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Related Concept Videos

Hearing01:31

Hearing

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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.
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Anatomy of the Ear01:16

Anatomy of the Ear

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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Auditory Perception01:17

Auditory Perception

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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...
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Physical Assessment of the Respiratory Tract IV: Auscultation01:28

Physical Assessment of the Respiratory Tract IV: Auscultation

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Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
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Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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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...
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Perception of Sound Waves01:01

Perception of Sound Waves

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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.
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Clinical Practice Guidelines: Cochlear Implants.

Journal of the American Academy of Audiology·2019
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Consequences and Treatment Options for Severe-to-Profound Hearing Loss.

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Conventional Amplification for Children and Adults with Severe-to-Profound Hearing Loss.

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Cochlear Implantation for Children and Adults with Severe-to-Profound Hearing Loss.

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Related Experiment Video

Updated: Sep 3, 2025

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

Published on: January 23, 2017

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Audiologic Assessment.

Emily A Benson1, Jessica J Messersmith2

  • 1Department of Veteran Affairs Black Hills Healthcare System, Vermillion, South Dakota.

Seminars in Hearing
|July 29, 2022
PubMed
Summary
This summary is machine-generated.

Accurate hearing aid fitting requires a thorough patient history and comprehensive audiological evaluation, including specific tests. These results guide clinicians and patients in selecting the best hearing aid options.

Keywords:
audiologic testinghearinghearing aids

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Area of Science:

  • Audiology
  • Hearing Healthcare

Background:

  • Hearing aid fitting decisions require understanding patient needs.
  • Clinicians need comprehensive patient data for effective treatment planning.

Purpose of the Study:

  • To outline procedures for audiological case history and evaluation.
  • To align these procedures with Audiology Practice Standards Organization (APSO) guidelines.
  • To demonstrate how evaluation results impact hearing aid selection and fitting.

Main Methods:

  • Conducting thorough medical and audiological case histories.
  • Performing comprehensive audiological evaluations: pure-tone, word recognition, speech-in-noise, and loudness discomfort level testing.
  • Adhering to APSO Guidelines for Adult Hearing Aid Fittings Standards 1 and 4.

Main Results:

  • Detailed case history and audiological data provide a foundation for informed decisions.
  • Specific tests like speech-in-noise and loudness discomfort measures offer crucial insights.
  • Adherence to APSO standards ensures best practices in hearing aid fitting.

Conclusions:

  • Comprehensive audiological evaluation is essential for optimal hearing aid selection.
  • Patient-specific data directly influences the success of hearing aid fittings.
  • Following established guidelines ensures high-quality audiological care and patient outcomes.