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Related Concept Videos

The Cochlea01:13

The Cochlea

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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.
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Design Example01:23

Design Example

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The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
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Hair Cells01:22

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Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here.
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Auditory Pathway01:15

Auditory Pathway

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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...
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Sensory Modalities01:15

Sensory Modalities

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
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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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The Crossmodal Congruency Task as a Means to Obtain an Objective Behavioral Measure in the Rubber Hand Illusion Paradigm
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Designing the Model Human Cochlea: An Ambient Crossmodal Audio-Tactile Display.

M Karam, F A Russo, D I Fels

    IEEE Transactions on Haptics
    |January 1, 2009
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces the Model Human Cochlea (MHC), a sensory substitution system translating music into vibrations for the deaf and hard of hearing. The MHC enhances music accessibility by conveying emotional content through tactile feedback.

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    Area of Science:

    • Biomedical Engineering
    • Neuroscience
    • Human-Computer Interaction

    Background:

    • Auditory information is crucial for music appreciation.
    • Deaf and hard-of-hearing individuals face barriers accessing music's emotional content.
    • Sensory substitution offers a potential solution for auditory deprivation.

    Purpose of the Study:

    • To develop and evaluate the Model Human Cochlea (MHC) for translating music into vibrotactile stimuli.
    • To improve accessibility to music's emotional information for individuals with hearing impairments.
    • To explore sensory substitution models for music translation.

    Main Methods:

    • Developed a Model Human Cochlea (MHC) prototype using a chair form factor with voice coils.
    • Implemented two sensory substitution models for music-to-vibration translation.
    • Conducted experiments to assess the MHC's effectiveness in conveying musical information.

    Main Results:

    • The MHC successfully translates music into discrete vibrotactile signals.
    • The system demonstrated potential in identifying masked musical sections.
    • Experimental results indicate the MHC's effectiveness in enhancing music accessibility.

    Conclusions:

    • The Model Human Cochlea (MHC) is a viable sensory substitution technique for making music accessible.
    • Further research is needed to refine the system and explore new applications.
    • The MHC has the potential to significantly improve the quality of life for individuals with hearing loss by enabling music engagement.