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Related Concept Videos

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.
Anatomy of the Ear01:16

Anatomy of the Ear

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...
Auditory Pathway01:15

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 the...
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...
Equilibrium and Balance01:15

Equilibrium and Balance

The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...

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Related Experiment Video

Updated: May 15, 2026

A Method to Study Adaptation to Left-Right Reversed Audition
07:14

A Method to Study Adaptation to Left-Right Reversed Audition

Published on: October 29, 2018

Why the audiogram is upside-down.

James Jerger1

  • 1Department of Cognition & Neuroscience, School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX 75080, USA. jjerger@utdallas.edu

International Journal of Audiology
|January 16, 2013
PubMed
Summary
This summary is machine-generated.

Two early 20th-century audiometric threshold recording methods, proposed by Fowler and Fletcher, offered sensible alternatives to current systems. These historical approaches could have improved data representation and maintained scientific graphing traditions.

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Area of Science:

  • Audiology
  • Acoustics
  • Medical History

Background:

  • The early 20th century saw the development of standardized methods for measuring hearing sensitivity.
  • Edmund Prince Fowler, an otologist, and Harvey Fletcher, a physicist, independently proposed novel recording systems.
  • These systems aimed to improve the accuracy and clarity of audiometric data.

Observation:

  • Both Fowler's and Fletcher's methods were considered sensible and scientifically sound.
  • The proposed systems offered potential advantages over the audiometric recording practices of the time.
  • A key aspect was the preservation of traditional graph orientation for scientific data.

Findings:

  • Fowler and Fletcher developed distinct yet effective methods for audiometric threshold data recording.
  • Their approaches represented significant advancements in audiological measurement techniques.
  • These methods were designed with a strong consideration for scientific graphing conventions.

Implications:

  • Adoption of either Fowler's or Fletcher's system could have led to a more scientifically consistent approach to audiology.
  • The present system may not fully adhere to the scientific traditions preserved in these historical methods.
  • Revisiting these early proposals could offer insights into optimizing current audiometric data visualization and interpretation.