17

Auditory Perception

The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
Sound Intensity Level00:53

Sound Intensity Level

Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...

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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
14:05

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Published on: January 23, 2017

Consensus on key concepts in audiometry.

Hassan Ali Alfares1, David Harbo Jordell1, Jesper Yde1

  • 1Copenhagen Hearing and Balance Center, Department of Otorhinolaryngology - Head and Neck Surgery and Audiology, Copenhagen University Hospital - Rigshospitalet.

Danish Medical Journal
|June 11, 2026
PubMed
Summary
This summary is machine-generated.

A Delphi study defined core audiology and hearing test interpretation competencies for doctors, otorhinolaryngology residents, and audiology subspecialists. This consensus guides audiological training curriculum development.

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Area of Science:

  • Audiology and Hearing Science
  • Medical Education
  • Otorhinolaryngology

Background:

  • Gaps identified in current audiological training.
  • Need for standardized curriculum in audiometry and interpretation.
  • Targeted training for different medical professional levels.

Purpose of the Study:

  • Develop a consensus-based curriculum for audiometry and hearing test interpretation.
  • Define essential concepts for three distinct learner groups.
  • Address deficiencies in audiological education.

Main Methods:

  • Structured three-round Delphi methodology.
  • Online questionnaires for content experts and stakeholders.
  • Iterative refinement of key concepts.

Main Results:

  • Consensus reached on 71 unique items from 303 initial suggestions.
  • Defined 19 core concepts for all doctors.
  • Identified 53 concepts for ORL specialists and 71 for audiology subspecialists.

Conclusions:

  • Established expert consensus on audiometry interpretation competencies.
  • Provides a foundation for an e-learning curriculum.
  • Supports structured audiological training integration.