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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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Related Experiment Video

Updated: Aug 29, 2025

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Bimodal Cochlear Implant Processing based on Assisted Hearing algorithms with CCi-MOBILE: an open-source research

Ria Ghosh, John H L Hansen

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |September 10, 2022
    PubMed
    Summary

    This study validates CCi-MOBILE, a portable device enabling simultaneous electric and acoustic stimulation for cochlear implant (CI) and hearing aid (HA) users. It supports bimodal testing for improved speech perception and sound localization research.

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    Area of Science:

    • Audiology
    • Neuroscience
    • Biomedical Engineering

    Background:

    • Cochlear implant (CI) and hearing aid (HA) users face challenges in speech understanding and sound localization, especially in noisy environments.
    • Bimodal stimulation (simultaneous use of a CI in one ear and a HA in the other) shows promise for improving speech perception and localization.
    • Existing research platforms for bimodal testing are often limited in portability or functionality.

    Purpose of the Study:

    • To verify and implement synchronized bimodal (electric-acoustic) output for research on sound and acoustic localization algorithms.
    • To validate the CCi-MOBILE device as an efficient platform for exploring bimodal stimulation paradigms.

    Main Methods:

    • Verification and implementation of synchronized electric and acoustic stimulation output.
    • Utilizing the CCi-MOBILE, an open-source, portable signal processing research device.
    • Focusing on supporting sound and acoustic localization algorithms for experimental investigations.

    Main Results:

    • Successful verification and implementation of synchronized bimodal output.
    • Demonstrated the CCi-MOBILE's capability to efficiently support bimodal testing.
    • Provided a validated platform for investigating sound localization and speech perception with electric-acoustic stimulation.

    Conclusions:

    • The CCi-MOBILE device offers a validated and efficient solution for synchronized bimodal stimulation research.
    • This platform facilitates the exploration of novel signal processing and psychoacoustic paradigms for hearing-impaired individuals.
    • The findings support further research into optimizing bimodal fitting for enhanced auditory perception and spatial awareness.