Related Experiment Video
Updated: Jun 19, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Environmental sound perception of cochlear implant users
1Department of Communication Disorders, The University of Canterbury, Christchurch, New Zealand. valerielooi@hotmail.com
Abstract:
The purposes of this study were (1) to develop a new test of environmental sound perception, the Environmental Sounds Perception Test (EST), (2) to compare the performance of experienced cochlear implant (CI) recipients with that of age-equivalent normally hearing (NH) listeners using this new test, and (3) to pilot test its clinical use as a pre-to-post assessment tool. The closed-set EST consisted of 45 different sounds classified into 9 categories, with each sound being represented by 2 different tokens. The results showed that the NH participants scored significantly higher than the experienced CI users (p<0.001). For the pre-to-post CI group, higher scores were obtained post-surgery with the CI; this difference was approaching significance (p=0.068). Overall these results suggest that CI recipients perform poorer than NH participants on the EST but better than hearing-aid users with a similar level of hearing loss.
Related Concept Videos
Hearing
Perceiving Loudness, Pitch, and Location
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...
Auditory Perception
Perception of Sound Waves
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
The Cochlea
Auditory Pathway
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...
