Related Experiment Video
Updated: Jun 24, 2026
03:49
Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
Published on: October 11, 2024
Hearing aid outcomes for listeners with high-frequency hearing loss
Christina M Roup1, Colleen M Noe
1The Ohio State University, Columbus, USA. roup.2@osu.edu
American Journal of Audiology
|March 25, 2009
Summary
Listeners with high-frequency sensorineural hearing loss (HF SNHL) experienced significant benefits and satisfaction from completely-in-the-canal (CIC) hearing aids. These findings suggest HF SNHL individuals are good candidates for amplification.
Area of Science:
- Audiology
- Otorhinolaryngology
- Hearing Science
Background:
- High-frequency sensorineural hearing loss (HF SNHL) affects speech understanding, particularly in noisy environments.
- Completely-in-the-canal (CIC) hearing aids offer discreet amplification solutions.
- Assessing the efficacy of CIC devices for HF SNHL is crucial for audiological rehabilitation.
Purpose of the Study:
- To evaluate the perceived benefit and satisfaction of CIC hearing aid amplification in individuals with HF SNHL.
- To compare outcomes between two groups of listeners with varying degrees of high-frequency hearing loss.
Main Methods:
- A cohort of 79 participants with HF SNHL using CIC hearing aids was surveyed.
- Standardized questionnaires assessed hearing handicap, hearing aid benefit, and satisfaction.
- Participants were divided into two groups based on hearing thresholds at 1000 Hz and 2000 Hz.
Main Results:
- Both listener groups reported significant hearing handicap, benefit, and satisfaction with CIC hearing aids.
- No statistically significant differences in outcomes were observed between the two groups.
- The study demonstrates positive user experiences regardless of the specific high-frequency loss pattern.
Conclusions:
- Listeners with HF SNHL derive meaningful benefit and satisfaction from CIC hearing aid amplification.
- Individuals diagnosed with HF SNHL should be considered appropriate candidates for hearing aid intervention.
- CIC hearing aids are an effective amplification option for managing HF SNHL.
Related Concept Videos
01:31Hearing
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.
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.
01:15Auditory 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...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
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...
01:01Perception of Sound Waves
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.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
01:23Design Example
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...