Related Experiment Video
Updated: May 21, 2026
06:04
Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Speech perception in cochlear implant users with the HiRes 120 strategy: a systematic review
Tatiana Mendes de Melo1, Maria Cecília Bevilacqua, Orozimbo Alves Costa
1Speech and Hearing Therapy, University of Guarulhos. tmelo@prof.ung.br
Brazilian Journal of Otorhinolaryngology
|June 21, 2012
Summary
The HiRes 120 strategy improves hearing in noisy environments for cochlear implant users. Performance gains depend on user age, hearing loss duration, and acclimatization time.
Area of Science:
- Audiology
- Signal Processing
- Biomedical Engineering
Background:
- Spectral gap details remain a challenge in transmitted information, impacting speech perception.
- Virtual spectral channels are explored to optimize spectral details.
- HiRes 120 represents a novel signal processing approach for cochlear implants.
Purpose of the Study:
- To evaluate the auditory performance of cochlear implant users utilizing the HiRes 120 strategy.
- Assess the effectiveness of HiRes 120 in different listening conditions.
Main Methods:
- A literature review was performed using an electronic database in 2011.
- Specific keywords were used for a bibliographic search.
- Studies were selected based on study type, subjects, intervention, and results.
Main Results:
- The HiRes 120 strategy enhances hearing performance in noisy environments.
- No significant improvement was observed in quiet listening conditions.
- Optimization of speech perception is linked to user age, sensory deprivation duration, and acclimatization.
Conclusions:
- HiRes 120 shows promise for improving cochlear implant user hearing in complex soundscapes.
- Individual user factors significantly influence the benefits derived from the HiRes 120 strategy.
- Further research may explore refining HiRes 120 for quiet environments and diverse user profiles.
Related Concept Videos
01:13The 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.
01:21Perceiving 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...
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...